GN 864 Pneumatic Fastening Clamps Steel, with Horizontal Clamping Arm


GN 864 Steel Pneumatic Fastening Clamps, with Horizontal Clamping Arm Finish: NC - Chemically nickel plated
Finish: NC - Chemically nickel plated
GN 864 Steel Pneumatic Fastening Clamps, with Horizontal Clamping Arm Finish: NC - Chemically nickel plated GN 864 Steel Pneumatic Fastening Clamps, with Horizontal Clamping Arm Finish: FG - Polytetrafluorethylene (PTFE), green

Product description


The maximum clamping moment of pneumatic fastening 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 a nonstick coating of polytetrafluorethylene (PTFE) for protection against welding spray and corrosion. With protective covers GN 864.1, the tensioning mechanism can be protected against penetrating dirt.


Steel C45

  • Chemically nickel platedNC
  • Nonstick coating
    Polytetrafluorethylene (PTFE), greenFG

Max. pressure 10 bar



Protective Covers GN 864.1

Technical drawing

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GN 864 Steel Pneumatic Fastening Clamps, with Horizontal Clamping Arm sketch

Part Options / Table


BLHorizontal clamping arm
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Dimensions in: Inch (change to Metric)
(Piston Ø)
Max. clamping
in Nm
at 6 bar
force at r
at 6 bar
capacity at r
a-0.008d1 -0.001d2d3 +0.001d4d5h1h2
2060499 lbf (2220 N)1580 lbf (7030 N)1.060.3941.102M 50.2760.17M 50.632.01
32150924 lbf (4110 N)2895 lbf (12876 N)1.440.4721.575M 60.3540.20G 1/80.832.97
403001515 lbf (6740 N)3809 lbf (16943 N)1.750.6301.969M 80.4330.27G 1/81.023.60
504752023 lbf (9000 N)5096 lbf (22666 N)2.070.7092.362M 100.5120.33G 1/81.224.49
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Dimensions in: Inch (change to Metric)
l1 -0.02l2l3l4l5m1

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Dead Point Mechanism Operating Principle / Types

Skitzze Funktionsprinzip GN 864

These pneumatic fastening clamps (Patent MISATI) are used for clamping, holding, gripping and positioning of workpieces in jigs and handling systems.

The salient points of these pneumatic fastening clamps are:
• High clamping force
• Small dimensions
• Reduced air consumption
• Light weight

The drawings shown here explain the functional principle of the dead point mechanism as well as the three available types.
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’ clamps.

The pneumatic fastening 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

Total US Dollars (net)
In Stock: 8
In Stock
Please note our quantity discounts (US Dollars).
≥ 25$445.41
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
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)).
Weight: 1.411 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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

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