Thomson’s self-supporting DMD and DMA lifting columns are height adjustable units designed for a variety of industrial applications such as work tables, conveyors and loaders/unloaders. The rugged and robost columns provide high load torque capability in an extruded anodized aluminum, self-supporting frame. Incorporated into the design is an Electrak actuator in both acme and ball screw versions, with an automatic reset thermal switch to protect the motor. Features: Extruded anodized aluminium column Internally restrained Holding brake on ball screw units Self-locking on acme units Overload clutch for mid/end-stroke protection Auto reset thermal switch motor protection Safety nut on all ball screw models T-slot grooves on entire profile CE Compliant Optional linear potentiometer DMD/DMA Lifting Columns Installation Manual