LiftMaster MJ5011 Medium Duty Jackshaft Operator - 1/2 HP

The LiftMaster MJ model is a jackshaft-style door operator designed for commercial sectional doors and small rolling steel doors or grilles. Ideal for mid-range duty cycles, it’s the perfect solution for smaller, lighter commercial applications that still demand reliable, everyday performance.

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Choose your options from the drop downs above get the operator to suite your needs. 

• Door Type: Sectional or Rolling
• Shaft & Keyway Size: 1" Shaft & 1/4" Keyway or 1-1/4" Shaft & 1/4" Keyway
• Door Height (round up to nearest foot): 12-16 feet or 18 feet

What's Included:

• 02-103L 3-Button Station for simple open/close/stop control

• CPS-U Commercial Photo Eye safety sensors (standard; upgrade options available)

The following Configuration Options is a STOCK ITEM & SHIPS the following business day.

• Door Type: Sectional
  

• Shaft & Keyway Size: 1" Shaft - 1/4" Keyway

• Door Height: 12–16 ft
  

Need a high-lift setup? Contact our support team for custom orders.

All other configurations besides the one listed above are made to order and ship in 10–14 business days.