Garage Door 4 Less - LiftMaster Jackshaft Garage Door Openers and Operators
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Home >> Garage openers >> Commercial openers >>  LiftMaster Jackshaft Garage Door Openers and Operators
3900 
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.
MGJ 
Medium-Duty Gear-Reduced Jackshaft Operator for Rolling Grilles and Shutters 

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.
MJ 
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.
J 
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 ouput shaft and a universal mount frame design.
DJ 
Industrial-Duty Jackshaft Operator with Internal Door Lock Sensor 
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.



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