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Gear Reduced Jackshaft Operator

PowerMaster Model GJ operators are designed for use on rolling service doors, rolling grilles, and counter shutters.

  • High-starting torque motor with full overload protection
  • Worm gear reducer
  • Solid state circuitry with power and program feedback LEDs
  • Onboard open/close/stop buttons for service and adjustments
  • Auto-detect monitored photo beam
  • Floor level disconnect
Cycles Per Hour##
Power Options115V, 230V, 460V
Battery BackupNO
Travel Speed##
Shipping Weight (approx.)65lbs
GJ Line Drawing


Gear Reduced Jackshaft Operator

Specifications & Features

  • Available Horse Power: 1/2 HP
  • Power requirements: 115/230V 1 ph or 208/230/460V 3 ph
  • High Starting Torque Motor w/full overload protection
  • Solid State Circuitry with Power and Program Feedback LEDs
  • Onboard Open/Close/Stop buttons for service and adjustments
  • Terminals labeled and grouped by function
  • Auto-Detect monitored photo beam for simplified installation
  • Selectable Operating modes B2, C2, D1, E2, T, TS
  • Field adjustable built in functions including: timer to close, mid-stop, delay on reverse, lock bar sensing, maximum run time, etc.
  • Floor level disconnect
  • Heavy Duty Worm Gear Reduction
  • Heavy Duty #41 Roller Chain & Driven Sprocket for Final Drive Included
  • Adjustable Torque Limiting Clutch
  • Positive Chain Driven Rotary Limit Switches
  • Baked on, Black Powder Coat Finish
  • Shipping Weight: Approximately 65 lbs
  • Shippiing Dimensions: 27″x16″x18″

Manual / Cut Sheet

Wiring Diagrams

Model Options