Hydraulic clamping systems, Überblick



Beschreibung

HYDRAULIC CLAMPING SYSTEMS

A Hydraulic clamping technology – an efficient and economical method for
clamping workpieces with different geometric contours which is highly suitable for series production.

Pressure generators: The optimal solution for any application!

> operating pressure up to bar
> easy to use
> ready for connection
> ready for operation
> variety of options
> compact design
> single and double-acting variants
> modular design of pump
> various valve combinations
> available with and without electric controller
> external control optional
> continuous pressure control by adjustment spindle
> valves in the de-energised condition in locked position


background image

Hydraulic clamping systems

Catalogue 2017/2018

request additional catalogues from

www.amf.de

all sales are subject to our terms of sale, delivery, and payment. all rights for design, photographs and texts reserved by the publisher, amF.
no photomechanical reproduction without our express permission. 2017/2018/6en > mg 3.//08/2016 > printed in germany

Order-no. 446435 ∙ € 3,60

andreas Maier gmbH & Co. Kg
Waiblinger Straße 116 ∙ D-70734 Fellbach
Phone:  +49 711 5766-0
Fax:

+49 711 575725

E-mail:  amf@amf.de
Web: www.amf.de

„ZEro-Point“
clamping system

Hand tools

Hydraulic clamping systems

magnetic clamping
tecHnology

modular Fixture systems

Vacuum clamping systems

toggle clamps

pallet Feed systems

standard clamping elements

gripper

marking and
cleaning tools

locks For doors and gates

Hydraulic

clamping systems

Catalogue 2017/2018

C

ata

l

o

g

u

e

2

0

1

7

/2

0

1

8

H

y

dr

a

u

l

ic

c

l

am

p

in

g

s

y

s

t

e

m

s

background image

2

Hydraulic clamping systems

andreas maier gmbH & co. kg ∙ phone: +49 711 5766-196 ∙ Web: www.amf.de

andreas maier gmbH & co. kg ∙ phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping systems

319

Managing Directors

>   Johannes maier
Volker göbel

tHe aMF serVice gUarantee

>  assuredly on the way to the top

5   individual  development

And if the product you need doesn‘t exist? Just ask us: We will
find the best solution for you – whether it is a special version or
a completely new development.

4   Warranty

We stand by our high quality standards. We handle customer
complaints very liberally and without red tape – whenever
possible even after the end of the warranty period.

3   guaranteed quality standard

AMF stands for manufacturing in-house with the utmost care.
A tradition we have upheld since 1890 – and naturally for
many years now with a modern quality management system to
ISO 9001.

2   short delivery times

AMF‘s finished goods inventory with over 5,000 items
guarantees a delivery readiness of 98%. You can also count on
each warehouse item you order being shipped to you on the
same day.

1   service from genuine experts

„Different tasks, different solutions. In AMF‘s professional
product range, you can find the right solution quickly and
reliably:
either from your local dealer or with help from the specialists in
our teams. A phone call is all it takes.“

e   Made in germany

It goes without saying that our range of products is developed
and manufactured by our team of employees in Germany.

We generate exciteMent.

Since its founding by Andreas Maier in 1890, our company has lived

though many exciting times. today we are the leading manufacturer

in Europe, supplying over 5,000 different products from the fields of

clamping, hand tools and locks. With this extensive product range we

can meet all of our customers‘ needs and requirements. But providing

optimal quality means meeting the challenges at all levels: expert

consultation, modern team organisation, individual solutions (including

special developments), flexibility in response to changing conditions, etc.

and we ourselves find this so exciting that we look forward every day

to shaping the market together with our employees and our customers

– both now and in the future. that is something you can count on.

CoMpany History

1890

Company founded as a lock manufacturer by Andreas
Maier.

1920

Product range extended to include spanners.

1928

Production line assembly of „Fellbach locks“.

1951

AMF introduces clamping elements and diversifies into
workpiece and tool clamping technology.

1965

Toggle clamps extend the AMF product range.
AMF catalogues are now printed in ten languages.

1975

Further specialisation into hydraulic
clamping technology.

1982

Clamping and fixture systems round off
AMF‘s clamping expertise.

1996

AMF team organisation in all sectors of the business.
Quality management with certification to ISO 9001.

2001

AMF Service Guarantee for all products.

2004 Introduction of the ZPS zero-point clamping system.

2007 The magnetic clamping technology extends

the AMF product range.

2009 Development and marketing of AMF Vacuum clamping
technology

2012 Marking and cleaning tools included in the AMF product
range.

These conditions of sale apply to business conducted with companies,

legal entities in the public sector, and legal entities with special budget in

the public sector. Our deliveries and services are carried out exclusively

on the basis of the conditions stated below. Deviating purchasing

conditions of the buyer will not become part of the contract, not even

through acceptance of the order, unless we have expressly accepted

them.
1. Offer and entering into a contract

The basis of our delivery contracts is the latest edition of our catalogue.

Orders are not considered as accepted until they have been confirmed by

us in writing. When goods are supplied from stock and, for organisational

reasons,  you  receive  no  separate  confirmation,  the  invoice  has  the

additional  function  of  confirming  the  order.  Details  of  dimensions  and

weights, and illustrations, drawings and data are not binding and may be

changed by us at any time. Deviations cannot be excluded.
2. Prices

Prices are quoted in EUR ex-works excluding turnover tax, packing,

freight, carriage, and insurance. Unless otherwise agreed, our list prices

on the day of delivery apply. In order to cover our costs, orders under

EUR 50.– net value are subject to a small order surcharge of EUR 10.–.
3. Delivery

Delivery delays are quoted to the best of our knowledge but without

guarantee. Agreed delivery delays begin on the day we accept the order

and refer to the completion of the goods in our works.
4. Transfer of risk

Risks are transferred to you when the goods are passed to a specific

person, company, or organisation that is charged with the execution of

carriage of the goods. This applies also to partial deliveries and when we

have accepted the costs of carriage, delivery or erection. The risks are

also transferred to you when you have defaulted on acceptance.
5. Dispatch

Goods are supplied ex-works. Dispatch is at your cost and risk. Scheduled,

FOB, and CIF deliveries are also at your risk. In the absence of specific

instructions concerning dispatch, we will arrange same as we think fit, but

without accepting any responsibility for choosing the cheapest or most

suitable method of dispatch. We make a handling charge of EUR 5.– if

goods are sent at your request to a third party. You accept that your order

can be supplied in partial deliveries insofar as this is reasonable.
6. Reservation of proprietary rights

Goods delivered remain our property until payment of all claims has been

received in full or until redemption of cheques given in payment. The

cancellation of individual positions in an open invoice and the drawing of

a balance and its acceptance do not affect proprietary rights. You have

the right to dispose of the goods as a normal commercial transaction, but

you are forbidden to pawn, mortgage, or transfer ownership of them in

settlement of a debt or debts. You surrender to us herewith your right to

payment for goods for which we reserve our proprietary rights. You have

the right to collect these payments as long as you meet your obligations

to us. If we request it, you are obliged to name the third party and we have

the right to publish this information and the transfer of rights.
7. Cancellation rights due to late payment or insolvency

If you do not pay for the goods by the time payment is due, and if you

have not paid after expiry of a reasonable time limit set by us, we have

the right to withdraw from the contract and demand the return of goods

already supplied. Rights under § 323 BGB (BGB = German civil law code)

remain otherwise unaffected. Application for the opening of insolvency

proceedings gives us the right to withdraw from the contract and demand

the immediate return of goods supplied before the bankruptcy court

orders protective measures.
8. Packaging

Packages comply with the German packaging regulations (WO).

Disposable packaging is charged at cost. The packaging is not returnable.
9. Tooling costs

In the absence of any agreement to the contrary, tooling made for the

execution of an order remains our property in all cases. This applies even

if we have made a charge for a proportion of the tooling costs.
10. Payment

Our invoices are payable net within 30 days of the date of the invoice,

or with 2% discount if paid within 10 days. Invoices below EUR 50.– are

payable immediately without discount. Our credit notes and your charges

on us reduce the amount subject to discount.

Late payment entitles us to interest at the rate the bank charges us for

a current account overdraft but at least 8 percent above the current

base rate of the European Central Bank. If payment is overdue, we

are  entitled,  after  giving  you  notice  in  writing,  to  cease  fulfilling  our

obligations under the contract until payment is received.
11. Offsetting exclusion

You can only offset payments with legally-established or unopposed

counter claims.
12. Guarantee

If you come to an agreement with us on properties of the goods, we

include this agreement in our technical specifications. If we have to

supply to your drawings, specifications, samples, etc., you accept the

risk associated with suitability for the intended purpose. The point in

time at which risk is transferred is decisive for the contractual condition

of the goods. The deterioration of parts subject to wear in the course

of normal use does not constitute a defect. If the goods supplied are

defective, we will – at our choice and within a reasonable time limit

set by you – supply a replacement or repair the goods. If such repair

or replacement is not satisfactory, you have the right to reduce the

price or withdraw from the contract. Any further guarantee claims are

excluded. Recognisable defects must be notified at the latest within 10

days of receipt and defects that are not recognisable must be notified

as soon as they are discovered. The guarantee period is 24 months

and starts with dispatch of the goods from our works.
13. Hindered or impossible performance

If we are prevented from meeting our obligation by some unforeseeable

event (e.g. disruption of our plant, or delay in the delivery of important

raw materials), which, in spite of taking all reasonable care appropriate

to the circumstances of the case, we have been unable to avert, and it

has become impossible to execute the delivery or service punctually,

the delivery delay will be extended to an appropriate extent.
14. Liability

Except in the case of injury to life or limb, or damage to health caused

by our breach of duty, we are only liable in the event of intent or

culpable negligence on our part.
15. Customer specials

Orders for customer specials must be in writing and include binding

details of execution, quantities etc. For technical reasons we reserve

the  right  to  supply  10%  more  or  less  than  the  quantity  specified.  If

technical changes or cancellation are required, the costs incurred will

be charged to the customer.
16. Deliveries of samples and return of goods

Samples will be charged. When goods have been sent for testing or as

samples, we will credit you with the additional price against subsequent

orders, as long as the net contract value is at least EUR 125.–. The

return of goods is only possible with prior agreement. Customer

specials may not be returned. For goods returned for reasons outside

our responsibility (e.g. wrongly ordered), we charge 10% of the value

of the goods but at least EUR 7.50, to cover administration costs.
17. Place of fulfilment, court of jurisdiction

The place of fulfilment for all obligations arising from this contract is

D-70707 Fellbach. The court of jurisdiction for any legal dispute arising

from this contract is D-71332 Waiblingen. (All disputes that arise from

this contract or about its validity will be decided by a court of arbitration

according to the Arbitration Rules of the German Committee for

Arbitration Courts/Settlement and Arbitration Procedure of the

International Chamber of Commerce. Such decisions will be final and

normal legal procedures are excluded.) German law applies (BGB and

HGB = civil and commercial codes). The application of UN purchasing

law (CISG) is excluded.
18. Validity clause

If individual conditions should be found to be not legally valid, the

remaining conditions continue to apply. The invalid conditions will

be  replaced  by  conditions  which  fulfil  as  closely  as  possible  the

commercial intent of the contract with reasonable consideration of the

interests of both parties. With the publication of these Conditions for

Sales, Deliveries and Payment, all previous versions become invalid.

This does not apply to contracts agreed before publication.

Conditions for sales, deliveries and payments

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

3

preSSure generatorS

9 - 36

Hollow rod and built-in cylinderS

37 - 50

tHreaded and block cylinderS

51 - 82

puSH-pull cylinderS,

83 - 132

Swing clampS

low-preSSure clamping tecHnology

203 - 220

ValVeS, preSSure SwitcHeS, rotary couplingS

221 - 284

and acceSSorieS

tool clamping for preSSeS

285 - 311

Vertical link clampS and toggle clampS

133 - 160

pull down clamping elementS, centring clamp

161 - 182

Support elementS, compenSating elementS

183 - 202

Contents

for an overview in numerical / alphabetical order, see catalouge pages 312 - 317

background image

4

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Our innovations and highlights ...

Swing Clamp,
Cartridge flange

No. 6952E, page 100

link Clamp,
einbauauSführung

No. 6959C, page 148-149

Centring Clamp mini

No. 6974, page 178-179

VertiCal Clamp

No. 6958DT, page 145

Centring Clamp maxi

No. 6974, page 180-181

VertiCal Clamp,

Cartridge flange

No. 6958E-XX, page 134

plug COnneCtiOn

No. 6994S, page 248

SuppOrt element,
tOp-flange-mOunting

No. 6944KH, page 216

SuppOrt element,

Cartridge flange

No. 6944EH, page 218

link Clamp

No. 6959KB, page 156

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

5

... at a glance

built-in COupling
meChaniSm

No. 6989ME, page 244-245

built-in COupling nipple

No. 6989NE, page 246-247

pump unit with
zerO pOSitiOn

No. 6906N, page 24-25

meaSuring COupling

No. 6990-20, page 278

link Clamp

No. 6942KK, page 208

Swing Clamp

No. 6951KP, page 120-121

Swing Clamp

No. 6951FP, page 124-125

adapter fOr preSSure
gauge COnneCtiOn

No. 6990-20-M, page 279

background image

Subject to technical alterations.

6

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

reCOmmendatiOnS and parameterS Of

Oil-hydrauliC deViCeS and plantS.

general:

In this catalogue, parameters are published following the VDI Guidelines 3267 to 3284.

Oil reCOmmendatiOn:

Oil temperature (°C)

designation to DIN 51 524

viscosity to DIN 51 519

0–40

HL, HLP 22 or HLPD 22

ISO VG 22

10–50

HL, HLP 32 or HLPD 32

ISO VG 32

Clamping elementS:

Pressure range:

At continuous pressures below 80 bar, this must be stated on ordering as a different seal
combination may need to be selected.

Ambient temperature:

-10°C to +60°C

Thermal expansion:

If thermal expansion is prevented in a hydraulic system, the pressure rises by about 10 bar per 1 °C
temperature increase. Such conditions require overpressure protection.

Seals:

>  O-rings made of NBR or PU
>  Supporting rings made of PTFE
>  Flange seals made of PTFE, NBR, PU or Cu
>  Glydring made of PTFE or PU
>  Scraper ring made of PU or NBR

At higher ambient temperatures, clamping elements have to be equipped with heat-resistant seals
(Viton® or similar). These are available upon request.

Mounting position:

As desired, unless otherwise specified.

Piston radial force:

The piston radial force must never exceed 5% of the nominal cylinder force.

Stroke speed:

0.01 – 0.5 m/s (for swing clamps, always observe the specifications!).

Leakage rate:

Dynamic = up to 32 mm piston dia.:
< 0.3 cm³ per 1000 double strokes and 10 mm stroke (HLP 22)
from 40 mm piston dia.:
< 0.6 cm³ per 1000 double strokes and 10 mm stroke (HLP 22)
Static = no leakage rate

fOr yOur Safety:

To avoid injuries, a maximum distance of 4 mm (in accordance with DIN 31001, part 1) between
workpiece and clamping element must not be exceeded.

To ensure safe clamping, clamping elements must be positioned in such a way that a residual stroke
remains in the clamping cylinder after clamping.

hOSe COnneCtiOnS:

When using high-pressure hoses, the following must be observed:
>  maximum operating pressure
>  bending radius
>  tightening torque of cap nut
>  dynamic or static use
>  environmental influences
>  the date for the permissible duration of use

pipeS:

Seamless steel pipe, phosphatised and oiled, dia. 8x2 mm, in accordance with DIN 2391 C. Pipes
must be kept as short as possible, especially when used with single-action cylinders. Pipe bends
must be made to the largest possible radius.

COnneCting threadS:

Whitworth pipe thread, X-type threaded bore in accordance with DIN 3852, page 2. Seal by means of
sealing edge. Do not use Teflon tape or additional sealing compound.

StatiC preSSure in
hydrauliC SyStem:

Cylinders, valves or lines and couplings create internal friction. An oil pressure of approx. 2 bar is
required to overcome this static pressure. For single-acting cylinders with return springs, the static
pressure must be reduced by keeping the supply line as short as possible and using piston rods with
the smallest possible mass. Max. permissible back pressure for unclamping must not be exceeded.
The counter-pressure in the return flow should not exceed 0.5 bar.

For double-acting elements, static pressures increases when load is applied to the rod side. Parts of
the relatively large oil volume on the piston side cannot drain quickly enough. Static pressure does
usually not affect the clamping elements.

COmmiSSiOning and
maintenanCe:

>  Use only clean hydraulic oil of the specified type.
>  Observe all instructions and information provided in mounting instructions before commissioning!
>  Vent the hydraulic system at low operating pressure at the highest point until the fluid is free of bubbles.

Hydraulic directional valves are very sensitive to soiling and contamination. Contamination and soiling
of the pressure medium must be avoided. An oil change every six months is recommended. The oil
level in the pressure generator must be checked regularly.

important and interesting facts

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

7

important and interesting facts

hydrauliC parameterS, unitS and

fOrmula SymbOlS:

teChniCal equatiOnS:

Clamping force:

Required
operating
pressure:

Oil volume
per cylinder:

Clamping time:

F (N) = 10 x A (cm

2

) x p (bar)

p (bar) =

V (cm

3

) = 0,1 x A (cm

2

) x stroke (mm)

t (s) = 1+

A (cm

2

) x stroke (mm) x n (no‘s of cyl.)

Q (l/min.) x 167

The units used in this catalogue for physical quantities are in accordance with
DIN 1301.

Clamping fOrCe Of bOltS:

For hydraulic clamping, the fatigue strength of the bolts
is considered to obtain a high number of strokes. The
testing force or yield strength must only be utilized for
low numbers of strokes.

nOminal Cylinder SizeS:

The nominal cylinder sizes are intended to facilitate
cylinder selection: These sizes correspond to the
clamping force in kN, related to the maximum operating
pressure in each case (usually 400 bar) and the
effective piston area.

Nominal

cylinder

size

Piston dia.

[mm]

Piston area

[cm

2

]

Clamping force F en kN

100 bar

250 bar 350 bar 400 bar 500 bar

2,0

8,0

0,5

0,50

1,25

1,75

2,0

2,5

2,4

9,0

0,7

0,68

1,70

2,40

-

-

4,4

12,5

1,3

1,25

3,10

4,40

-

-

5,0

12,0

1,1

1,10

2,80

3,80

4,4

5,5

5,9

14,7

1,7

1,70

4,20

5,90

-

-

6,6

15,5

1,9

1,90

4,70

6,60

-

-

8,0

16,0

2,0

2,00

5,00

7,00

8,0

10,0

10,1

19,0

2,9

2,88

7,20

10,1

-

-

12,0

20,0

3,1

3,00

7,50

10,9

12,0

15,0

14,0

22,0

4,0

4,00

10,0

14,0

-

-

17,5

25,0

5,0

5,00

12,7

17,5

-

-

17,8

25,0

5,1

5,08

12,7

17,8

-

-

20,0

25,0

4,9

5,00

12,5

17,2

20,0

24,5

32,0

32,0

8,0

8,00

20,0

28,0

32,0

40,0

39,9

38,0

11,4

11,4

28,5

39,9

-

-

50,0

40,0

12,5

12,5

31,0

43,8

50,0

62,5

63,0

45,0

15,9

15,9

39,1

55,6

63,6

79,5

70,0

48,0

18,0

18,0

45,0

63,0

72,0

90,0

78,0

50,0

19,6

19,6

49,0

68,6

78,4

98,0

94,0

55,0

23,7

23,7

59,2

83,0

94,8

118,5

125,0

63,0

31,1

31,1

78,0

108,8

124,0

155,5

Clamping bolts

Hydraulic cylinders

Thread

Pitch

[mm]

Nominal

cross-

section

As

[mm

2

]

Testing

force for

bolt grade

8.8

[kN]

Permissi-

ble load for

continuous

operation

[kN]

Nominal cylinder size

2

5

8 12 20 32 50 70 125

M  6

1,00

20,1

11,6

4,3

M  8

1,25

36,6

21,2

8,0

M 10

1,50

58,0

33,7

12,5

M 12

1,75

84,3

48,9

18,3

M 14

2,00

115,0

66,7

25,0

M 16

2,00

157,0

91,0

34,0

M 18

2,50

192,0

115,0

43,0

M 20

2,50

245,0

147,0

55,0

M 24

3,00

253,0

212,0

79,5

M 27

3,00

459,0

275,0

103,0

M 30

3,50

561,0

337,0

126,0

Symbol

Unit

Description

Unit

Conversion

F

N

Force

Newton

1 N ≈ 0,1 kp

1 kN ≈ 100 kp

p

bar

Pressure

bar

1 bar =10 N/cm²

≈ 1 atm.

= 10⁵ N/m²

Pa

Pascal

1 Pa = 1 N/m²

A

cm²

Effective piston

area

-

1 m² = 10⁴ cm²

V

cm³

Volume

-

1 dm³ = 1000 cm³

= 1l (Liter)

t

s

Time

second

-

Q

Oil-flow rate

-

1        = 16,67

l

min

cm³

s

l

min

0,1 x F (N)

A (cm

2

)

Effective

piston area A

Return spring

Stroke

Pressure p

Flow Q

Volume

Clamping

Stroke

force F

background image

Subject to technical alterations.

8

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

important and interesting facts

impOrtant infOrmatiOn abOut Our inStallatiOn drawingS.

ALL INSTALLATION DRAWINGS IN THIS CATALOGUE ARE IN FIRST-ANGLE PROjECTION (DIN)!

COnVerSiOn faCtOrS:

pressure: mpa

bar

pSi

1 mpa

1

10

145,04

1 bar

0,1

1

14,504

1 pSi

0,00689

0,0689

1

mpa = Megapascal   pSi = lb/sq. inch

length: mm

inch

1 inch

25,399

1

1 mm

1

0,0393

temperature: k

°c

°f

k

1

°C x + 273,15

(°F-459,67) x 5/9

°c

K - 273,15

1

(°F - 32) x 5/9

°f

K x 9/5 + 459,67

°C x 9/5 +32

1

k = Kelvin   °c = degree Celsius   °f = degree Fahrenheit

Location of other views in relation to front
elevation, V:

Symbol:

D

Plan view

below V

SL

Side elevation
from left

to the right of V

SR

Side elevation
from right

to the left of V

U

Bottom view

above V

R

Rear view

to the left or
right of V

firSt-angle prOjeCtiOn (din)

Location of other views in relation to front
elevation, V:

Symbol:

third-angle prOjeCtiOn (anSi / uSa)

D

Plan view

above V

SL

Side elevation
from left

to the left of V

SR

Side elevation
from right

to the right of V

U

Bottom view

below V

R

Rear view

to the left or
right of V

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

9

Type

single-acting

double-acting

Operating

pressure max.

[bar]

Clamping

circuits

Output-flow

effective oil

volume

[l]

6901

350

1

2,1 cm³ / Rotation

0,026

6902

700

1

20 cm³ / 1 cm³ / stroke

0,3

6902

700

1

20 cm³ / 2 cm³ / stroke

1,0

6904

500

1

0,85 l/min.

2,1

6906

160

1 - 5

2,5 l/min.

4,0

6906

400

1 - 5

2,5 l/min.

4,0

6906N

160

1 - 4

2,5 l/min.

4,0

6906N

400

1 - 4

2,5 l/min.

4,0

prOduCt exampleS:

no. 6902

no. 6904-25

no. 6906

prOduCt OVerView:

>

easy to use

>

ready for connection

>

ready for operation

>

variety of options

>

compact design

>

single and double-acting variants

>

modular design of pump

>

various valve combinations

>

available with and without electric controller

>

external control optional

>

continuous pressure control by adjustment spindle

>

valves in the de-energised condition in locked position

>

ecological operation

>

electric motors conform to efficiency classes of 2017

preSSure generatOrS:

the Optimal SOlutiOn

fOr any appliCatiOn!

>

1 clamping circuit

>

No pressure adjustment

>

1 clamping circuit

>

Automatic pressure-adjustment

>

1 to 5 clamping circuits

>

Automatic pressure-adjustment

background image

10

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

Screw pump

block version and built-in version,

max. operating pressure 350 bar.

Screw Pump

No. 6901

Order

no.

Article no.

max. operating

pressure

[bar]

stroke volume

per rev.

[cm³]

stroke volume

total

[cm³]

Md max.

[Nm]

Weight

[g]

67819

6901-10

350

2,1

26

50

1524

67835

6901-20

350

2,1

26

50

689

Design:

Housing from steel, hardened and burnished. Threaded spindle hardened and burnished. Screw

pump no. 6901-20 is supplied with 2 grooved nuts. Oil supply via threaded port.

Application:

The screw pump is particularily suitable to operate small clamping fixtures.

Note:

For an enclosed circuit the following has to be considered: The hydraulic clamping elements

connected to the screw pump have to be hermetically tight. Due to possible leakage of the clamping

cylinders during stroke movement and the compressibility of oil (1% at 140 bar), the stroke volume of

the screw pump shall be used up to 70% only. The compressibility is being increased considerabely

by air content in the oil. Therefore the hydraulic system has to be carefully purged of air. An air bleed

screw at the highest position is a necessity. After returing the spindle of the pump, oil must be refilled

at this spot. No air pocket should arise in the hydraulic system, which cannot be purged. A precise

pressure control is possible by a manometer only. An electric pressure switch enables a pressure

monitoring too. A pressure limiting valve is not suitable. Operating the threaded spindle by a torque

wrench is possible. However the pressure should also be checked by a gauge. For the built-in version

the mounting torque has to be observed.

Clamping pressure in

relation to torque:

13,5

27,0

34,0

40,5

47,5

Torque

[Nm]

70

140

205

275

350

Clamping pressure

[bar]

No. 6901-10

No. 6901-20

Stroke

Threaded plug

Oil connection

Stroke

No. 6901-10

No. 6901-20

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

11

Subject to technical alterations.

hand pump

max. operating pressure 1st stage 50 bar,

max. operating pressure 2nd stage 700 bar.

Hand Pump

No. 6902

Order

no.

Article no. Displacement per

stroke 1st stage

[cm³]

Displacement per

stroke 2nd stage

[cm³]

Q

usable

[cm³]

max. hand

lever force

[N]

A

B

Weight

[Kg]

61937

6902-7

20

1

300

350

320 275

6,0

61945

6902-8

20

2

1000

320

620 575

8,1

Design:

Lightweight two-speed hand-pump. Low hand force required at max. operating pressure. Pump

housing from malleable cast iron, oil reservoir from aluminium. With pressure relief valve, factory set

at max. pressure of 700 bar. Hand pump complete with oil fill. Oil supply via threaded port.

Application:

Typical applications for the hand-pump are e.g. small clamping fixtures with irregular use, testing

fixtures or for repair jobs. Please note, in case of a pressure drop the hand-pump is not capable of

automatically maintaining system pressure.

Note:

Can be operated in horizontal position or vertical position with head facing downwards. Before

putting in to operation open combined reservoir vent-and-relief cap. Care for proper air bleeding

of connected hydraulic components. Special pumps for different fluids and pressure ratings are

available upon request.

Hydraulic diagram:

Oil fill

Pressure

connection

Return

Release valve

background image

12

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

hydraulic intensifier

Temperature -40 - +120°C

Hydraulic intensifier

No. 6903

Order

no.

Article no.

Rato i

max. operating

pressure ND

[bar]

max. operating

pressure HD

[bar]

Q max. ND

[l/min]

Q max. HD

[l/min]

Weight

[g]

452060

6903-20-15

1,5

200

300

8

1,0

1000

320184

6903-20-20

2,0

200

400

12

2,0

1000

275198

6903-20-32

3,2

200

640

15

2,5

1000

320192

6903-20-40

4,0

200

800

14

2,0

1000

291526

6903-20-50

5,0

160

800

14

1,6

1000

320200

6903-20-66

6,6

120

800

13

1,3

1000

Design:

Steel housing galvanized and chrome plated, piston and valve seat from steel. Oil supply via

threaded port.

Application:

Hydraulic intensifier are used to pressurise hydraulic clamping fixtures and assembly devices. The

low pressure of the tooling machine‘s hydraulic system will be converted into a higher operating

pressure according to the ratio. Input pressure and output pressure are proportional. The output

pressure can be adjusted by the input pressure.

Features:

The most important functions are shown in the hydraulic circuit diagram. Oil is guided through

directional valve CV to input IN and flows unimpeded through check valves KV1, KV2 and DV and

into high pressure area H.

In these conditions the pressure intensifier achieves a maximum flow rate with rapid forwards motion.

Once input pressure IN is achieved in high-pressure area H, valves KV1, KV2 and DV close. The

output pressure is built up by oscillating pump unit OP. The unit switches itself off automatically when

the output pressure is achieved in high-pressure area H. In case of pressure loss in the high-pressure

area due to consumption or loss of oil, pump unit OP starts automatically in order to maintain the

output pressure.

Pressure can be relieved from the high pressure area via the directly controlled valve DV.

Note:

The hydraulic oil must be filtered with mesh size not larger than nominally 10 µm, 19/16 according

ISO 4406. If the intensifier will be used for applications where the oil supply is disengaged, a leakage

free pilot controlled check valve should be installed between high pressure output H and the cylinder.

Please consider the min. control pressure for releasing. The design of the intensifier allows a certain

leakage between the ports IN and R. This has to be considered in uncoupled operations.

On request:

Manifold mounting and other sizes available on request.

Application examples:

Hydraulic diagram:

ND = low pressure side, HD = high pressure side

High-pressure connection H

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

13

Subject to technical alterations.

Application examples:

Hydraulic diagram:

Hole pattern shape A nominal size 6:

Design:

Steel housing galvanized and chrome plated, piston and valve seat from steel. Oil supply via oil

channel in fixture body.

Application:

Hydraulic pressure boosters are used in clamping fixtures and assembly fixtures. The low pressure of

the tooling machine’s hydraulic system is converted into a higher operating pressure according to the

transmission ratio. Input pressure and output pressure are proportional. The output pressure can be

adjusted by the input pressure.

Features:

The most important functions are shown in the hydraulic circuit diagram. Oil is routed via the

directional control valve to the IN connection and then then flows unhindered through non-return

valves KV1 and KV2, as well as through non-return valve DV in the high-pressure range A.

Under these conditions, a maximum flow through the pressure booster is achieved and a fast forward

movement is generated. If input pressure IN is reached in the high-pressure area, valves KV1, KV2

and PV close. The output pressure is built up by oscillating pump unit OP. The unit switches off

automatically when the final pressure has been reached in the high-pressure area A. In case of a

pressure drop in the high-pressure area due to oil consumption or oil loss, pump unit OP will start

automatically in order to maintain the final pressure.

The pressure in the high-pressure area can be relieved via the the directly actuated pressure valve.

Note:

The hydraulic oil is to be filtered to a max. nominal filter mesh of 10 µm, max. 19/16 to ISO 4406.

When installing in systems in which the supply is decoupled from the pressure booster, a leak oil-

free, releasable non-return valve should be installed on the high-pressure side. It must be noted that

the pilot ratio of the valve must be greater than the transmission ratio of the pressure booster. The

structure of the pressure booster permits a certain leakage between the IN and R connections, which

must be taken into account in decoupled installations.

For O-ring connection,

max. operating pressure in outlet 500 bar,

min. operating pressure in inlet 20 bar

Hydraulic pressure booster

No. 6903

Order

no.

Article no. NG Rato i

max. operating

pressure ND

[bar]

max. operating

pressure HD

[bar]

Q max. ND

[l/min]

Q max. HD

[l/min]

Weight

[g]

328682

6903-30-15 6

1,5

200

300

8

1,0

2360

328708

6903-30-20 6

2,0

200

400

12

2,0

2360

328807

6903-30-28 6

2,8

178

500

15

2,2

2360

328727

6903-30-32 6

3,2

150

500

15

2,5

2360

328740

6903-30-40 6

4,0

125

500

14

2,0

2360

328765

6903-30-50 6

5,0

100

500

14

1,6

2360

328781

6903-30-66 6

6,6

75

500

13

1,3

2360

hydraulic pressure booster

As seen in direction of the plate.

CAD

background image

14

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

air-hydraulic pump

Order

no.

Article no.

Pneum.

pressure min.

[bar]

Pneum.

pressure max.

[bar]

Oil capacity

usable horizontal

[l]

Oil capacity

usable vertical

[l]

Q max.

[cm³/min]

Weight

[Kg]

69435

6904-20

2,8

10,0

2,1

1,5

1400

6,3

max. operating pressure 500 bar.

Air-Hydraulic Pump

No. 6904-20

Design:

Compact compressed air operated hydraulic pump for single acting circuits. Robust plastic tank. The

motor is protected against contamination by an air filter at the inlet and an internal oil filter. Safety

valve to prevent overpressure and sound absorbers are fitted. Oil supply via threaded port.

Application:

The air-hydraulic pump can be used for small hydraulic clamping and assembly equipment. The air-

hydraulic pump is designed for single acting cylinders.

Features:

The large air/oil intensification ratio allows for high hydraulic pressures even with small air pressure.

Low weight allows for mobile application. The pump can be mounted horizontally or vertically.

Applications in hazardous environment is possible.

Note:

Optionally, pumps with other operating pressures are available upon request. Please observe proper

venting of the single acting system.

All tolerances other than specified refer to DINISO 2768 mittel (medium).

Pressure/flow diagram:

Hydraulic diagram:

Air connection G1/4

Oil connection G1/4

Flo

w

rate

l/min

Pressure bar

Air pressure:

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

15

Subject to technical alterations.

air-hydraulic pump

max. operating pressure 500 bar.

Air-Hydraulic Pump

No. 6904-25

Order

no.

Article no.

Pneum.

pressure min.

[bar]

Pneum.

pressure max.

[bar]

Oil capacity

usable horizontal

[l]

Oil capacity

usable vertical

[l]

Q max.

[cm³/min]

Weight

[Kg]

69450

6904-25

2,8

10,0

2,1

1,5

1400

6,3

Hydraulic diagram:

Pressure/flow diagram:

Design:

Compact compressed air operated hydraulic pump for double acting circuits. Robust plastic tank. The

motor is protected against contamination by an air filter at the inlet and an internal oil filter. Safety

valve to prevent overpressure and sound absorbers are fitted. Oil supply via threaded port.

Application:

The air-hydraulic pump can be used as drive element for small hydraulic and assembly equipment.

Safety is guaranteed by automatic pressure compensation. The air-hydraulic pump is designed for

the assembly of valves with connection diagram CETOP 03, i.e. with the option to control single or

double acting cylinders. The changeover can be made manually, pneumatically or electrically.

Features:

The large air/oil intensification ratio allows for high hydraulic pressures even with small air pressure.

Low weight allows for mobile application. The pump can be mounted horizontally or vertically.

Applications in hazardous environment is possible.

Note:

Optionally, pumps with other operating pressures are available upon request. Please observe proper

venting of the single acting system. All tolerances other than specified refer to DINISO 2768 mittel

(medium).

Air connection G1/4

Oil connection G1/4

Oil connection G1/4

Pressure bar

Flo

w

rate

l/min

Air pressure:

background image

16

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

max. operating pressure 500 bar,

min. operating pressure 10 bar.

Seat Valve 3/2

No. 6904-50

Order

no.

Article no.

NG

Q

[l/min]

Weight

[g]

271031

6904-50

6

12

444

Design:

Design: Seat valve

Type of actuation: manual

Application:

For single acting cylinders. CETOP 3 adaptation.

max. operating pressure 500 bar,

min. operating pressure 10 bar.

Seat Valve 3/2

No. 6904-52

Design:

Design: Seat valve

Type of actuation: electric

Application:

For single acting cylinders. CETOP 3 adaptation.

Order

no.

Article no.

NG

Q

[l/min]

Weight

[g]

259242

6904-52

6

12

740

Order

no.

Article no.

NG

Q

[l/min]

Weight

[g]

267427

6904-54

6

12

459

max. operating pressure 500 bar,

min. operating pressure  10 bar.

Seat Valve 3/2

No. 6904-54

Design:

Design: Seat valve

Type of actuation: pneumatic

Application:

For single acting cylinders. CETOP 3 adaptation.

Design:

Design: Piston valve

Type of actuation: manual

Application:

For double acting cylinders. CETOP 3 adaptation.

max. operating pressure 700 bar,

min. operating pressure 10 bar.

Directional valve 4/3

No. 6904-59

Order

no.

Article no.

NG

Q

[l/min]

Weight

[g]

326363

6904-59

6

30

380

Order

no.

Article no.

NG

Q

[l/min]

Weight

[g]

322065

6911A-07-01

6

20

2356

for O-ring joint,

max. operating pressure 400 bar,

min. operating pressure 10 bar.

Seat Valve, 4/3-Way

No. 6911A-07-01

Air filter and

pressure regulator

No. 6904-90

Order

no.

Article no.

Air connection

Weight

[g]

258236

6904-90

G 1/4

740

Application:

For double acting cylinders. CETOP 3 adaptation.

Note:

Further information can be found under Accessories/Valves.

Application:

For Air-Hydraulic Pump No. 6904-20 or -25.

accessories for air-hydraulic pump

CAD

CAD

CAD

CAD

CAD

background image

Subject to technical alterations.

Hydraulic clamping SyStemS

17

future-COmpatible and enVirOnmentally

COnSCiOuS

AMF PUMP UNITS ARE AHEAD OF THEIR TIME

future-COmpatible thankS tO eleCtriC mOtOrS with higher energy effiCienCy

ClaSSeS

At the end of 2009, a new EU regulation was adopted that defined, among other

things, new guidelines for the environmentally-friendly design of electric motors.
The goal is to reduce energy consumption and thus also CO2 emissions.
On 16th june 2011 the first stage of the transition period was ended and the
amendment was entered into force; the second stage will follow in 2017.

our electric motors already comply with these directives, and

thus also comply with the energy efficiency classes that will be
required in 2017.

This is attested by the „Pro Energy Efficiency Initiative“ seal.

the benefits at a glance:
> energy-saving operation thanks to optimised energy-saving motor
> greater efficiency
> ecological operation of the pump units
> future-compatible operation, compliant with the 2017 standard.

enVirOnmentally COnSCiOuS OperatiOn

with biO Oil

Our new hydraulic pump units can be operated either with conventional

mineral-based industrial oil, or with biodegradable industrial vegetable oil.

the advantages of bio oil:
> energy savings of 20 - 30 %
> lower noise level
> longlife oil for longer oil change intervals
> produced on the basis of renewable resources
> highly biodegradable
> not hazardous to waters
> suitable for use in the food industry
> approved by leading machine manufacturers

please get in touch with us!

background image

18

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

4/3-directional seat valve for single and double-acting consumers

unclamp

clamp

coupling

unclamp

position 0

clamp

with pressure relief valve

and electronic pressure switch,

single- and double-acting,

max. operating pressure 160 bar.

Pump unit

No. 6906

pump unit

Design:

Compact, plug-in pump unit, ready for electric and hydraulic operation. Complete with: pressure

limiting valve and pressure switch, solenoid valve, pressure gauge, float switch with temperature

monitoring, oil fill, electrical control with main switch, indicator lamps and flange sockets. Electrical

connection, complete with CEKON connector, pressure filter with filter mesh of 25μm. Oil supply via

threaded port.

Application:

These pump units are mainly used as drive and control elements for single- and double-acting

clamping devices.

Operation type:

Control panel for one and two clamping circuits. Two-hand control panel for only one clamping circuit.

Features:

The radial piston pump is driven via an alternating current standard motor with the energy efficiency

class IE3. The motor is protected against overload by a motor protection switch and a thermoelement.

Pressure setting and pressure monitoring are accomplished via a pressure limiting valve (DBV) and

an electronic pressure switch (EDS). The value set at the pressure limiting valve is stored with the

Mode button on the pressure switch. This simultaneously sets the preprogrammed switch-off and

switch-back point.

- High safety standard through the use of 4/3-way seat valves!

-  No unwanted traversing movements. In the event of a loss of power or contact problems, the valve

returns to the hermetically sealed centre position.

- Easy activation of external machine controllers (e.g. PLC).

The pump unit works in intermittent mode. In the event of a loss of pressure, the pump is

subsequently automatically switched by the pressure switch. In the event of a lack of oil or an

increase in oil temperature, the built-in floating switch with temperature monitoring switches the pump

off and the fault lamp on the electrical controller lights up.

Note:

Ensure that the ventilation is working properly when connecting the elements. In the event of a loss

of pressure, subsequent pumping must not exceed a maximum of 2 times per minute. The pump unit

must not be allowed to run continuously.

Options:

Clamping circuits: For up to 5 clamping circuits, there is an electrical controller. For more than 5

clamping circuits, there is no electrical controller.

Valve combination: Pressure reduction and clamping pressure monitoring in certain clamping circuits.

Pressure reduction for all subsequent clamping circuits. Pressure filter with filter mesh 10µm or 40

µm. Throttle valves for specified clamping circuits.

On request:

Directional valves with other function diagrams on request.

Three to five clamping circuits on request.

Order

no.

Article no.

Clamping

circuits

Q

[l/min]

Valve

type

Matching

control unit

Electric

control

Pressure

switch

Weight

[Kg]

327726

6906-61660

1

2,5

4/3

-

-

-

53

327742

6906-61661

1

2,5

4/3

6906B-2-1

-

61

327635

6906-61661-BZH

1

2,5

4/3

6906BZH-2

2

61

327650

6906-62660

2

2,5

4/3

-

-

-

56

327676

6906-62661

2

2,5

4/3

6906B-3-2

-

64

CAD

Hydraulic diagrams:

Energizing both valve magnets creates a switching position that links all 4 connections to

each other. A depressurised state is created that allows easy coupling.

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

19

Subject to technical alterations.

pump unit

M8 thread for lifting devices

Hydraulic diagrams with DBV and EDS
1 Clamping circuit, double-acting

2 Clamping circuits, double-acting

from min.

664 to max.720

from min.

508 to max.564

background image

20

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

4/3-directional seat valve for single and double-acting consumers

unclamp

clamp

coupling

unclamp

position 0

clamp

with pressure relief valve

and electronic pressure switch,

single- and double-acting,

max. operating pressure 400 bar.

Pump unit

No. 6906

Order

no.

Article no.

Clamping

circuits

Q

[l/min]

Valve

type

Matching

control unit

Electric

control

Pressure

switch

Weight

[Kg]

322214

6906-61610

1

2,5

4/3

-

-

-

53

325951

6906-61611

1

2,5

4/3

6906B-2-1

-

61

325969

6906-61611-BZH

1

2,5

4/3

6906BZH-2

2

61

322230

6906-62610

2

2,5

4/3

-

-

-

56

325977

6906-62611

2

2,5

4/3

6906B-3-2

-

64

Design:

Compact, plug-in pump unit, ready for electric and hydraulic operation. Complete with: pressure

limiting valve and pressure switch, solenoid valve, pressure gauge, float switch with temperature

monitoring, oil fill, electrical control with main switch, indicator lamps and flange sockets. Electrical

connection, complete with CEKON connector, pressure filter with filter mesh of 25μm. Oil supply via

threaded port.

Application:

These pump units are mainly used as drive and control elements for single- and double-acting

clamping devices.

Operation type:

Control panel for one and two clamping circuits. Two-hand control panel for only one clamping circuit.

Features:

The radial piston pump is driven via an alternating current standard motor with the energy efficiency

class IE3. The motor is protected against overload by a motor protection switch and a thermoelement.

Pressure setting and pressure monitoring are accomplished via a pressure limiting valve (DBV) and

an electronic pressure switch (EDS). The value set at the pressure limiting valve is stored with the

Mode button on the pressure switch. This simultaneously sets the preprogrammed switch-off and

switch-back point.

- High safety standard through the use of 4/3-way seat valves!

-  No unwanted traversing movements. In the event of a loss of power or contact problems, the valve

returns to the hermetically sealed centre position.

- Easy activation of external machine controllers (e.g. PLC).

The pump unit works in intermittent mode. In the event of a loss of pressure, the pump is

subsequently automatically switched by the pressure switch. In the event of a lack of oil or an

increase in oil temperature, the built-in floating switch with temperature monitoring switches the pump

off and the fault lamp on the electrical controller lights up.

Note:

Ensure that the ventilation is working properly when connecting the elements. In the event of a loss

of pressure, subsequent pumping must not exceed a maximum of 2 times per minute. The pump unit

must not be allowed to run continuously.

Options:

Clamping circuits: For up to 5 clamping circuits, there is an electrical controller. For more than 5

clamping circuits, there is no electrical controller.

Valve combination: Pressure reduction and clamping pressure monitoring in certain clamping circuits.

Pressure reduction for all subsequent clamping circuits. Pressure filter with filter mesh 10µm or 40

µm. Throttle valves for specified clamping circuits.

On request:

Directional valves with other function diagrams on request.

Three to five clamping circuits on request.

pump unit

CAD

Hydraulic diagrams:

Energizing both valve magnets creates a switching position that links all 4 connections to

each other. A depressurised state is created that allows easy coupling.

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

21

Subject to technical alterations.

pump unit

M8 thread for lifting devices

from min.

664 to max.720

from min.

508 to max.564

Hydraulic diagrams with DBV and EDS
1 Clamping circuit, double-acting

2 Clamping circuits, double-acting

background image

22

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

pump unit

coupling -  simultaneous „clamping“ and „unclamping“ of contacts, subsequent pumping of hydraulic motor

is switched off.

Indicator lamp „operation“ goes out, no operational ready K1 for release of external devices

Oil

level

Pump

Electron.

DS or

DSG

CEE connector

16A, 400V, 5P

S7 = open / (default pos.)

S7 = closed / with oil (= in operation)

X0 = Coupling connector

Start

green

clamp

green

clamp

red

unclamp

red

unclamp

Stop

Pump

Malfunction

Operation green

illuminated

pushbutton S11

clamping unclamping

clamping unclamping

Releasing

magnets

Clamping

magnets

Circuit 1

Position: bottom

Circuit 2

Position: top

External voltage

max. 250 V, 1 A

External connection

Unit ready for operation

To increase safe handling of the clamped parts, the unit ready for operation and

a clamping pressure query should be integrated with the processing machine.

4-pin M12x1

1-brown

2-white

3-blue

4-black

Start button

must be restarted

after power failure or oil

deficiency, excess temperature

Ready for

operation

Winding thermo

contact in motor

M1

Malfunction

red

Motor

protection

optional:

remote contr

ol panel

No. 6906 pump unit, 1 and 2 clamping circuits

Electrical specifications:

Nominal voltage

400 V/50 Hz three-phase

Control voltage

24 V DC

Valve voltage

24 V DC

Motor speed

2900 1/min.

Direction of rotation

any

Motor rating

1,1 kW

Motor type

three-phase standard motor

Nominal current

3 A

Fuse, supply line

16 A slow-blow

Fuse, control circuit

2 A primary, 8 A secondary

Electrical connection

Ölflex 100; 5«1,5 mm

2

3 m with CEE connector 16 A 6 h

Protection class

IP 54

Duty cycle

max. 50 % intermittent operation

Hydraulic specifications:

Max. operating pressure

160 bar / 400 bar

Oil capacity, reservoir

10 litres

Oil capacity, usable

4 litres

Oil-flow rate

2,5 I/min.

Valve types

4/3 seat valve

No. of hydraulic circuits

1 or 2

Hydraulic connection

pipe fitting G1/4

Noise level

max. 70 dB(A)

Ambient temp. range

–10° C to + 35° C

Position of use

upright

Pump design

radial-piston pump with 3 pistons

Load cycle

max. 500/h

Fluid

hydraulic oils

HLP and HLPD according to DIN 51524 part 2

Oil recommendation

HLP 22 and HLPD 22 or

HLP 32 and HLPD 32

Viscosity

ISO VG 22 and 32 DIN 51519

Wiring circuit of pump unit with 2 clamping circuits, remote control

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

23

hydraulic clamping systems

background image

24

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

coupling

unclamp

position 0

clamp

unclamp

clamp

Design:

Compact, plug-in energy-saving pump unit, ready for electric and hydraulic operation. Complete

with: pressure limiting valve and pressure switch, solenoid valve, pressure gauge, float switch with

temperature monitoring, oil fill, electrical control with main switch, indicator lamps and flange sockets.

Electrical connection, complete with CEKON connector, pressure filter with filter mesh of 25μm. Oil

supply via threaded port.

Application:

This pump unit is used predominantly as a drive and control element for single and double-acting

clamping fixtures.

Control method:

For connection of 1-circuit control console no. 6906B-2-1 order no. 324723

Features:

The radial piston pump is driven via an alternating current standard motor with the energy efficiency

class IE3. The motor is protected against overload by a motor protection switch and a thermoelement.

The pressure is set via a pressure limiting valve (PLV) and centralised electronic pressure switch

(EPS). The pressure is set via the electronic pressure switch (EPS) in the A and B channel. They sit

directly in the directional control valve. These EPS control the directional control valve in the working

or zero position and output signals for switching the pump motor on and off.

- Reduced power consumption and lower temperature rise

- No heat influence on the oil column in the distributors and loads

- No hazard to components due to excessive rise in pressure

- No risk of injury from hand contact

- No drop in magnetic force

- Prolonged service life of the magnets

The pump unit works in intermittent mode. If pressure drops in the A- or B-channel, the pump is

automatically switched on afterward by the electronic pressure switch EDS. In case of low oil level or

an increase in oil temperature, the built-in floating switch with temperature monitoring switches the

pump off and the fault lamp on the electrical controller comes on.

Note:

Ensure correct bleeding when connecting elements. In the event of a loss of pressure, subsequent

pumping must not exceed a maximum of 2 times per minute. The pump unit must not run

continuously.

On request:

Two, three and four clamping circuits on request.

Order

no.

Article no.

Clamping

circuits

Q

[l/min]

Valve

type

Matching

control unit

Electric

control

max. operating

pressure

[bar]

Weight

[Kg]

328930

6906N-61666

1

2,5

4/3

6906B-2-1

160

61

328955

6906N-61616

1

2,5

4/3

6906B-2-1

400

61

With pressure limiting valve and

electronic pressure switches,

double-acting.

Pump unit

No. 6906N

Hydraulic diagrams:

Energizing both valve magnets creates a switching position that links all 4 connections to each other.

A depressurised state is created that allows easy coupling.

4/3-directional seat valve for double-acting consumers

pump unit

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

25

Subject to technical alterations.

0

1,0

2,0

3,0

0

10

20

30

40

50

60

0,5

1,0

1,5

2,0

2,5

3,0

3,5

4,0

0

0,5

1,0

1,5

2,0

2,5

3,0

0

10

20

30

40

50

60

1,5

1,0

0,5

2,0

2,5

3,0

3,5

4,0

4,5

5,0

Hydraulic specifications:

Max. operating pressure

400 bar

Oil capacity, reservoir

10 litres

Oil capacity, usable

4 litres

Oil-flow rate

2,5 I/min.

Valve types

4/3 seat valve

No. of hydraulic circuits

1

Hydraulic connection

pipe fitting G1/4

Noise level

max. 70 dB(A)

Ambient temp. range

–10° C to + 35° C

Position of use

upright

Pump design

radial-piston pump with 3 pistons

Load cycle

max. 500/h

Fluid

hydraulic oils

HLP and HLPD according to DIN 51524

part 2

Oil recommendation

HLP 22 and HLPD 22 or

HLP 32 and HLPD 32

Viscosity

ISO VG 22 and 32 DIN 51519

Hydraulic diagram:

Electrical specifications:

Nominal voltage

400 V/50 Hz three-phase

Control voltage

24 V DC

Valve voltage

24 V DC

Motor speed

2900 1/min.

Direction of rotation

any

Motor rating

1,1 kW

Motor type

three-phase standard motor

Nominal current

3 A

Fuse, supply line

16 A slow-blow

Fuse, control circuit

2 A primary, 8 A secondary

Electrical connection

Ölflex 100; 5«1,5 mm

2

3 m with CEE connector 16 A 6

Protection class

IP 54

Duty cycle

max. 50 % intermittent operation

Pump unit No. 6906N

Cycle time 3 min.:

Consumption [kWh]

Test duration [days]

Cycle time 10 min.:

Temp

. at the v

alv

e [°C]

Zero position consumption

[kWh]

Temp. zero position [°C]

Standard consumption [kWh]

Temp. standard [°C]

Consumption [kWh]

Temp

. at the v

alv

e [°C]

Test duration [days]

Zero position consumption

[kWh]

Temp. zero position [°C]

Standard consumption [kWh]

Temp. standard [°C]

pump unit

background image

Subject to technical alterations.

26

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

advantages over shut-off operation:

>

Short cycle frequencies of less than 8 seconds are possible!

>

With continuous operation (depressurized circulation), the motor runs

continuously at low load.

>

The pump generates only minimal pressure that approaches zero.

>

To build up the pressure, the 2/2 way seat valve ( Y99 ) closes.

>

The 4/3 way seat valve ( Y01 – Y02 ) is opened and actuates the load.

>

As soon as the pressure switch in the load line signals the set pressure, the

2/2 and 4/3 way seat valves return to the zero position.

>

The pressure on the load is maintained and the pump continues to run in

depressurized circulation.

6906d - PUMP UNIT FOR CONTINUOUS OPERATION
(DEPRESSURIzED CIRCULATION)

Pressure

setpoint

max. 400 bar

Pressure setpoint

min. 9 bar,

max. 600 bar.

RPP 2.5 : Q = 2.5l/min, n = 2900 rpm

tank volume 10 dm³, P = 1.1 KW

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

27

hydraulic clamping systems

background image

28

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

4/3-directional seat valve for single and double-acting consumers

unclamp

clamp

coupling

unclamp

position 0

clamp

Order

no.

Article no.

Clamping

circuits

Q

[l/min]

Valve

type

Matching

control unit

Electric

control

Pressure

switch

Weight

[Kg]

324590

6906-61620

1

2,5

4/3

-

-

-

53

326033

6906-61621

1

2,5

4/3

6906B-2-1

-

61

326041

6906-61621-BZH

1

2,5

4/3

6906BZH-2

2

61

324616

6906-62620

2

2,5

4/3

-

-

-

56

326058

6906-62621

2

2,5

4/3

6906B-3-2

-

64

with pressure-control device (DSG),

single- and double-acting,

max. operating pressure 400 bar.

Pump unit

No. 6906

Design:

Compact, plug-in pump unit, ready for electric and hydraulic operation. Complete with: Pressure-

control device, solenoid valve, pressure gauge, floating switch with temperature monitoring, oil

filling, electrical control with main switch, indicator lamps and flange sockets. Electrical connection,

complete with CEKON connector, pressure filter with filter mesh of 25μm. Oil supply via threaded

port.

Application:

These pump units are mainly used as drive and control elements for single- and double-acting

clamping devices.

Operation type:

Control panel for one and two clamping circuits. Two-hand control panel for only one clamping circuit.

Features:

The radial piston pump is driven via an alternating current standard motor to energy efficiency class

IE3. The motor is protected against overload by a motor protection switch and a thermocouple.

Pressure setting and pressure monitoring are made via a pressure control device.  The pressure

control device combines the pressure limiting valve (PLV) and the pressure switch (PS) in a single

device. The pressure is continuously adjustable over the entire pressure range by means of an

adjustment sleeve. The point for restarting is about 10-15% below the switch-off point.

- High safety standard through the use of 4/3-directional seat valves!

-  No unwanted travel movements. In the event of a loss of power or contact problems, the valve

returns to the hermetically sealed centre position.

- Easy actuation by external machine controllers (e.g. PLC).

The pump unit works intermittently. In the event of a loss of pressure, the pump is subsequently

automatically switched by the pressure control device. In case of low oil level or an increase in oil

temperature, the built-in floating switch with temperature monitoring switches the pump off and the

fault lamp on the electrical controller comes on.

Note:

Ensure that the ventilation is working properly when connecting the elements. In the event of a loss

of pressure, subsequent pumping must not exceed a maximum of 2 times per minute. The pump unit

must not be allowed to run continuously.

Options:

Clamping circuits: For up to 5 clamping circuits, there is an electrical controller. For more than 5

clamping circuits, there is no electrical controller.

Valve combination: Pressure reduction and clamping pressure monitoring in certain clamping circuits.

Pressure reduction for all subsequent clamping circuits. Pressure filter with filter mesh 10µm or 40

µm. Throttle valves for specified clamping circuits.

On request:

Directional valves with other function diagrams on request.

Three to five clamping circuits on request.

pump unit

CAD

Hydraulic diagrams:

Energizing both valve magnets creates a switching position that links all 4 connections to

each other. A depressurised state is created that allows easy coupling.

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

29

Subject to technical alterations.

pump unit

M8 thread for lifting devices

1 Clamping circuit, double-acting

2 Clamping circuit, double-acting

Hydraulic diagrams with DSG

from

min.

664

to

max.

720

from

min.

508

to

max.

564

background image

30

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

pump unit

No. 6906 pump unit, 1 and 2 clamping circuits

Electrical specifications:

Nominal voltage

400 V/50 Hz three-phase

Control voltage

24 V DC

Valve voltage

24 V DC

Motor speed

2900 1/min.

Direction of rotation

any

Motor rating

1,1 kW

Motor type

three-phase standard motor

Nominal current

3 A

Fuse, supply line

16 A slow-blow

Fuse, control circuit

2 A primary, 8 A secondary

Electrical connection

Ölflex 100; 5«1,5 mm

2

3 m with CEE connector 16 A 6 h

Protection class

IP 54

Duty cycle

max. 50 % intermittent operation

Hydraulic specifications:

Max. operating pressure

400 bar

Oil capacity, reservoir

10 litres

Oil capacity, usable

4 litres

Oil-flow rate

2,5 I/min.

Valve types

4/3 seat valve

No. of hydraulic circuits

1 or 2

Hydraulic connection

pipe fitting G1/4

Noise level

max. 70 dB(A)

Ambient temp. range

–10° C to + 35° C

Position of use

upright

Pump design

radial-piston pump with 3 pistons

Load cycle

max. 500/h

Fluid

hydraulic oils

HLP and HLPD according to DIN 51524 part 2

Oil recommendation

HLP 22 and HLPD 22 or

HLP 32 and HLPD 32

Viscosity

ISO VG 22 and 32 DIN 51519

Wiring circuit of pump unit with 2 clamping circuits, remote control

Oil

level

Pump

Electron.

DS or

DSG

CEE connector

16A, 400V, 5P

S7 = open / (default pos.)

S7 = closed / with oil (= in operation)

X0 = Coupling connector

Start

green

clamp

green

clamp

red

unclamp

red

unclamp

Stop

Pump

Malfunction

Operation green

illuminated

pushbutton S11

clamping unclamping

clamping unclamping

Releasing

magnets

Clamping

magnets

Circuit 1

Position: bottom

Circuit 2

Position: top

External voltage

max. 250 V, 1 A

External connection

Unit ready for operation

To increase safe handling of the clamped parts, the unit ready for operation and

a clamping pressure query should be integrated with the processing machine.

4-pin M12x1

1-brown

2-white

3-blue

4-black

Start button

must be restarted

after power failure or oil

deficiency, excess temperature

Ready for

operation

Winding thermo

contact in motor

M1

Malfunction

red

Motor

protection

optional:

remote contr

ol panel

coupling -  simultaneous „clamping“ and „unclamping“ of contacts, subsequent pumping of hydraulic motor

is switched off.

Indicator lamp „operation“ goes out, no operational ready K1 for release of external devices

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

31

mOdular pump

unit nO. 6906

RKP 2.5 : Q = 2.5 l/min, n = 2900 U/min.
Tank volume 10 dm³, P = 1.1 kW

OptiOnS:

tank volume:

10.0 litres

oil capacity,

usable:

4.0 litres

oil-flow rate:

2.5 l/min. or

5.0 l/min.

clamping

Up to 5 clamping circuits including

circuits:

electrical control. For more than 5

clamping circuits without electrical

control.

further options:

>

Two-hand remote-control panel (only

for pump units with 1 clamping circuit)

>

Pressure-control device for stepless

pressure adjustment by a single spindle

>

Valve combinations with pressure-

control and throttle valves

baSe unit

... witH ValVeS

... witH ValVeS and controller

background image

Subject to technical alterations.

32

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Spacer plates - pressure-control valve

Control function in P

Spacer plates - twin-type

throttle check valve

Valve combinations in the modular system

Spacer plates - 3-way pressure-control valve

Control function in P

Spacer plate with connectable throttle

Function in P

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

33

Valve combinations in the modular system

Combination of directional valve zero

position, in which A, B and T are

connected, plus pressure control in P

with two pressure levels in one circuit.

Combination of directional valve zero

position, in which A, B and T are

connected, plus unlockable check

valves at the consumer.

Special ValVeS aVailable on requeSt

no. 6910a-07-02

no. 6911a-07-01

no. 6911a-07-02

Clamping device

background image

34

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

with pin

Coupling Plug

No. 6906BS-1

Order

no.

Article no.

Control voltage

Number of poles

Weight

[g]

60772

6906BS-1

24 V =

24

122

Design:

Aluminium die-case housing. In locked position - protection class IP65.

Application:

Connection to the machine side as replacement part for control panel or for external control of pump

unit.

Pressure switch for

machine enabling

No. 6906BS-3 with pin

Control of valves

No. 6906BS-4 with

socket

No. 6906BS-1

with pin

AMF control console

No. 6906B-3-2 or

No. 6906B-2-1

Controller AMF pump

unit No. 6906

No. 6906BS-2

with socket

For pressure switch for

machine enabling

with pin

Surface-mounted housing

No. 6906BS-3

Order

no.

Article no.

Control voltage

Number of poles

Weight

[g]

66118

6906BS-3

24 V =

24

145

Design:

Aluminium die-case housing. In locked position - protection class IP65.

Application:

Connection to the unit side for external querying of pressure and temperature.

with bush

Coupling Plug

No. 6906BS-2

Order

no.

Article no.

Control voltage

Number of poles

Weight

[g]

61895

6906BS-2

24 V =

24

122

Design:

Aluminium die-case housing. In locked position - protection class IP65.

Application:

Connection to the unit side for external querying of pressure and temperature.

with bush

Surface-mounted housing

No. 6906BS-4

Order

no.

Article no.

Control voltage

Number of poles

Weight

[g]

66126

6906BS-4

24 V =

24

145

Design:

Aluminium die-case housing. In locked position - protection class IP65.

Application:

Connection to the machine side as replacement part for pump unit.

accessories for pump unit

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

35

Subject to technical alterations.

1-circuit remote control (rotary switch)

No. 6906B-2-1

2-circuit remote control (rotary switch)

No. 6906B-3-2

Two-hand safety operator panel

No. 6906BZH-2

Design:

Compact cast aluminium housing with control elements, cable and coupling plug.

Application:

The two-handed safety operating panel may be used only in combination with the pump units from

Andreas Maier GmbH & Co. KG. It is suitable for the units with the following order numbers: 327635,

325969 or 326041.

The two-handed safety operating panel controls fixtures (cylinders etc.) on which hazardous

extension and retraction movements (strokes ≥ 4 mm) can occur.

The following fluidic system requirements must be met for the control panel function:

-  4/3-way directional seat valve with hermetically sealed zero position.

Alternatively, the combination of a 4/3-way valve where, in the zero position, A, B and T are

connected and P is disabled, with at least one controlled non-return valve for the potentially-

hazardous consumer line, or a controlled twin non-return valve is possible.

- Pressure switch in channels A and B

To convert an existing unit to two-handed operation, please contact Andreas Maier GmbH & Co. KG.

Assembly:

Insert cable with plug into the connection for the remote control of the pump unit. Set the pressure

switch to operate at about 75% of the pressure in the clamping circuit.

Operation:

Key switch for switching on and for switching over to zero position and coupling position. Rotary

switch for selecting the following functions - clamping, unclamping and zero position. Two-hand

switch for initiating movements. Stop switch for fast switch off in case of danger. Indicator lights signal

the control status.

General:

Re-clamping required following an electrical voltage outage and after the power supply is restored.

With pump unit no. 6906, the solenoid on the directional valve remains energised after self-locking.

Note:

Each user of the two-handed safety control panel must determine the necessary performance level of

the respective safety function by his own risk assessment and must ensure that this is also complied

with.

Design:

Compact polyester housing with control elements, cable and coupling plug. Protection class IP65.

Application:

The control panel has a selector switch „coupling-clamping-0-unclamping-coupling“ for each

clamping circuit , and a black STOP mushroom push button for stopping the pump and valves.

During clamping and unclamping the corresponding valve is switched. In switch position 0, the valve

is spring loaded and returns to the zero position (mostly blocking position). In the coupling position

both magnets are switched at the same time. The pump is switched off. In addition, the „Operation“

indicator lights on the unit go out and the readiness for external machine enabling is switched off.

In external machine enabling, the signal „ready for operation“ and one pressure switch on each of the

clamping points to be monitored should be integrated.

Order

no.

Article no.

Control voltage

Number of poles

Cable length

[m]

Weight

[g]

324723

6906B-2-1

24 V =

24

5

1660

323394

6906B-3-2

24 V =

24

5

1660

No. 6906B-3-2

No. 6906B-2-1

Order

no.

Article no.

Control voltage

Cable length

[m]

Weight

[g]

324426

6906BZH-2

24 V =

5

4840

accessories for pump unit

background image

Subject to technical alterations.

36

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

hydraulic clamping systems

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

37

Type

Clamping force

[kN]

Pull force

[kN]

Clamping stroke

[mm]

No. of models

Operating mode

6920

20 - 125

20 - 125

8 - 20

5

single acting

6920G

20 - 125

20 - 125

8 - 20

5

single acting

6920D

18 - 188

14 - 153

10 - 25

6

double acting

6921

71 - 101

71 - 101

6 - 10

2

single acting

6921S

45,5 - 63,2

45,5 - 63,2

6 - 10

2

single acting

6935

20 - 53

20 - 53

6,5 - 12,5

3

single acting

6935D

20 - 53

20 - 53

6,5 - 12,5

3

double acting

prOduCt exampleS:

no. 6920

no. 6920d

no. 6935d

>

Clamping force: 20 - 125 kN

>

Cylinder housing: without external

thread

>

Clamping force: 18 - 188 kN

>

Cylinder housing: with external

thread

>

Clamping force: 20 - 53 kN

>

Cylinder housing: without external

thread

prOduCt OVerView:

>

clamping force up to 188 kN

>

operating pressure up to 500 bar

>

hollow-piston rod with through-hole, with or without

internal thread

>

particularly suitable to convert existing mechanical

fixtures into hydraulically operated fixtures

>

for push- and pull operation

>

single and double-acting variants

>

wipers to protect against contamination

At continuous pressures below 80 bar, this must be stated

on ordering as a different seal combination may need to be

selected.

hOllOw-rOd Cylinder

fOr multiple uSe

in manufaCturing

prOCeSSeS

background image

38

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

Hollow-piston cylinder no. 6920-50 in milling device for link lever.

single acting, spring return,

max. operating pressure 400 bar.

Hollow Rod Cylinder

No. 6920

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Built-in return spring. With sintered bronze filter. 2 wipers and vent screw. Oil supply

via threaded port.

Application:

Particularly suitable for retrofitting existing fixtures for hydraulic actuation. When workpieces are clamped onto a machine tool table, the hollow rod cylinder can be fitted

over the clamp bolt instead of the nut. The hollow rod cylinders can be used for push or pull applications.

Features:

Completely sealed against contamination and chips by means of sinter metal breather and two wipers. Piston can be moved to its end stop. Oil connection at both ends,

thus easy lining up in series.

Note:

Cylinders are designed for use in combination with tempered bolts, material grade 8.8, e. g. DIN 787 and DIN 6379. Bolts matching the hole are recommended.

For single acting cylinders there is risk of sucking in coolant during the return stroke. In this case the cylinders have to be protected against the direct effect of coolant. The

sinter metal breather should be protected.

hollow rod Cylinder

Order

no.

Article no.

push-pull force

at 100 bar

[kN]

push-pull force

at 400 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

effective piston area

[cm²]

Spring force min.

[N]

Weight

[g]

64998

6920-20

5,0

20

8

4

4,9

200

930

63016

6920-32

8,0

32

10

8

8,0

350

1730

65011

6920-50

12,5

50

12

15

12,8

540

1650

63057

6920-80

20,0

80

15

30

20,0

750

3850

65003

6920-125

32,0

125

20

64

32,8

1120

6250

Order

no.

Article no.

Piston

dia.

[mm]

A

dia. D dia. F

K

L

dia. M dia. N

R

64998

6920-20

32

80

52

40

56,0

82

12,5

20

G1/8

63016

6920-32

40

90

60

44

60,5

94

14,5

24

G1/8

65011

6920-50

48

101

70

50

71,5

103

18,5

26

G1/8

63057

6920-80

60

115

80

60

87,0

119

22,5

32

G1/4

65003

6920-125

75

149

100

75

108,0

151

27,5

38

G1/4

Dimensions:

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

39

Subject to technical alterations.

hollow rod Cylinder

single acting, spring return,

max. operating pressure 400 bar.

Hollow Rod Cylinder with internal thread

No. 6920G

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Built-in return spring. Built-in sintered bronze filter. 2 wipers and vent screw. Oil

supply via threaded port.

Application:

Particularly suitable for retrofitting existing fixtures for hydraulic actuation. When workpieces are clamped onto a machine tool table, the hollow rod cylinder can be fitted

over the clamp bolt instead of the nut. The hollow rod cylinders can be used for push or pull applications.

Features:

Completely sealed against contamination and chips by means of sinter metal breather and two wipers. Piston can be moved to its end stop. Oil connection at both ends,

thus easy lining up in series.

Note:

Cylinder size 20 to 50 are designed for use in combination with tempered bolts, material grade 8.8. For size 80 and 125 bolts of material grade 12.9 must be used.

For single acting cylinders there is risk of sucking in coolant during the return stroke. In this case the cylinders have to be protected against the direct effect of coolant. The

built in sinter metal breather should be protected.

Order

no.

Article no. Piston

dia.

[mm]

A dia. D dia. F K

L

dia. M dia. N R dia. P G x depth S

65318

6920G-20

32

80

52

40 56,0 90,0 12,5 20 G1/8 27 M12x29 17

63032

6920G-32

40

90

60

44 60,5 101,5 14,5 24 G1/8 30 M14x30 19

65334

6920G-50

48

101 70

50 71,5 113,0 16,5 26 G1/8 35 M16x39 22

63073

6920G-80

60

115 80

60 87,0 132,5 18,5 32 G1/4 38 M18x38 27

65359

6920G-125

75

149 100

75 108,0 163,0 20,5 38 G1/4 49 M20x47 32

Dimensions:

Hollow-piston cylinder no. 6920G-125 in powder welding system for clamping of U-profile panels.

Order

no.

Article no.

push-pull force

at 100 bar

[kN]

push-pull force

at 400 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

effective piston area

[cm²]

Spring force min.

[N]

Weight

[g]

65318

6920G-20

5,0

20

8

4

4,9

200

1000

63032

6920G-32

8,0

32

10

8

8,0

350

1750

65334

6920G-50

12,5

50

12

15

12,8

540

1700

63073

6920G-80

20,0

80

15

30

20,0

750

3900

65359

6920G-125

32,0

125

20

64

32,8

1120

6400

CAD

background image

40

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

hollow rod Cylinder

double acting,

max. operating pressure 500 bar.

Hollow Rod Cylinder

No. 6920D

Design:

Cylinder barrel from steel, burnished. Piston case hardened and ground. Piston rod is supplied as

standard with HC threads. lf a piston rod with internal thread is desired, a HELI-COIL insert (diameter

x1.5) is screwed into the HC thread. Oil supply via threaded port.

Application:

Particularly suitable for retrofitting existing fixtures for hydraulic actuation. When workpieces are

clamped onto a machine tool table, the hollow rod cylinder can be fitted over the clamp bolt instead

of the nut. The hollow rod cylinders can be used for push or pull applications.

Note:

Cylinders are designed for use in combination with tempered bolts, material grade 12.9 (e.g. DIN

787). Threaded body provides a wide range of adjustability. Suitable flange nuts DIN 70852.

Order

no.

Article no.

A D x depth dia. F

G

K

L L1 dia. M dia. N dia. P R dia. S

62794

6920D-15-001

59 M50x1,5 35 HCM 8 11 60 36 8,2

16

12 G1/8 25

62836

6920D-24-001

64 M55x1,5 40 HCM 10 12 65 41 10,2

20

16 G1/4 32

62844

6920D-38-001

72 M65x1,5 45 HCM 12 14 73 45 12,2

25

20 G1/4 40

62851

6920D-59-001

78 M70x1,5 50 HCM 16 14 79 50 16,2

32

25 G1/4 50

62869

6920D-92-001

95 M80x2,0 60 HCM 20 18 96 60 20,2

40

32 G1/4 63

62877

6920D-150-001 109 M100x2,0 75 HCM 27 22 110 65 27,2

50

40 G1/4 80

Dimensions:

Order

no.

Thread insert x length

for cylinder size

Weight

[g]

67538

M  8x12

6920D-15-001

1

67546

M10x15

6920D-24-001

3

67595

M12x18

6920D-38-001

4

67603

M16x24

6920D-59-001

9

67611

M20x30

6920D-92-001

19

67629

M27x40,5

6920D-150-001

43

Note:

The HELI-COlL thread insert can be installed using a manual or automatic installation tool. The

driving pin is used only for installation, and must subsequently be removed using a special pin-

breaker. Without the HELI-COlL insert the piston through-hole has the value of the gap ØM (see

dimensions table).

Order

no.

Article no.

push-pull force

VH 100 bar

[kN]

push-pull force

VH at 500 bar

[kN]

push-pull force

RH at 100 bar

[kN]

push-pull force

RH at 500 bar

[kN]

Stroke

H

[mm]

Vol. VH

[cm³]

Vol. RH

[cm³]

effektive piston

area VH

[cm²]

effective piston

area RH

[cm²]

Weight

[g]

62794

6920D-15-001

3,77

18,85

2,89

14,45

10

3,77

2,89

3,77

2,89

850

62836

6920D-24-001

6,03

30,15

4,90

24,50

10

6,03

4,90

6,03

4,90

1100

62844

6920D-38-001

9,42

47,10

7,65

38,25

16

15,10

12,20

9,42

7,65

1650

62851

6920D-59-001

14,72

73,60

11,59

57,95

16

23,50

18,50

14,72

11,59

2000

62869

6920D-92-001

23,12

115,60

18,60

93,00

20

46,20

37,20

23,12

18,60

3050

62877

6920D-150-001

37,68

188,40

30,63

153,15

25

94,20

76,50

37,68

30,63

5350

VH = work stroke, RH = back stroke

Accessories

HELI-COIL thread insert

M8 10 depth

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

41

Subject to technical alterations.

single acting, spring return,

max. operating pressure 400 bar.

Hollow Rod Cylinder

No. 6921

hollow rod Cylinder

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Retraction by disc springs. 1 wiper. Piston rod with internal thread and two flats (size

70 x 6) or hexagon (size 100 x 10). Built-in sintered bronze filter. Oil supply via threaded port.

Application:

When workpieces are clamped onto a machine tool table, the hollow rod cylinder can be screwed onto the clamp bolt and be joined to the clamp by the two threads in the

body. Also suitable for holding and clamping devices directly on a machine tool table. The hollow rod cylinder is designed for use in combination with tempered bolts of

material grade 8.8 for size 100x10 and material grade 12.9 for the size 70x6. In case bolts of material grade 8.8 and grade 10.9 are used the pressure has to be reduced for

size 70x6 for continuous operation (see diagramme).

Features:

Protected against contamination and chips by a wiper. High forces in a small design.

Note:

For single acting cylinders there is risk of sucking in coolant during the return stroke. In this case the cylinders have to be protected against the direct effect of coolant. The

built in sinter metal breather should be protected.

Order

no.

Article no.

Piston

dia.

[mm]

A

B dia. C dia. D E

F

G

K

L

M

R

S

63768

6921-70x6

55

58 10 16,5

75 26 50 M8 13 65 M16 G1/4 SW22

63149

6921-100x10

70

85 10 25,0 100 56 70 M10 16 97 M24 G1/4 SW36

Dimensions:

Diagram for size 70x6:

Application example:

Order

no.

Article no.

push-pull force

at 100 bar

[kN]

push-pull force

at 400 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

effective piston area

[cm²]

Spring force min.

[N]

Weight

[g]

63768

6921-70x6

17,8

71

6

11

18,5

700

1675

63149

6921-100x10

24,4

101

10

26

25,9

1500

4800

The shown hydraulic clamping device shows casts of several sizes that are clamped by hydraulic

pull-down clamp no. 6972F and pull-down counterpart no. 6977. To obtain an efficient means of

adjustment, 2 base plates are each equipped with 6 hydraulic nuts no. 6921 which are connected to

the grooved table via bolts for T-nut according to DIN 787. The adjustment of the base plate and the

clamping of the workpiece can be performed independently by a pump unit with 2 clamping circuits.

No. 6921

Baseplate

Grooved table

No. 6972F

No. 6977

Adjustment options

Clamping

for

ce

F

[kN]

Clamping

pr

essur

e

p

[bar]

Longterm reliability diagram for

clamping bolts M 16 according to DIN

787, ISO 4762, ISO 4014 and grades

8.8, 10.9, 12.9

Number

of clamping cycles

CAD

background image

42

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

Single acting, with spring return,

max. operating pressure 350 bar.

Hollow Rod Cylinder with internal thread

No. 6935

hollow rod Cylinder

Design:

Cylinder barrel from steel, hardened and burnished. Piston and piston rod case hardened and ground. Piston rod with through-hole and internal thread. Wiper at piston rod.

Return spring from stainless steel. Oil supply via threaded port.

Application:

Particularely suitable to retrofit existing mechanical fixtures for hydraulic actuation. The hollow cylinder can be operated as push or pull cylinder. Universal cylinder for

clamping, pushing, locking and punching.

Features:

Clamping cylinder with tapped piston rod. Tapped piston rod ends allow the use of custom end attachments.

Note:

For single acting cylinders there is the risk of succing in coolant through the breather port. Therefore, the sinter metal breather has to be protected e.g. by cover plates from

direct access of coolant. The system has to be completely vented thoroughly during installation.

Order

no.

Article no.

push-pull force

VH 100 bar

[kN]

push-pull force

VH 350 bar

[kN]

Stoke B

[mm]

Vol.

[cm³]

effective piston area

[cm²]

Weight

[g]

67850

6935-20

5,8

20,6

6,5

3,8

5,9

572

67876

6935-30

8,4

29,7

9,5

8,1

8,5

940

67892

6935-53

15,2

53,2

12,5

19,3

15,2

1837

Dimensions:

Order

no.

Article no.

A

C

D

E

F

G

H

J x depth

dia. K

L

M

N

P

dia. Q

dia. S

67850

6935-20

51,0

7,0

43,5

41,5

32

M10

28,5

M6x6

10,5

12

20,5

15

55

16,0

39,5

67876

6935-30

63,5

7,0

56,5

49,5

36

M12

24,5

M8x8

13,5

18

25,5

15

62

19,0

47,5

67892

6935-53

76,0

9,5

66,0

64,5

50

M16

25,0

M10x13

16,5

23

30,0

18

76

25,5

63,5

VH = work stroke, RH = back stroke

Vent screw

Oil connection

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

43

Subject to technical alterations.

Dimensions:

Order

no.

Article no.

A

C

D

E

F

G

H

J x depth

dia. K

L

M

N

P

dia. Q

dia. S

67918

6935D-20

51,0

7,0

43,5

41,5

32

M10

28,5

M6x6

10,5

12

20,5

15

55

16,0

39,5

67934

6935D-30

63,5

7,0

56,5

49,5

36

M12

24,5

M8x8

13,5

18

25,5

15

62

19,0

47,5

67959

6935D-53

76,0

9,5

66,0

64,5

50

M16

25,0

M10x13

16,5

23

30,0

18

76

25,5

63,5

Double-acting,

max. operating pressure 350 bar.

Hollow Rod Cylinder with internal thread

No. 6935D

Oil connection

Order

no.

Article no.

push-pull force

VH 100 bar

[kN]

push-pull force

VH 350 bar

[kN]

push-pull force

RH at 100 bar

[kN]

push-pull force

RH at 350 bar

[kN]

Stoke B

[mm]

Vol.

[cm³]

effective piston area

[cm²]

Weight

[g]

67918

6935D-20

5,8

20,6

5,8

20,6

6,5

3,8

5,9

572

67934

6935D-30

8,4

29,7

8,4

29,7

9,5

8,1

8,5

940

67959

6935D-53

15,2

53,2

15,2

53,2

12,5

19,3

15,2

1837

Design:

Cylinder barrel from steel, hardened and burnished. Piston and piston rod case hardened and ground. Piston rod with through-hole and internal thread. Wiper at piston rod.

Return spring from stainless steel. Oil supply via threaded port.

Application:

Particularely suitable to retrofit existing mechanical fixtures for hydraulic actuation. The hollow cylinder can be operated as push or pull cylinder. Universal cylinder for

clamping, pushing, locking and punching.

Features:

Clamping cylinder with tapped piston rod. Tapped piston rod ends allow the use of custom end attachments.

Note:

For single acting cylinders there is the risk of succing in coolant through the breather port. Therefore, the sinter metal breather has to be protected e.g. by cover plates from

direct access of coolant. The system has to be completely vented thoroughly during installation.

VH = work stroke, RH = back stroke

hollow rod Cylinder

CAD

background image

Subject to technical alterations.

44

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

hydraulic clamping systems

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

45

Subject to technical alterations.

Type

Clamping force

[kN]

Clamping stroke

[mm]

No. of models

Operating mode

6924

4,5 - 70

6 - 15

7

single acting

6925

4,4 - 39,9

6,5 - 32

11

single acting

6925D

17,8 - 39,9

25,5 - 51

4

double acting

prOduCt exampleS:

no. 6924

no. 6925

no. 6925d

>

Clamping force: 4,5 - 70 kN

>

Cylinder housing: with fine thread

>

Clamping force: 4,4 - 39,9 kN

>

Cylinder housing: nitrided,

with fine thread

>

Clamping force: 17,8 - 39,9 kN

>

Cylinder housing: nitrided,

with fine thread

prOduCt OVerView:

>

clamping force up to 70 kN

>

operating pressure up to 400 bar

>

piston with and without internal thread

>

for push- and pull operation

>

quick adjustment, secured using standard grooved nuts

>

single and double acting variants

>

wipers to protect against contamination

At continuous pressures below 80 bar, this must be stated

on ordering as a different seal combination may need to be

selected.

built-in CylinderS

fOr uniVerSal uSe

background image

46

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

built-in Cylinder

single acting, spring return,

max. operating pressure 400 bar.

Built-In Cylinder

No. 6924

Design:

Cylinder from steel, burnished. Piston and piston rod case hardened and ground. Built-in return

spring, sintered bronze breather. Wiper at piston rod. Cylinder barrel with metric fine thread for

locknuts to DIN 70852. Oil supply via threaded port.

Application:

Suitable for converting mechanical to hydraulic clamping devices. The built-in cylinder is inserted

in through holes and counter screwed at both ends with grooved nuts. General-purpose clamping

element for clamping, pushing, pressing, riveting and punching.

Features:

The metric thread extending over the whole length of the cylinder permits with its two flange nuts DIN

70852 lengthwise adjustment over a large range and fast positioning in the requiredby by two flange

nuts. Fast attachment of fixture elements and thrust pieces the piston thread.

Note:

For single acting cylinder types there is a risk of sucking coolant liquid at the return stroke. In this

case the cylinder has to be protected against the direct effect of  coolant. The built in sinter metal

breather should be protected.

Order

no.

Article no.

A

dia. D dia. E

F

G

K x depth

L

S

R

63024

6924-05

50,0

4

8

20

M30x1,5

M4x10

56,0

6

G1/8

63099

6924-08

46,5

4

10

20

M32x1,5

M5x12

52,5

8

G1/8

63115

6924-12

59,0

5

12

28

M38x1,5

M6x14

65,5

9

G1/4

63131

6924-20

63,5

4

12

25

M40x1,5

M8x20

70,5

10

G1/4

63164

6924-32

72,0

4

16

30

M48x1,5

M10x25

81,0

13

G1/4

63156

6924-50

80,0

5

20

35

M60x1,5

M12x28

89,0

17

G1/4

63180

6924-70

93,0

6

25

44

M70x1,5

M16x35

105,0

22

G1/4

Dimensions:

Order

no.

Article no.

Push force at 100 bar

[kN]

Push force at 400 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston dia.

[mm]

Piston area

[cm²]

Spring force min.

[N]

Weight

[g]

63024

6924-05

1,1

4,5

6

0,66

12

1,1

45

300

63099

6924-08

2,0

8,0

6

1,20

16

2,0

60

270

63115

6924-12

3,0

12,0

8

2,50

20

3,1

95

480

63131

6924-20

5,0

20,0

8

4,00

25

4,9

205

500

63164

6924-32

8,0

32,0

10

8,00

32

8,0

340

850

63156

6924-50

12,5

50,0

12

15,00

40

12,5

400

1450

63180

6924-70

17,5

70,0

15

27,00

48

18,0

650

2050

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

47

Subject to technical alterations.

built-in Cylinder

Single acting, with spring return,

max. operating pressure 350 bar.

Built-In Cylinder

No. 6925

Design:

Cylinder barrel from steel, hardened and burnished. Piston and piston rod case hardened and

ground. Piston rod with internal thread. Wiper at piston rod. Cylinder barrel with metric fine thread for

locknut to DIN 70852. Return spring from stainless steel. Oil supply via threaded port.

Application:

Suitable to convert mechanical fixtures into hydraulic operated. The built-in cylinder can easily be

mounted and adjusted into fixture walls by grooved nuts. Universal cylinder for clamping, pushing,

locking and rivetting.

Features:

The metric thread extending over the whole length of the cylinder permits with its two flange nuts DIN

70852 lengthwise adjustment over a large range. Tapped piston rod end allows the use of individual

contact bolts.

No. 6925-10

No. 6925-04

No. 6925-10

No. 6925-04

Order

no.

Article no.

A

B

D

dia. E

dia. F

G

J x depth

SW

67975

6925-04-1

1,5

51,0

6,5

-

6,5

M20x1,5

-

16

67991

6925-04-2

1,5

65,5

6,5

-

6,5

M20x1,5

-

16

68015

6925-04-3

1,5

83,0

6,5

-

6,5

M20x1,5

-

16

68031

6925-10-1

6,5

55,5

12,5

24,5

12,5

M28x1,5

M6x11

-

67801

6925-10-2

6,5

68,5

12,5

24,5

12,5

M28x1,5

M6x11

-

67827

6925-10-3

5,0

86,0

12,5

24,5

12,5

M28x1,5

M6x11

-

Dimensions:

Order

no.

Article no.

Push force at 100 bar

[kN]

Push force at 350 bar

[kN]

Stroke C

[mm]

Vol.

[cm³]

Piston area

[cm²]

Weight

[g]

67975

6925-04-1

1,25

4,4

9,5

1,2

1,3

73

67991

6925-04-2

1,25

4,4

19,0

2,5

1,3

91

68015

6925-04-3

1,25

4,4

32,0

4,1

1,3

118

68031

6925-10-1

2,88

10,1

6,5

1,8

2,9

200

67801

6925-10-2

2,88

10,1

19,0

5,5

2,9

210

67827

6925-10-3

2,88

10,1

32,0

9,2

2,9

254

CAD

background image

48

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

built-in Cylinder

Order

no.

Article no.

Compressive force Vh

at 100 bar

[kN]

Compressive force Vh

at 350 bar

[kN]

Stroke C

[mm]

Vol. VH

[cm³]

Piston area VH

[cm²]

Weight

[g]

67843

6925-18-1

5,08

17,8

12,5

6,4

5,1

304

67868

6925-18-2

5,08

17,8

25,5

13,0

5,1

354

67884

6925-18-3

5,08

17,8

51,0

26,0

5,1

463

67900

6925-40-1

11,40

39,9

12,5

14,2

11,4

644

67926

6925-40-2

11,40

39,9

25,5

29,0

11,4

744

Single acting, with spring return,

max. operating pressure 350 bar.

Built-In Cylinder

No. 6925

Dimensions:

Order

no.

Article no.

dia. A

B

D

E

F

G

SW

J x depth

K

dia. L

67843

6925-18-1

20,1

68,0

12,5

39,5

8

M35x1,5

17

M8x11

6,5

30,5

67868

6925-18-2

20,1

80,5

12,5

52,5

8

M35x1,5

17

M8x11

6,5

30,5

67884

6925-18-3

20,1

109,0

12,5

81,0

8

M35x1,5

17

M8x11

6,5

30,5

67900

6925-40-1

28,2

70,0

12,5

39,5

10

M48x1,5

25

M12x13

9,0

45,0

67926

6925-40-2

28,2

83,0

12,5

52,5

10

M48x1,5

25

M12x13

9,0

45,0

Design:

Cylinder barrel from steel, hardened and burnished. Piston and piston rod case hardened and

ground. Piston rod with internal thread. Wiper at piston rod. Cylinder barrel with metric fine thread for

locknut to DIN 70852. Oil supply via threaded port.

Application:

Suitable to convert mechanical fixtures into hydraulic operated. The built-in cylinder can easily be

mounted and adjusted into fixture walls by flange nuts. Universal cylinder for clamping, pushing,

locking, rivetting and punching.

Features:

The metric thread extending over the whole length of the cylinder permits with its two flange nuts DIN

70852 lengthwise adjustment over a large range. Tapped piston rod end allows the use of individual

contact bolts.

Note:

The system has to be completely vented during installation.

G1/8 Oil connection

VH = work stroke, RH = back stroke

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

49

Subject to technical alterations.

Double-acting,

max. operating pressure 350 bar.

Built-In Cylinder

No. 6925D

Design:

Cylinder barrel from steel, hardened and burnished. Piston and piston rod case hardened and

ground. Piston rod with internal thread. Wiper at piston rod. Cylinder barrel with metric fine thread for

locknut to DIN 70852. Oil supply via threaded port.

Application:

Suitable to convert mechanical fixtures into hydraulic operated. The built-in cylinder can easily be

mounted and adjusted into fixture walls by flange nuts. Universal cylinder for clamping, pushing,

locking, rivetting and punching.

Features:

The metric thread extending over the whole length of the cylinder permits with its two flange nuts DIN

70852 lengthwise adjustment over a large range. Tapped piston rod end allows the use of individual

contact bolts.

Note:

The system has to be completely vented during installation.

VH = work stroke, RH = back stroke

Order

no.

Article no.

Compressive force Vh

at 100 bar

[kN]

Compressive force Vh

at 350 bar

[kN]

Compressive force RH

at 100 bar

[kN]

Compressive force RH

at 350 bar

[kN]

Stroke C

[mm]

Vol. VH

[cm³]

Vol. RH

[cm³]

Piston area

VH

[cm²]

Piston area

RH

[cm²]

Weight

[g]

67942

6925D-18-1

5,08

17,8

1,6

5,9

25,5

13,0

4,4

5,1

1,7

762

67967

6925D-18-2

5,08

17,8

1,6

5,9

51,0

26,0

8,8

5,1

1,7

1061

67983

6925D-40-1

11,40

39,9

5,0

17,5

25,5

29,0

12,7

11,4

5,0

1379

68007

6925D-40-2

11,40

39,9

5,0

17,5

51,0

58,1

25,5

11,4

5,0

1869

Dimensions:

Order

no.

Article no.

dia. A

B

D

E

F

G

SW

J x depth

K

dia. L

M

N

67942

6925D-18-1

20,1

80,5

12,5

52,5

8

M48x1,5

17

M8x11

6,5

45,0

14,0

14

67967

6925D-18-2

20,1

109,0

12,5

81,0

8

M48x1,5

17

M8x11

6,5

45,0

14,0

14

67983

6925D-40-1

28,2

82,0

12,5

52,5

10

M65x1,5

25

M12x13

9,0

60,5

20,5

11

68007

6925D-40-2

28,2

111,0

12,5

81,0

10

M65x1,5

25

M12x13

9,0

60,5

20,5

11

G1/8 Oil connection

built-in Cylinder

CAD

background image

50

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

Flange Nut

DIN 70852

* not to DIN

Design:

Steel, zinc-plated.

Application:

The flange nuts hold cylinders in the required position.

Order

no.

Article no.

dia. A

B

dia. D

E

F

G

No‘s grooves

Weight

[g]

63974

70852-M20

27

6

32

5,5

2,3

M20x1,5

4

19

63784

70852-M28

36

7

42

6,5

2,8

M28x1,5

4

35

63792

70852-M30

38

7

44

6,5

2,8

M30x1,5

4

36

63800

70852-M32

41

8

48

7,0

3,3

M32x1,5

4

52

63818

70852-M35

43

8

50

7,0

3,3

M35x1,5

4

51

63826

70852-M38

47

8

54

7,0

3,3

M38x1,5

4

60

63834

70852-M40

49

8

56

7,0

3,3

M40x1,5

4

62

63842

70852-M48

57

8

65

8,0

3,8

M48x1,5

6

75

63859

70852-M50

60

8

68

8,0

3,8

M50x1,5

6

84

63867

70852-M52

62

8

70

8,0

3,8

M52x1,5

6

87

63875

70852-M55

67

8

75

8,0

3,8

M55x1,5

6

100

63883

70852-M58 *

71

9

80

11,0

4,3

M58x1,5

6

140

63891

70852-M60

71

9

80

11,0

4,3

M60x1,5

6

130

63909

70852-M65

76

9

85

11,0

4,3

M65x1,5

6

130

63917

70852-M70

81

9

90

11,0

4,3

M70x1,5

6

140

63925

70852-M80 *

91

10

100

11,0

4,3

M80x2,0

6

180

267062

70852-M85 *

99

10

108

11,0

4,3

M85x2,0

6

239

63933

70852-M100 *

116

10

125

11,0

4,3

M100x2,0

6

299

flange nut

CAD

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

51

prOduCt exampleS:

no. 6930

no. 6932

no. 6934

>

Clamping force: 5,5 - 40 kN

>

Cylinder housing: with fine thread

>

Clamping force: 2,5 - 24,5 kN

>

Cylinder housing: with fine thread

>

Clamping force: 2,4 - 17,5 kN

>

Cylinder housing: nitrided, with

fine thread

prOduCt OVerView:

Type

Clamping force

[kN]

Clamping stroke

[mm]

No. of models

Operating mode

6929

2,5 - 40,0

5 - 20

8

single acting

6930

5,5 - 40,0

10 - 20

5

single acting

6930D

4,5 - 50,2

12 - 40

6

double acting

6932

2,5 - 24,5

4 - 12

5

single acting

6933

5,5 - 40,0

8 - 12

5

single acting

6934

2,4 - 17,5

5 - 19

5

single acting

>

clamping force up to 40 kN

>

operating pressure up to 500 bar

>

piston with and without internal thread

>

wipers to protect against contamination

>

oil supply via fixture body

>

single and double-acting variants

At continuous pressures below 80 bar, this must be stated

on ordering as a different seal combination may need to be

selected.

threaded CylinderS -

SpaCe-SaVing and

eaSy tO inStall

background image

52

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

threaded Cylinder

single acting, spring return,

max. operating pressure 500 bar,

min. operating pressure 25 bar.

Threaded Cylinder for tube connection,

with spherical piston rod

No. 6929-03

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Wiper at

piston rod, union nut with cutting ring.

Oil supply via threaded port.

Features:

Hoses or tubes can be directly screwed onto the threaded cylinders.

Note:

Pistons of these cylinders must not be loaded in retracted position. Care for protection against

aggressive lubricants and coolants. As the cylinder has no stop for the tube, the preassembly of the

cutting ring has to be effected by means of a hardened pre-mounting tool. Due to the construction

size, an internal stop for the piston is not possible. Therefore, please do not operate the threaded

cylinder without workpiece, as the spring could be damaged or its spring force could be reduced.

Order

no.

Article no.

A

B

dia. E

F

G

~L

R

SW

60111

6929-03x10

48

1

5

6

M16x1,5

57

6

13

Dimensions:

Application examples No. 6929-03:

Order

no.

Article no.

Push force at 100 bar

[kN]

Push force at 500 bar

[kN]

Vol.

[cm³]

Stroke H

[mm]

Piston dia.

[mm]

Piston area

[cm²]

Spring force min.

[N]

Weight

[g]

60111

6929-03x10

0,5

2,5

0,5

10

8

0,5

24

80

Cap nut m8S (SW19)

with olive s8S

Article no. 6994-10

Article no. 6994-07

Order no. 170316

Order no. 160200

Order no. 186437

Hexagonal nut M16x1,5

SW 24

SW 19

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

53

Subject to technical alterations.

threaded Cylinder

single acting, spring return,

max. operating pressure 500 bar,

min. operating pressure 25 bar.

Threaded Cylinder bottom sealing, with

spherical piston rod

No. 6929

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Wiper at

piston rod, with plastic seal for bottom sealing of the cylinder. For no. 6929-02x05 and 6929-02 x 10

sealing with Cu-ring. Oil supply via oil channel in fixture body.

Application:

These threaded cylinders can be used in all types of clamping fixtures. Ideal for pressure bars for

tolerance compensation in multiple-workpiece clamping fixtures, and for positioning, holding or

ejecting, and clamping workpieces.

Features:

Small dimensions, can be installed closely spaced side-by-side. The cylinders can be screwed into

the fixture body up to the hexagon.

Note:

Pistons of these cylinders must not be loaded in retracted position. Care for protection against

aggressive lubricants and coolants. The sealing surface of the mounting hole to the thread must be at

a right angle and even. For sizes 02x05 and 02x10, a internal stop for the piston is not possible due

to the construction size. Therefore, do not operate the threaded cylinder without workpiece, as the

spring could be damaged or its spring force could be reduced.

Application examples:

Installation dimensions:

Dimensions:

Order

no.

Article no.

A

B

C

dia. E

F

G

L

P min.

P max.

R

SW1

T max.

U min.

dia. W max.

DI-1

Seal

Order No.

60095

6929-02x05

27,0

1,0

4

5

4

M12x1,5

29,0

12

23

6

11

-

15

-

120105

60103

6929-02x10

40,0

1,0

4

5

4

M12x1,5

42,0

12

36

6

11

-

15

-

120105

60046

6929-05

35,0

2,0

7

12

6

M22x1,5

38,5

16

29

25

19

8

25

12

182162

60053

6929-08

43,0

2,0

8

16

9

M26x1,5

46,5

20

34

35

24

9

30

16

182170

60061

6929-12

53,0

2,0

8

20

10

M30x1,5

56,5

24

43

50

30

9

38

20

182188

60079

6929-20

55,5

2,5

11

25

12

M38x1,5

60,0

28

44

70

36

11

45

25

182196

60087

6929-32

82,5

2,5

12

32

15

M48x1,5

87,5

42

68

100

46

13

57

30

182204

Order

no.

Article no.

Push force at 100

bar

[kN]

Push force at 500

bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston dia.

[mm]

Piston area

[cm²]

Md max.

[Nm]

Spring force min.

[N]

Weight

[g]

60095

6929-02x05

0,5

2,5

5

0,25

8

0,5

10

24

15

60103

6929-02x10

0,5

2,5

10

0,50

8

0,5

10

24

25

60046

6929-05

1,1

5,5

10

1,10

12

1,1

40

45

80

60053

6929-08

2,0

10,0

12

2,40

16

2,0

50

70

140

60061

6929-12

3,0

15,5

15

4,70

20

3,1

60

105

220

60079

6929-20

4,9

24,5

16

7,80

25

4,9

80

145

390

60087

6929-32

8,0

40,0

20

16,00

32

8,0

225

270

930

CAD

background image

54

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

threaded Cylinder

single acting, spring return,

max. operating pressure 500 bar,

min. operating pressure 25 bar.

Threaded Cylinder bottom sealing, piston

rod with internal thread

No. 6930

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Wiper at

piston rod, with plastic seal for bottom sealing of the cylinder. Oil supply via oil channel in fixture body.

Application:

These threaded cylinders can be used in all types of clamping fixtures. Ideal for pressure bars for

tolerance compensation in multiple-workpiece clamping fixtures, and for positioning, holding or

ejecting, and clamping workpieces.

Features:

Small dimensions, can be installed closely spaced side-by-side. The cylinders can be screwed into

the fixture body up to the hexagon.

Note:

Pistons of these cylinders must not be loaded in retracted position. Care for protection against

aggressive lubricants and coolants. The sealing surface of the mounting hole to the thread must be at

a right angle and even.

Dimensions:

Order

no.

Article no.

A

B

C

dia. E

F

G

K x depth

L

P min.

P max.

SW1

SW2

T max.

U min. dia. W max.

DI-1

Seal

Order No.

60129

6930-05

35,0

9,0

7

12

6

M22x1,5

M6x6

45,5

16

29

19

10

8

25

12

182162

60137

6930-08

43,0

8,5

8

16

9

M26x1,5

M6x6

53,0

20

34

24

13

9

30

16

182170

60145

6930-12

53,0

11,5

8

20

10

M30x1,5

M8x8

66,0

24

43

30

17

9

38

20

182188

60152

6930-20

55,5

11,5

11

25

12

M38x1,5

M8x8

69,0

28

44

36

19

11

45

25

182196

60160

6930-32

82,5

13,5

12

32

15

M48x1,5

M12x12

98,5

42

68

46

24

13

57

30

182204

Order

no.

Article no.

Push force at 100

bar

[kN]

Push force at 500

bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston dia.

[mm]

Piston area

[cm²]

Md max.

[Nm]

Spring force min.

[N]

Weight

[g]

60129

6930-05

1,1

5,5

10

1,1

12

1,1

40

45

80

60137

6930-08

2,0

10,0

12

2,4

16

2,0

50

70

140

60145

6930-12

3,0

15,5

15

4,7

20

3,1

60

105

230

60152

6930-20

4,9

24,5

16

7,8

25

4,9

80

145

410

60160

6930-32

8,0

40,0

20

16,0

32

8,0

225

270

970

Application examples:

Installation dimensions:

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

55

Subject to technical alterations.

threaded Cylinder

double-acting,

max. working pressure 400 bar,

min. operating pressure 25 bar.

Threaded Cylinder

No. 6930D

Design:

Cylinder housing from hardened steel, burnished. Piston tempered, ground, nitrided, and treated with

a corrosion-resistant coating. Oil supply via oil channel in fixture body.

Application:

These threaded cylinders can be used in all types of clamping fixtures. Ideal for pressure bars for

tolerance compensation in multiple-workpiece clamping fixtures, and for positioning, holding or

ejecting, and clamping workpieces. Can be used extending or retracting.

Features:

The O-rings are smaller than the diameter of the screw-in thread. This reduces the risk of damage to

the seal during the installation process.

Two-piece body makes it easier to change the piston-rod seal. Housing seals against the surface of

the hole sleeve. For sizes 05 and 08, there is additional sealing between the housing head and the

fixture body.

Small dimensions, can be installed closely spaced side-by-side. The cylinder must be screwed into

the fixture body up to its flange.

Note:

Maximum speed of operation 0.5 m/s

Can be supplied on request for higher pressures and temperatures.

Dimensions:

Order

no.

Article no. A

B

C dia. D dia. E

F7

F

G

I

J

K x depth L ±1 M +1 P ±0,2 R dia. S

H7

min. dia. T dia. U W ±0,2 dia. X dia. Y f7 SW

OR-1

O-ring

Order No.

320507

6930D-05 39 5,5 3,6

12

8

19,2 M22x1,5 44 18,0

M5x11

52

25,5

39

20 18

31

30

8,5

2,5

18

7

321141

320515

6930D-08 48 6,0 4,0

16

10

23,0 M26x1,5 53 19,0

M6x14

65

30,0

48

25 22

33

32

8,5

2,5

22

8

321240

320523

6930D-12 53 7,0 4,0

20

12

29,2 M32x1,5 62 20,0

M8x14

67

31,5

53

30 28

38

37

10,5

4,2

28

10 320952

320531

6930D-20 65 7,0 4,4

25

16

35,8 M40x1,5 72 25,0 M10x18

82

39,0

65

35 35

45

44

13,5

5,2

35

13 321018

320549

6930D-32 72 10,0 4,4

32

20

44,8 M50x1,5 79 28,0 M12x18

94

44,0

72

42 44

55

54

15,5

6,2

44

17 320091

320556

6930D-50 86 12,0 5,2

40

25

56,2 M60x1,5 94 30,5 M16x28 112 47,0

86

50 55

66

65

19,0

6,2

55

22 321174

Application example:

Installation dimensions:

Order

no.

Article no.

Push force at

100 bar

[kN]

Push force at

400 bar

[kN]

Pull force at

100 bar

[kN]

Pull force at

400 bar

[kN]

Stroke H ±1

[mm]

Vol. push

[cm³]

Vol. pull

[cm³]

Piston area push

[cm²]

Piston area pull

[cm²]

Md

[Nm]

Weight

[g]

320507

6930D-05

1,1

4,5

0,6

2,5

12

1,4

0,8

1,1

0,6

44

107

320515

6930D-08

2,0

8,0

1,2

4,9

16

3,2

2,0

2,0

1,2

77

186

320523

6930D-12

3,1

12,5

2,0

8,0

20

6,3

4,0

3,1

2,0

154

270

320531

6930D-20

4,9

19,6

2,9

11,6

25

12,3

7,3

4,9

2,9

301

519

320549

6930D-32

8,0

32,1

4,9

19,6

32

25,7

15,7

8,0

4,9

594

920

320556

6930D-50

12,5

50,2

7,6

30,6

40

50,2

30,6

12,5

7,7

1115

1639

optional

Fit depth

0,2 low, symmetrical

with Rz 6.3-

Rounded edges

at R max. 0.5

CAD

background image

56

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

threaded Cylinder

single acting, spring return,

max. operating pressure 500 bar.

Threaded Cylinder

with spherical piston rod

No. 6932

Design:

Cylinder barrel from steel, burnished with hex nut. Piston and piston rod case hardened and ground.

Wiper at piston rod. Built-in return spring. Sintered bronze breather. Attachment with standard fine

thread. Sealing by sealing edge, see „Notes“. Oil supply via oil channel in fixture body.

Application:

Ideal for clamping bars for tolerance compensation in multiple fixtures and for positioning, clamping

or discharging workpieces.

Features:

Small dimensions, can be installed closely spaced side-by-side. The cylinders must be screwed into

the fixture body up to the hexagon.

Note:

The screw-in cylinders cannot be loaded in the retracted position. For single acting cylinder types,

there is a risk of sucking in liquid. The cylinders must be protected against direct penetration of

cutting and cooling liquids. The built-in sintered bronze filter should be protected by appropriate

arrangement or by a cover. Sealing by sealing edge. For the locating hole, the sealing surface must

be at right angles to the thread, flat and not hardened.

Order

no.

Article no. Piston

dia.

[mm]

A

B

C dia. E

G

L

P +1

R

SW1 U min. dia. Y

60178

6932-02

8

14 1 12

5

M16x1,5 27

12

10

19

24

23

60186

6932-05

12

14 1 12

8

M20x1,5 27

12

28

24

30

29

60194

6932-08

16

21 2 14

10

M24x1,5 37

14

30

27

34

33

60202

6932-12

20

27 2 18

12

M30x1,5 47

18

36

36

44

43

60210

6932-20

25

33 2 21

16

M36x1,5 56

21

50

41

50

49

Dimensions:

Installation dimensions:

Order

no.

Article no.

Push force at 100 bar

[kN]

Push force at 500 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston area

[cm²]

Md max.

[Nm]

Spring force min.

[N]

Weight

[g]

60178

6932-02

0,5

2,5

4

0,20

0,5

80

25

50

60186

6932-05

1,1

5,5

4

0,45

1,1

90

35

80

60194

6932-08

2,0

10,0

6

1,20

2,0

110

65

130

60202

6932-12

3,0

15,0

8

2,50

3,1

120

100

300

60210

6932-20

5,0

24,5

12

5,90

4,9

130

155

470

No. 6933

No. 6932

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

57

Subject to technical alterations.

threaded Cylinder

Installation dimensions:

single acting, spring return,

max. operating pressure 500 bar.

Threaded Cylinder, piston rod

with internal thread

No. 6933

Design:

Cylinder barrel from steel, burnished with hex nut. Piston and piston rod case hardened and ground.

Wiper at piston rod. Built-in return spring. Sintered bronze breather. Attachment with standard fine

thread. Sealing by sealing edge, see „Notes“. Oil supply via oil channel in fixture body.

Application:

Ideal for clamping bars for tolerance compensation in multiple fixtures and for positioning, clamping

or discharging workpieces.

Features:

Small dimensions, can be installed closely spaced side-by-side. The cylinders must be screwed into

the fixture body up to the hexagon.

Note:

The screw-in cylinders cannot be loaded in the retracted position. For single acting cylinder types,

there is a risk of sucking in liquid. The cylinders must be protected against direct penetration of

cutting and cooling liquids. The built-in sintered bronze filter should be protected by appropriate

arrangement or by a cover. Sealing by sealing edge. For the locating hole, the sealing surface must

be at right angles to the thread, flat and not hardened.

Order

no.

Article no. A B C dia. E

G

K x depth L O P +1 SW1 SW2 U min. dia. Y

60004

6933-05 25 6 15

8

M20x1,5 M4x10 46 3

12

24

6

30

29

60012

6933-08 34 6 18 10 M24x1,5 M5x12 58 3

15

27

8

34

33

60020

6933-12 34 6 21 12 M30x1,5 M6x14 61 3

18

36

9

44

43

60038

6933-20 35 8 23 16 M36x1,5 M8x17 66 3

20

41

13

50

49

61176

6933-32 35 9 25 16 M42x1,5 M8x17 69 3

22

50

13

61

60

Dimensions:

Order

no.

Article no.

Push force at 100

bar

[kN]

Push force at 500

bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston dia.

[mm]

Piston area

[cm²]

Md max.

[Nm]

Spring force min.

[N]

Weight

[g]

60004

6933-05

1,1

5,5

8

0,9

12

1,1

90

35

120

60012

6933-08

2,0

10,0

10

2,0

16

2,0

110

70

200

60020

6933-12

3,0

15,0

10

3,1

20

3,1

120

115

370

60038

6933-20

5,0

24,5

12

5,9

25

4,9

130

160

510

61176

6933-32

8,0

40,0

12

9,6

32

8,0

150

240

750

No. 6933

No. 6932

CAD

background image

58

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

threaded Cylinder

Single acting, with spring return,

max. operating pressure 350 bar.

Threaded Cylinder bottom sealing

No. 6934

Design:

Cylinder barrel from steel, hardened and burnished. Piston and piston rod case hardened and

ground. Piston rod spherical or with internal thread. Wiper at piston rod. Return spring from stainless

steel. Oil supply via oil channel in fixture body.

Application:

Threaded cylinders are designed for space saving installation at fixtures. Universal clamping cylinder

for clamping, pushing, locking and positioning.

Features:

Small dimensions, can be installed closely spaced side-by-side.

Note:

The cylinders must not be loaded in retracted position. The cylinders must be protected against direct

access of lubricants and coolant. The system has to be completely vented during installation.

Order

no.

Article no. dia. A B D E

F

G

SW J x depth  K dia. L

DI-1

Cu seal

Order No.

DI-1

Plastic seal

Order No.

68312

6934-02

4,5 28,0 5 17,5 0,5 M16x1,5 13

-

6,5 13,5 554568

554567

68338

6934-04

6,5 37,0 5 25,0 1,5 M20x1,5 16

-

6,5 16,5 554570

554569

68353

6934-10-1 12,5 34,5 8 15,5 1,5 M28x1,5 22

-

19,0 23,0 554572

554571

68379

6934-10-2 12,5 61,5 8 15,5 1,5 M28x1,5 22 M6x11,0

-

23,0 554572

554571

68395

6934-17 16,0 37,5 8 19,0 2,5 M35x1,5 27 M6x12,5

-

31,0

-

554573

Dimensions:

Installation dimensions:

Installation dimensions:

Order

no.

Article no.

G

ØBB ±0.15

ØCC ±0.13

dia. DD

EE

68312

6934-02

M16x1,5

14,5

13,8

8,0

4

68338

6934-04

M20x1,5

18,5

16,8

9,5

4

68353

6934-10-1

M28x1,5

26,5

23,4

16,0

7

68379

6934-10-2

M28x1,5

26,5

23,4

16,0

7

68395

6934-17

M35x1,5

33,5

31,2

22,0

7

Order

no.

Article no.

Push force at 100

bar

[kN]

Push force at 350

bar

[kN]

Stroke C

[mm]

Vol.

[cm³]

Piston area

[cm²]

Md

CU seal

[Nm]

Md

Plastic seal

[Nm]

Weight

[g]

68312

6934-02

0,68

2,4

5,0

0,3

0,7

40

20

27

68338

6934-04

1,25

4,4

6,5

0,8

1,3

54

30

54

68353

6934-10-1

2,88

10,1

9,5

2,7

2,9

68

35

95

68379

6934-10-2

2,88

10,1

19,0

5,5

2,9

68

35

191

68395

6934-17

5,00

17,5

8,0

4,0

5,1

50

50

159

CAD

background image

Subject to technical alterations.

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

59

>

piston with internal thread

>

for push- and pull operation

>

with longitudinal and cross bores and perpendicular

support groove

>

wipers to protect against contamination

>

single and double-acting variants

>

oil supply via O-ring

>

oil supply via threaded port

At continuous pressures below 80 bar, this must be stated

on ordering as a different seal combination may need to be

selected.

prOduCt exampleS:

no. 6926

no. 6926d

no. 6936d

>

Clamping force: 10 - 155,5 kN

>

Two mounting versions

>

Two strokes

>

Clamping force: 10 - 251,5 kN

>

Two mounting versions

>

Three strokes

>

Clamping force: 10,1 - 39,9 kN

>

Two mounting versions

>

Three strokes

prOduCt OVerView:

Type

Clamping force

[kN]

Pull force

[kN]

Clamping

stroke

[mm]

max. operating

pressure

[bar]

No. of models

Operating mode

6926

10 - 155,5

-

8 - 25

500

28

single acting

6926D

10 - 251,5

6 - 153

16 - 100

500

111

double acting

6936

10,1 - 39,9

-

6,5 - 51

350

7

single acting

6936D

10,1 - 39,9

5,6 - 17,5

6,5 - 51

350

8

double acting

blOCk CylinderS

fOr VariOuS deSign

appliCatiOnS

background image

60

Hydraulic clamping SyStemS

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Subject to technical alterations.

block Cylinder

single acting, spring return,

max. operating pressure 500 bar.

Block Cylinder

No. 6926

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Wiper at

piston rod. Piston rod with internal thread. Oil supply via threaded port.

Features:

Universal mounting by means of mounting holes. Each cylinder size is available with two different

strokes.

Note:

For single acting cylinders there is risk of sucking in coolant during return stroke. In this case the

sinter metal breather shall be piped to a clean, protected area. Further sizes are available on request.

For applications above 160 bar operating pressure, cylinders must be tenon-blocked at slot or being

backed up at cylinder body. For fixing screws must be strength class 12.9.

All tolerances other than specified refer to DIN ISO 2768 medium.

On request:

Special sizes are available on request.

Dimensions:

Order

no.

Article no.

A

B

C

dia. E

L

M

N x depth

Q

R

S

U

dia. W

Z

63354

6926-8-001

60

56

35

10

6

11

M6x12

40

G1/4

8

22

6,5

17

63362

6926-8-002

60

91

35

10

6

11

M6x12

40

G1/4

8

22

6,5

17

63370

6926-12-001

60

61

35

14

7

11

M8x15

40

G1/4

10

22

6,5

17

63388

6926-12-002

60

95

35

14

7

11

M8x15

40

G1/4

10

22

6,5

17

63396

6926-20-001

65

64

45

16

7

11

M10x15

50

G1/4

13

30

8,5

18

63404

6926-20-002

65

94

45

16

7

11

M10x15

50

G1/4

13

30

8,5

18

63412

6926-32-001

75

75

55

20

10

11

M12x15

55

G1/4

17

35

10,5

22

63420

6926-32-002

75

100

55

20

10

11

M12x15

55

G1/4

17

35

10,5

22

63438

6926-50-001

85

79

63

25

10

11

M16x25

63

G1/4

22

40

10,5

24

63446

6926-50-002

85

104

63

25

10

11

M16x25

63

G1/4

22

40

10,5

24

63453

6926-78-001

100

90

75

32

10

13

M20x30

76

G1/4

27

45

13,0

27

63461

6926-78-002

100

115

75

32

10

13

M20x30

76

G1/4

27

45

13,0

27

63479

6926-125-001

125

102

95

40

14

17

M27x40

95

G1/4

36

65

17,0

26

63487

6926-125-002

125

122

95

40

14

17

M27x40

95

G1/4

36

65

17,0

26

Order

no.

Article no.

Push force at 100 bar

[kN]

Push force at 500 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston dia.

[mm]

Piston area

[cm²]

Spring force min.

[N]

Weight

[g]

63354

6926-8-001

2,0

10,0

8

1,6

16

2,0

50

840

63362

6926-8-002

2,0

10,0

20

4,0

16

2,0

50

1370

63370

6926-12-001

3,1

15,5

8

2,4

20

3,1

70

920

63388

6926-12-002

3,1

15,5

20

6,2

20

3,1

70

1420

63396

6926-20-001

5,0

25,0

8

4,0

25

5,0

140

1250

63404

6926-20-002

5,0

25,0

20

10,0

25

5,0

140

1870

63412

6926-32-001

8,0

40,0

10

8,0

32

8,0

195

2060

63420

6926-32-002

8,0

40,0

20

16,0

32

8,0

195

2740

63438

6926-50-001

12,5

62,5

10

12,5

40

12,5

270

2830

63446

6926-50-002

12,5

62,5

20

25,0

40

12,5

270

3730

63453

6926-78-001

19,6

98,0

12

23,5

50

19,6

410

4430

63461

6926-78-002

19,6

98,0

20

39,2

50

19,6

410

5670

63479

6926-125-001

31,3

155,5

12

37,3

63

31,1

430

9500

63487

6926-125-002

31,3

155,5

25

77,75

63

31,1

430

9540

Threaded plug with

silver-bronze filter

CAD

background image

ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de

Hydraulic clamping SyStemS

61

Subject to technical alterations.

block Cylinder

single acting, spring return,

max. operating pressure 500 bar.

Block Cylinder

No. 6926

Design:

Cylinder barrel from steel, burnished. Piston and piston rod case hardened and ground. Wiper at

piston rod. Piston rod with internal thread. Oil supply via threaded port.

Features:

Universal mounting to fixtures by means of mounting holes. Each cylinder size is available with two

different strokes.

Note:

For single acting cylinders there is risk of sucking in coolant during return stroke. In this case the

sinter metal breather shall be piped to a clean, protected area. For applications above 160 bar

operating pressure, cylinders must be tenon-blocked at slot or being backed up at cylinder body. For

fixing screws must be strength class 12.9.

All tolerances other than specified refer to DIN ISO 2768 medium.

On request:

Special sizes are available on request.

Dimensions:

Order

no.

Article no.

A

B

C

dia. E

F

L

M

N x depth

Q

R

S

dia. W

X

Y

Z

63511

6926-8-003

60

56

35

10

30

6

11

M6x12

40

G1/4

8

6,5

2

8

17

63529

6926-8-004

60

91

35

10

30

6

11

M6x12

40

G1/4

8

6,5

2

8

17

63537

6926-12-003

60

61

35

14

30

7

11

M8x15

40

G1/4

10

6,5

2

8

17

63545

6926-12-004

60

95

35

14

30

7

11

M8x15

40

G1/4

10

6,5

2

8

17

63552

6926-20-003

65

64

45

16

33

7

11

M10x15

50

G1/4

13

8,5

2

10

18

63560

6926-20-004

65

94

45

16

33

7

11

M10x15

50

G1/4

13

8,5

2

10

18

63578

6926-32-003

75

75

55

20

38

10

11

M12x15

55

G1/4

17

10,5

3

12

22

63586

6926-32-004

75

100

55

20

38

10

11

M12x15

55

G1/4

17

10,5

3

12

22

63594

6926-50-003

85

79

63

25

40

10

11

M16x25

63

G1/4

22

10,5

3

12

24

63602

6926-50-004

85

104

63

25

40

10

11

M16x25

63

G1/4

22

10,5

3

12

24

63610

6926-78-003

100

90

75

32

44

10

13

M20x30

76

G1/4

27

13,0

5

16

27

63628

6926-78-004

100

115

75

32

44

10

13

M20x30

76

G1/4

27

13,0

5

16

27

63636

6926-125-003

125

102

95

40

50

14

17

M27x40

95

G1/4

36

17,0

5

20

26

63644

6926-125-004

125

122

95

40

50

14

17

M27x40

95

G1/4

36

17,0

5

20

26

Order

no.

Article no.

Push force at 100 bar

[kN]

Push force at 500 bar

[kN]

Stroke H

[mm]

Vol.

[cm³]

Piston dia.

[mm]

Piston area

[cm²]

Spring force min.

[N]

Weight

[g]

63511

6926-8-003

2,0

10,0

8