These electrically interlocked heavy-duty shields are for lathe chucks. When the lathe chuck shield is lifted up, the positive contacts on the microswitch open, sending a stop signal to the machine control. The safety mircroswitch electrical wires are furnished with a protective sheath and connect to the safety circuit of the machine that switches off the control to the movement of the chuck. All safety microswitches are mounted in an enclosed housing with an enclosure rating of IP 67.

They have a thermo-formed shield made from high impact-resistant, transparent polycarbonate that protects operators from direct contact with the upper portion of the rotating chuck. The shields, in tubular-steel frames, are attached with a steel clamp to a support arm that rotates 90° and operates the safety microswitch.

These electrically interlocked lathe chuck shields are available in several sizes. A handle is furnished for lifting the shield up and out of the way for easy access to the workpiece and for changing chucks.