Solenoid interlock with three-point locking

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Schmersal has developed a new solution for the protection of large safety guards.

This solution is based upon the modular system of the AZM 200 solenoid interlock, which uses a Schmersal-patented operating principle for the non-contact detection of the interlock status and the safety guard position.

Many machine builders are among the users of the AZM 200, who use this solenoid interlock on large safety guards. The use of this lock is suitable in many applications but especially so for double-leaf doors — a system which requires a higher level of mechanical stability, which also has the added advantage of offering protection in the highly unlikely event of larger work pieces being ejected out of the machine.

For those applications requiring a much higher level of physical protection, Schmersal now has developed a variant of the AZM 200, which offers additional locking bars compared to the basic model. These bars are retracted or extracted when the door-handle is operated and engages in the upper and lower side of the guard door frame. In this way, a stable three-point locking is ensured when the safety guard is in the closed position.