RMA 20: Steel teeth – the long-life tube motor

The RMA 20 tube motor: Thanks to a steel gear unit and a fully-developed motor pack, this ­delivers great reliability and long service life.

  • Torques of 50 Nm and 120 Nm.
  • 2 years of warranty, Made in Germany.
  • Compact design with zero-maintenance and quiet-running gear components.
  • Variable cable output in two different directions.
  • 60 Hz versions cURus certified.
    (cURus = UL Recognized Component Mark for USA and Canada)
Lock drive system RMA


We did not invent the tube motor, but we did turn it into a Lock product


The RMA 20 is used to drive roller sheeting systems such as internal shading, partition walls or rolling systems. 

Lock EazyVent RMA 20


Lock RMA20 for EazyVent ventilation

Example: RMA 20, 120 Nm
With our low-cost rolling system, our RMA 20 tube motor is an interesting alternative form of drive. By fitting various adapters, the RMA 20 can be integrated flexibly in the system.

Lock rolling rube RMA

Roller sheeting

Lock roller sheeting for RMA20

Example: RMA 20, 50 Nm
With the factory-fitted aluminium tube, it is easy to fit any standard 50 mm or 63 mm winding tubes: integration in the rolling system is an easy task.