LiftMaster Medium-Duty Logic Jackshaft Operator | LIF-MJ5011U

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LiftMasterSKU: LIF-MJ5011U

Sale price$689.00 Regular price$695.57
  • Estimated delivery 2 weeks.

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LiftMaster Medium-Duty Logic Jackshaft Operator | LIF-MJ5011U

The LiftMaster MJ is ideal for small rolling steel doors/grilles and high or vertical-lift sectional overhead doors in medium duty-cycle commercial applications where a manual hoist is not required. Medium-Duty cycles up to 12 cycles/hour and up to 50 cycles/day (using intermittent-rated motor).

Please note

The following options are mandatory to purchase a Commercial Door Operator, any order not containing these options will not be processed:

  • Door Type
  • Chain Kit for Door Height
  • Safety Eye/Edge
  • FREE Digital Multimeter

If you need more information or a custom configuration, please call our technical support team at (800) 730-8382.

This product is a special order only and it is not eligible for returns or refunds.

Make sure to calculate the door area to ensure compatibility*

  • 3-Button Station 02103
  • Brake
  • Operator Speed: 8-9 Inches per second
  • Limit Settings: Mechanical
  • Emergency Disconnect for Manual Operation: Floor-level emergency release sash chain
  • Emergency Disconnect with Auto-Reconnect: Reconnects when tension is removed from the emergency release sash chain
  • Programming: Tactile buttons
  • Circuit Board: Solid-state medium-duty logic circuit board
  • Timer-to-Close: Programmable from 5-60 seconds in 5-second increments
  • Clutch: Standard adjustable friction clutch
  • Motor Operator Wall Control: 3-Button control station
  • Push Button Station: 3-Push button station (Open/Close/Stop)

Installation Features

  • Maximum Door Height: 14 feet standard with additional capability
  • Maximum Door Weight: 22 feet
  • Maximum Allowable Square Footage: 320 square feet
Commercial Door Operator Lifestyle Facility


Medium-Duty Logic programmable integrated circuit board.

Built-In 3-Channel Security+ Receiver:
 - Allows you to learn/program up to 20 LiftMaster 315 MHz remote controls.
 - Recognizes Security+ and dip switch remote controls.
 - Compatible with 3-button, 3-color remote controls for open close/stop operation.


  • Integrated Timer-To-Close (TTC) programmable from 5 to 60 seconds in 5-second increments. Allows for timed automatic door closure after the door reaches the fully open position.
  • Emergency Manual Operation provides easy emergency manual operation using a floor level disconnect and an electrically interlocked chain hoist mechanism.
  • The Commercial Protector System auto-reverses the closing door if an entrapment protection device detects an obstruction.


  • High-starting torque motor with overload protection.
  • Warranty: 2 years

* Please refer at the table below to ensure compatibilityLiftMaster Medium-Duty Jackshaft Operator | All Security Equipment

Product Literature

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