Options diagrams for choosing the required torque for a roller shutter

The options diagrams shown here enable users to ascertain the required torque for a tube motor. If your results are in the overlap area for the next most powerful motor you are advised to choose the more powerful version.

The shown weights are pure shutter-weights (friction is considered and included in the chart).

For shutters divided into two sections the weight increases by approx. 15 % depending on friction.

These depend on different factors.

Therefore, for awnings the right motor type is subject of tests of the producer of awnings.

The following average dates may be a clue:  

no. of arms

length of installation

motor type

26 m50 / 20
48 m50 / 30
412 m50 / 40
615 m60 / 55
815 m60 / 75