Commercial limited duty belt drive Jackshaft with emergency chain hoist

Designed for use on commercial sectional doors with high or vertical lift track and small rolling grilles that require no more than 15 cycles per hour.



  • 24V class 2 control circuit with 40VA transformer to protect against short circuit
  • External radio control terminal strip
  • Low friction powder metal limit cam nuts with fully adjustable rotary type
    limit switch assembly
  • Three button open-close-stop control station Nema-1
  • 1/2 HP high starting torque, instant reversible motor protected by internal
    automatic thermal overload device
  • Heavy duty 4LV-belt
  • #41 roller chain and sprockets on all internal drives
  • Adjustable friction clutch
  • 3/4″ permanently lubricated and sealed ball bearings on pulley shaft
  • 1″ permanently lubricated and sealed bearings on final drive shaft
  • Solenoid brake standard
  • Emergency chain hoist with electrical cut-out switch for manual operation
  • Chain keeper
  • #41 roller chain and sprockets on final drive
  • Left or right hand mounting(must specify at time of order)
  • Baked on dark grey coat finish
  • Shipping wight 70 lbs
Circuit options



  • Heavy duty reversing contactor with mechanical and electrical interlock incorporating the UL325(2010)interface module.
  • C2 factory wiring standard(constant pressure close),B2 wiring can be field set by moving 1 jumper and installing Micanan monitored fail safe photo-eyes (supplied) or (optional) Micanan compatible monitored fail safe electric edge


  • Heavy duty relays(Not available in US or other areas where UL325 (2010)
    is mandated)
  • C2 factory wiring standard(constant pressure close), B2 wiring can be field
    set by moving 1 jumper.Provisions for standard reversing devices.
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