Liftmaster/Chamberlain Genuine Part 3950 Rolling Sheet Door Operator Description
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.