Detailed Product Description About SF92-W Series: SF92-W Electrical Tubular Motorare designed by international advanced technology, with merits of Safe, Compact, Vogue and Effective, adopt side-magnetic brake system. The output torque is from 140N.m to 300N.m. They are widely used for large garage doors for airplane, roller shutters etc. SF92-W Characteristics: SF92-140W 230V/50Hz 140N.M 580W 2.60A 12rpm SF92-180W 230V/50Hz 180N.M 626W 2.80A 12rpm SF92-230W 230V/50Hz 230N.M 830W 3.80A 12rpm SF92-300W 230V/50Hz 300N.M 920W 4.20A 8rpm