LiftMaster Door Openers

Medium Duty Trolley Operator for Standard Lift Sectional Doors

Medium Duty Trolley Operator for Standard Lift Sectional Doors

Model MT is a Medium-Duty Logic trolley operator for standard lift sectional doors. It features a high-starting torque motor, a compact design, quick-gliding rail spacers and a quick-mount swivel header bracket.

Industrial-Duty Trolley Operator for Standard Lift Sectional Doors

Industrial-Duty Trolley Operator for Standard Lift Sectional Doors

Model T is an industrial-duty trolley operator for standard lift section doors. It features a low profile and industrial ball bearings on the output shaft.

Heavy Industrial-Duty Trolley Operator

Heavy Industrial-Duty Trolley Operator

Model GT is a heavy industrial-duty trolley operator for standard lift sectional doors. It features a continuous-duty high-starting torque motor, quiet-gliding rail spacers, a quick-mount swivel header bracket and a removable hinged electrical box cover.

Light-Duty Commercial Jackshaft Operator for Sectional Doors

Light-Duty Commercial Jackshaft Operator for Sectional Doors

Model 3900 is a light-duty jackshaft operator for light-duty commercial sectional applications only. It features a compact design ideal for limited height, cathedral, or obstructed ceiling installations. It may be used on standard and high-lift (maximum 7 ft. high-lift) sectional doors measuring up to 14 ft. high and up to 18 ft. wide, but not exceeding 180 sq. ft. or 650 lbs.

Medium-Duty Jackshaft Operator

Medium-Duty Jackshaft Operator

Model MJ is a Medium Duty Logic jackshaft operator. It features a compact design, an adjustable friction clutch, a standard solenoid brake and a high-starting torque motor.

Industrial Duty Jackshaft Operator

Industrial Duty Jackshaft Operator

Model J is an industrial-duty jackshaft operator. It features a removable hinged electrical box cover, a continuous-duty high-starting torque motor, industrial ball bearings on the output shaft and a universal mount frame design.