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MEDIUM-DUTY COMMERCIAL DOOR OPERATORS

Ideal for increased door weight and frequency of cycles, LiftMaser medium-duty commercial door operators make a strong addition to any facility.

MGJ

Medium-Duty Gear-Reduced Jackshaft Operator

  • For use on mid-range duty-cycle applications when specifications require a gearhead reducer.
  • Rated duty cycle: Maximum 12 cycles per hour; Less than 50 cycles per day.
  • Wall mount for high or vertical lift sectional doors or small rolling doors and grilles.
  • Floor level disconnect disengages operator for manual lifting in an emergency.

MH

Medium-Duty Hoist Operator

  • For use on smaller, lighter commercial doors with mid-range duty cycle requirements.
  • Rated duty cycle: Maximum 12 cycles per hour; Less than 50 cycles per day.
  • Wall mount for high or vertical lift sectional doors or small rolling doors and grilles.
  • Chain hoist with electric interlock for manual operation in an emergency.

MT

Medium-Duty Trolley Operator

  • For use on standard-lift sectional overhead doors with mid-range duty-cycle requirements.
  • Rated duty cycle: Maximum 12 cycles per hour; Less than 50 cycles per day.
  • Suspends from the ceiling directly attaches and controls a sectional door.
  • Trolley with disconnect disengages operator for manual lifting in an emergency.

MHS

Medium-Duty Slow-Speed Hoist Operator

LiftMaster-MHS-Product-Data-Sheet

  • For use on rolling sheet doors which require slower speeds.
  • Rated duty cycle: Maximum 12 cycles per hour; less than 50 cycles per day.
  • Slow speed operation with electric interlock and chain hoist for manual operation in an emergency.
  • Wall mount for small rolling sheet doors.

MJ

Medium-Duty Jackshaft Operator

  • For use on smaller, lighter commercial doors with mid-range duty-cycle requirements.
  • Rated duty cycle: Maximum 12 cycles per hour; Less than 50 cycles per day.
  • Floor level disconnect disengages operator manual lifting in an emergency.
  • Wall mount for high or vertical lift sectional doors or small rolling doors and grilles.
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