Liftmaster Operators

Model APT is a low-profile apartment house operator that features a resilient-mount motor, low-profile design, industrial ball bearings on the output shaft, and quiet-gliding rail spacers.
Model ATS is an advanced trolley system light-duty trolley operator. It features an automatic safety reverse and door stop, a maximum run timer, a heavy-duty “I-beam” configured trolley track, and an auto-reconnect trolley.
Model GT is a heavy industrial-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, quicket-gliding rail spacers and a quick-mount swivel header bracket.
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.
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.
Model 3950 is a jackshaft operator for commercial rolling sheet door applications. It features a compact design ideal for public, boat, and RV storage facilities.
Model LGJ is a light-duty gear-reduced jackshaft operator for rolling grilles and shutters. It features an internal door lock sensing circuit, a compact design and a floor level disconnect.
Model MGJ is a Medium-Duty Logic gear-reduced jackshaft operator for rolling grilles and shutters. It features a compact design, a floor level disconnect, a high-starting torque motor and a heavy-duty wormgear reducer.
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.
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 ouput shaft and a universal mount frame design.
Model DJ is an industrial-duty jackshaft operator with an internal door lock sensor. 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.
Model DH is an industrial-duty jackshaft operator with an internal door lock sensor. It features a removable hinged electrical box cover, a continuous-duty high-starting torque motor, a universal-mount frame design, and an emergency chain hoist with electric interlock.
Model MH is a Medium-Duty Logic hoist operator. It features an adjustable friction clutch, a standard solenoid brake, a high-starting torque motor, a compact design and an emergency chain hoist with an electric interlock.
Model H is an industrial-duty hoist operator. It features a continuous-duty high-starting torque motor, a universal-mount frame design, industrial ball bearings on the output shaft and an emergency chain hoist with an electric interlock.
Model HJ is an industrial-duty hoist/jackshaft operator for use on rolling doors, grilles, and industrial sectional doors with high or vertical lift.
Model DHJ is a industrial-duty hoist/jackshaft operator with internal door lock sensor for use on rolling doors and grilles.
Model GH is a heavy industrial-duty gear-reduced hoist operator. It features a removable hinged electrical box cover and is easily field-converted in seconds for a left or right-handed drive and hoist.
Model GH5HP is a heavy industrial-duty gear-reduced hoist operator. It features a continuous-duty 5 HP brake motor, removable hinged electrical box cover and a specially-designed manual hoist gear system.
Model MHS is a slow-speed hoist operator for use on rolling sheet doors. It features Medium-Duty Logic technology and provides easy emergency manual operation using a floor level disconnect or an electrically interlocked chain hoist.