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GN 864 Power Clamps Pneumatic


GN 864 Power Clamps, Pneumatic Finish: NC - Chemically nickel plated
Finish: NC - Chemically nickel plated
GN 864 Power Clamps, Pneumatic Finish: NC - Chemically nickel plated GN 864 Power Clamps, Pneumatic Finish: FG - Polytetrafluorethylene (PTFE), green

Product description


The maximum clamping moment of the power clamps GN 864 is reached once the clamping arm is at the end of its stroke. For this reason the working stroke should be completed as closely as possible to the stroke end.

The type FG is equipped with an anti-stick coating of polytetrafluorethylene (PTFE) for protection against welding spray and corrosion. With protective covers GN 864.1, the tensioning mechanism can be additionally protected against penetrating dirt.


Steel C 45
  • Chemically nickel platedNC
  • Anti-stick coating
    Polytetrafluorethylene (PTFE), greenFG

Max. pressure 10 bar



Protective covers GN 864.1

Technical drawing

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GN 864 Power Clamps, Pneumatic sketch

Article options / Table


BLClamping arm horizontal
Show / Hide columns
max. Clamping
in Nm
at 6 bar

FS in N
force at r
at 6 bar

FH in N
capacity at r
at 6 bar

a-0,2d1 h8d2
d3 H8d4d5h1h2
206022204070271028M 574,2M 51651
321504110562036,51240M 695G 1/82175,5
403006740753044,51650M 8116,8G 1/82691,5
5047590001330052,51860M 10138,5G 1/831114
Show / Hide columns
l1 -0,5l2l3 l4l5m1

Build & Price

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Operating principle dead point mechanism

Skitzze Funktionsprinzip GN 864

These pneumatically operated power clamps (Patent MISATI) are used for clamping, holding, gripping and positioning of work pieces in jigs and handling systems.

The salient points of these power clamps are:
• the high clamping force
• the small dimensions
• the reduced air consumption
• the light weight

The drawings shown here explain the functional principle of the dead point mechanism.

Pistons with diameters of 20, 32, 40 and 50 mm yield a clamping force of 60 Nm up to 475 Nm, which leads to clamping forces being much above those of competitors’ power clamps.

The power clamps have been designed and configured to achieve an extended life. Functional tests have proved that even after 20 million cycles they were still serviceable.

Further salient design points are:

• The clamp is kinematically designed such that self-retention (holding force FH) is achieved in the clamped position (clamping force FS) after passing the dead point due to irreversibility.

• The forward stroke sequence of the clamping arm is rapid but the ultimate clamping action is slow and as a result pneumatic damping is normally not required. Upon request, however, it can be supplied when big masses are moved.

• The clamping mechanism is fitted with needle bearings which give optimum clamping forces and reduced wear.

• The steel cylinder with the integrated clamping mechanism are in one unit. This leads to high stability for these small units with an extended range of applications. The placement of the air connection at the bottom end leads also to many other advantages.

• The clamping mechanism of GN 864 is also shrouded to avoid the ingress of dirt and other objects which could interfere with the proper functioning of the clamps (such as welding operations!)

Selected Part (How to order)

Total (net)
plus VAT 79,71 €
gross 499,26 €
In stock
Weight: 0,640 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 50,00 €
All prices in accordance with our price list No. 53, valid from 1 May 2021, plus VAT only valid for Germany.

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Our Service-Team is available from Monday to Friday from 7:00 until 17:30: +49 7723 6507 - 100

To the customised elements | To the contact persons

GN 864-20-BL-NCGN 864-32-BL-NCGN 864-50-BL-NCGN 864-20-BL-FGGN 864-32-BL-FGGN 864-40-BL-NCGN 864-40-BL-FGGN 864-50-BL-FG

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