They can be used for Roman curtains, Venetian curtains and Austrian curtains.
Each cable of each lifting point is rolled up directly onto a tube which rotates on its axis.
Usually the tube:
- is contained in an aluminum trellis with a square section;
- is driven by a motor.
In rectilinear systems the curtain is hung from the trellis itself.
In shaped-plan systems, the curtain is hung from another structure and the curtain lifting cables are diverted by means of pulleys to the motorized winding tube.