MG Series

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The MG SERIES - Extra heavy-duty gearhead jackshaft commercial door operator (for vertical or high lift sectional doors and rolling steel curtain doors) series, chain hoist and floor level disconnect, available in 1/2, 3/4, 1, 1-1/2, and 2 horsepower, various supply voltages and phases. Not to exceed 35 cycles per hour, 150+ cycles per day.

Part Number: MG Series

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  • Solid state control circuit
  • Constant pressure required to close if no entrapment devices are installed
  • Oil bath gear reduction unit
  • Chain hoist with electrical interlock
  • #50 Chain and sprocket, 1/2 - 1 HP
  • #60 Chain and sprocket, 1-1/2 - 2HP
  • Solenoid brake standard
  • TEFC Motor standard on single phase 1 HP and over, and all 3 phase operators
  • Motor overload protection
  • Wired to accept reversing devices
  • Internally adjustable limit switches
  • 24-Volt control circuit with OPEN, CLOSE and STOP 3-button station
  • OPEN button (and single button) will automatically override down travel and reverse door to the full open position
  • External terminals for single button (residential type) radio control
Warranty 2 yrs
Max. Duty Cycle 35 cycles per hour, 150+ cycles per day
Max. Door Height 24 ft.
Model HP Voltage & Phase Drive Type Manual Disconnect Max Door Height
MO5011 1/2 115V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO5021 1/2 230V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO5023 1/2 230V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO5043 1/2 460V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO7511 3/4 115V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO7521 3/4 230V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO7523 3/4 230V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO7543 3/4 460V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO10011 1 115V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO10021 1 230V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO10023 1 230V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO10043 1 460V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO15011 1.5 115V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO15021 1.5 230V 1P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO15023 1.5 230V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO15043 1.5 460V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO20023 2 230V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft
MO20043 2 460V 3P Jackshaft Chain hoist with interlock and Floor level disconnect 24 ft