Fortress Interlocks has introduced the DMSK into its DM (Door Module) robust modular access interlock range. The DMSK is a stainless steel single door interlock specially designed for hygienic areas and suitable for all types of doors. Its minimal design helps reduce dirt traps while protecting workers from hazardous areas.
As part of an interlock system, DM locks are used to control access to enclosed areas until a safe condition has been achieved. In a typical operation sequence, the key is inserted into the lock and turned; the actuator is disengaged and the door opened. The key remains trapped until the door is closed and the actuator re-engaged; other sequences are available.
The DM module benefits from a revolutionary head design which features a choice of four head rotation angles, with an adjustment of 360° at 90° increments and two actuator entry points.
The head, all internal contact components, actuators and key are constructed using stainless steel. Tested to over 1,000,000 operations, the units have tamper resistant head mechanisms, and require minimal maintenance.
For more information about the DMSK, please visit the company website at