tubular motor Type: SF45-H 10-50Nm Used in curtains, metal rolling doors and windows. With clutch system About SF45-H series:SF45-H series tubular motor are designed by international advanced technology, with merits of Safe, Compact, Vogue, Effective and lower noise, adopt electromagnetic brake system. The output torque is from 10N.m to 50N.m. They are widely used for garage doors, small shutters ...