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Commercial Garage Door Openers

LiftMaster Garage Door Opener Jackshaft Style Operator J

Jackshaft (J) Style Operator


Jackshaft (J) style commercial door operators are optimal for industrial applications. Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.

  • Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
  • Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
  • Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
  • Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
  • Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
  • Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
  • Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
  • Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
  • Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
  • 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
  • Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.
  • 5V DC NEC Class 2.
  • First-stage heavy-duty 5L V-belt; second-third-fourth stages #48 chain; #50 output sprocket chain.
  • Industrial ball bearings on 1″ output shaft; heavy-duty oil-filled bushings on reduction shafts.
  • Brake standard on 3/4 and 1 HP operators (optional on1/2 HP, not available on 1/3 HP).
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • Two-year warranty.

Trolley (T) Style Operator


T-style trolley commercial door operators are optimal for general industrial applications.

  • Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
  • Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
  • Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
  • Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
  • Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
  • Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
  • Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
  • Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
  • Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
  • 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
  • Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.
  • 5V DC NEC Class 2.
  • First-stage heavy-duty 5L V-belt; second #41 chain; #48 (for 1/3 and 1/2HP) and #41 (for 3/4 and 1HP) output chain on trolley.
  • Industrial ball bearings on output shaft, heavy-duty oil-filled bushings on reduction shafts.
  • Brake Standard on 3/4 and 1 HP operators, (optional on 1/2 HP, not available on 1/3 HP).
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • #48 on 1/3 and 1/2 HP. #41 on 3/4 and 1HP.
  • Two-year warranty.
Hoist Style Operator H

Hoist (H) Style Operator


Hoist (H) style commercial door operators are optimal for industrial applications. H-style operators include a floor level chain hoist to ease manual operation in an emergency or power outage.

  • Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.
  • Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.
  • Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.
  • Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.
  • Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.
  • Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.
  • Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.
  • Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.
  • Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.
  • 3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/3, 1/2, 3/4 and 1 HP; single- or three-phase. Capacitor start on single-phase. Removable without affecting limit switch settings.
  • Operators are factory preset to C2 wiring, providing momentary contact to open and stop, with constant contact to close.
  • 5V DC NEC Class 2.
  • First-stage heavy-duty 5L V-belt; second-third-fourth stages #48 chain; #50 output sprocket chain.
  • Industrial ball bearings on 1″ output shaft, heavy-duty oil-filled bushings on reduction shafts.
  • Brake standard on 3/4 and 1 HP operators. (optional on 1/2 HP; not available on 1/3 HP).
  • NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.
  • Two-year warranty.
Medium Duty Trolley Operator MT

Medium Duty Trolley Operator (MT)

for Standard Lift Sectional Doors


The Model MT Medium Duty Trolley Operator is designed for use on standard lift sectional doors up to 14 feet high and up to 12 cycles per hour.

  • 115 volt 1 ?.
  • Apply Open/Close/Stop functions with the standard three-push-button control station. Controls with one, two and three buttons are available.
  • Receive notifications when routine maintenance is required on your Commercial Door Operator.
  • Improve durability with the NEMA 1 type electrical box construction with a powdercoat finish.
  • Heavy-duty, oil-filled bushings.
  • Enable limit setting for ease of installation and adjustment to ensure accuracy even after a power failure.
  • Automatically close the door with Timer-To-Close (programmable in 1-second or 15-second increments).
  • Ensure peace of mind with a LiftMaster® two-year warranty.
Medium Duty Hoist Operator MH

Medium Duty Hoist Operator (MH)


The Model MH Medium Duty Hoist Operator is designed for use on small rolling doors, grilles and industrial sectional doors with high or vertical lift.

  • 115 volt 1 ?.
  • With Open/Close/Stop functions, the three push-button control station is standard for all operators. Controls with one, two and three buttons are available.
  • Maintenance Alert System provides notifications when routine maintenance is required on your Commercial Door Operator.
  • With a powder-coated finish, the NEMA Type 1 electrical box construction is durable enough for most applications.
  • Heavy-duty, oil-filled bushings.
  • Mounts on the left or right side of the door. No rails to hang—the Door Operator simply mounts on the wall and attaches to the door shaft through chain and sprocket.
  • Door Operator electromechanical limit system enables ease of installation and adjustment to ensure accuracy, even after a power failure.
  • Programmable in one-second or 15-second increments, Time-to-Close automatically closes the door.
  • Ensure peace of mind with a LiftMaster two-year warranty.

Slow-Speed Hoist Operator (MHS)

For Rolling Sheet Doors


The Model MHS Hoist Operator is designed for use on rolling sheet doors. It features an adjustable friction clutch, high-starting torque motor with overload protection, emergency chain hoist with electric interlock, and emergency disconnect chain.

  • 115 volt 1 ?.
  • With Open/Close/Stop functions, the three push-button control station is standard for all operators. Controls with one, two and three buttons are available.
  • Maintenance Alert System provides notifications when routine maintenance is required on your Commercial Door Operator.
  • With a powder-coated finish, the NEMA Type 1 electrical box construction is durable enough for most applications.
  • Heavy-duty, oil-filled bushings.
  • Mounts on the left or right side of the door. No rails to hang—the Door Operator simply mounts on the wall and attaches to the door shaft through chain and sprocket.
  • Door Operator electromechanical limit system enables ease of installation and adjustment to ensure accuracy, even after a power failure.
  • Programmable in one-second or 15-second increments, Time-to-Close automatically closes the door.
  • Ensure peace of mind with a LiftMaster two-year warranty.

Medium Duty Jackshaft Operator (MJ)


The Model MJ Door Operator is designed for use on industrial sectional doors with high or vertical lift and on small rolling doors and grilles. Maximum recommended duty cycle: 12 cycles per hour.

  • 115 volt 1 ?.
  • Apply Open/Close/Stop functions with the standard three-push-button control station. Controls with one, two and three buttons are available.
  • Receive notifications when routine maintenance is required on your Commercial Door Operator.
  • Improve durability with the NEMA 1 type electrical box construction with a powdercoat finish.
  • Mount on the left or right side of the door. No rails to hang, the operator simply mounts on the wall and attaches to the door shaft through chain and sprocket. (3900 can mount directly to shaft)
  • Enable limit setting for ease of installation and adjustment to ensure accuracy even after a power failure.
  • Automatically close the door with Timer-To-Close (programmable in 1-second or 15-second increments).
  • Ensure peace of mind with a LiftMaster® two-year warranty.

Medium Duty Gear-Reduced Jackshaft Operator (MGJ)

for Rolling Grilles and Shutters


The Model MGJ Door Operator is designed for use on industrial sectional doors with high or vertical lift and on small rolling doors and grilles. Maximum recommended duty cycle: 12 cycles per hour.

  • 115 volt 1 ?.
  • Drive Reduction is a heavy-duty, wormgear-in-oil-bath speed reducer.
  • Apply Open/Close/Stop functions with the standard three-push-button control station. Controls with one, two and three buttons are available.
  • Receive notifications when routine maintenance is required on your Commercial Door Operator.
  • Improve durability with the NEMA 1 type electrical box construction with a powdercoat finish.
  • Sealed roller bearings in gear reducer.
  • Mount on the left or right side of the door. No rails to hang, the operator simply mounts on the wall and attaches to the door shaft through chain and sprocket. (3900 can mount directly to shaft)
  • Enable limit setting for ease of installation and adjustment to ensure accuracy even after a power failure.
  • Automatically close the door with Timer-To-Close (programmable in 1-second or 15-second increments).
  • Ensure peace of mind with a LiftMaster® two-year warranty.