MJ Medium-Duty Jackshaft Operator
LiftMaster Opener
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. Features: Powerful 1/2 HP motor, primary monitored entrapment protection, wall-mount to the left or right side of the door, Open/Close/Stop functions with the standard three-push-button control station, Timer-to-Close and readily accessible disconnect for emergencies.
