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M S J                 JACKSHAFT with Hoist - 25 Cycles / Hour, >80 Cycles / Day
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MSJ fills the gap between regular Jackshaft and Gearheads. This is an Ultra-high end, heavy duty, V-belt drive operator for industrial High and Vertical Lift Sectional Doors or Rolling Doors and Grilles. It can be wall mounted on either side of the door. It incorporates a chain Hoist for manual operation.

Standard Features

  • Chain hoist with electrical cut out
  • Continuous duty motors up to 1 HP
  • 5L V-belt, chain and sprocket reduction
  • #50 Chain on Final Drive
  • Cast iron pillow block bearings on output shaft and clutch shaft
  • Solenoid Brake
  • Adjustable Friction Clutch
  • Output shaft speed: 47 rpm
  • Heavy Duty Reversing Contactor
  • Full Overload Protection
  • C2 Wiring, B2 or D1 can be very easily set
  • Pre-wired for Open Override, Safety Reverse, Radio Control
  • Wall mounted on either side of the door
  • Clearance: side room required is 20"
Main Options: Nema 4/12, Nema 7/9, Spreader, Hoist on left, Delay on Reverse, Timer to Close, Double Limit, Electronic Control Board

Available Documentation

Specification Sheet
Shop Drawing
3-Part Architect Specifications
Installation & Instruction Manual
Exploded View

Electrical Drawings


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Electronic Control Board Specification Sheet
Electronic Control Board Installation & Instruction Manual

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