1.Synchronous Motor,pull the big curtain up to 100kgs ... need to set up in advance.3. The motor with clutch inside for easy control the curtain by ... straight and bend shape, the maximal width of one motor is 8m6. Wireless control, infrared control, manual ... switch and group control can be achieved. Motor Item number PowerTransmission ratioInput speedOutput speedDesign loadMaximum lengthA Type12010 ...