|Body: Steel, zinc plated, blue passivated
Lever arm: Plastic (technopolymer), matte black, non-removable
Plunger pin: Steel, nitrided
Jam nut: Steel, zinc plated, ISO 8675
Plastic sleeve: Matte black technopolymer plastic (Polyamide PA), not removable
||GN 712.1 cam action indexing plungers are used in applications where the plunger has to protrude only occasionally. When the cam is turned by 90 or 120 degrees in a clockwise direction, the plunger is moved through a curved opening in the body. Then, the plunger is protruding.
Depending on the type, the plunger is moved back by a spring in its original position (Type A), is held in a protruding position (Type R), or is secured against accidental operation (Type S).
In order to move the plunger, Type S safety version requires an additional lifting of the lever.
Each version has its advantages as follows:
Type A/AK: After turning the lever clockwise 90 degrees to protrude the plunger pin, releasing the lever allows the plunger pin via the spring to retract automatically.
Type R/RK: After turning the lever clockwise 120 degrees to protrude the plunger pin, there is a rest position for the guide pin that holds, via the spring, the protruding plunger pin in place. Turning the lever counter-clockwise releases the plunger pin to its normal retracted position.
Type S/SK: After turning the lever clockwise 120 degrees to protrude the plunger pin, there is a secure rest position for the guide pin holding the protruding plunger pin, via the spring, in place. Pushing down, turning the lever counter-clockwise and releasing the lever allows the plunger pin to retract to its normal position.
Stainless steel versions available upon request.