Base: Cast steel, black powder coat paint finish
Other parts: Steel St. 60, zinc plated,
blue passivated finish
Bearing bolts case-hardened
Double-action air cylinder, maximum operating pressure 6
All mobile sections lubricated with special grease
GN 863 heavy duty pneumatic lock-down toggle clamps have been constructed in such a way as to make them easy to unmount: The bearing pins are axially fixed with circlips. This allows the clamping arm to be modified once it is dismantled, to suit any particular application.
To ensure an extended life of the mechanical parts as well as air cylinder, the operating pressure should not exceed 6 bar. In addition a lubrication control unit should be mounted in the air in-feed line.
These clamps have a magnetic piston. In conjuction with a GN 896.3 proximity switch, the piston position is sensed and the generated signal can be used in sequence control systems.
See also General Information on Toggle Clamps.