Liftmaster 3950 Jackshaft Door Operator for Commercial Rolling Sheet Door Applications

The model 3950 door operator is designed for commercial rolling sheet door applications only – ideal for self-storage facilities. It may be used on commercial rolling sheet doors with live or dead shaft measuring up to 12 ft. High and up to 14 ft. Wide but not exceeding 650 lbs. Maximum recommended duty cycle 10 cycles per hour.