Industrial continuous duty worm gear Jackshaft with emergency chain hoist

Designed for use on all rolling doors and grilles and large sectional doors with high or vertical lift track.



  • 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
  • Continuous duty industrial motor with external reset overload protection
    (1-phase)or external thermal overload relay motor protection(3-phase)
  • Motor removable without affecting limit settings
  • Heavy duty worm gear reduction in oil bath gearbox
  • 1-1/4″ or 1-3/8″ cast iron flanged bearings on gearbox final output shaft
  • Rigid steel wall mounting frame around gearbox
  • 1.5 second time delay on all open functions standard on 1.5, 2 and 3 HP
  • Solenoid brake standard
  • #50 roller chain and sprockets on final drive
  • Emergency chain hoist with electrical cut-out switch for manual operation
  • Chain keeper
  • Universal left or right hand mounting
  • Baked on dark grey coat finish
  • Shipping weight: 125 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


  • Full fonction Smart 10.0 Logic conrol board featuring on-board receiver with antenna, enhanced program selection to include B2,C2, D1, E2, T & TS and supplied with Micanan monitored fail safe photo-cells or (optional) Micanan monitored fail safe electric edge.
  • D1 factory pre-set mode of operation standard (constant pressure open and close)


  • Heavy duty reversing contactor with mechanical and electrical interlock. (Not available in US or other areas where UL325 (2010) is mandated)
  • C2 factory wiring standard, B2 wiring can be field set by moving 1 jumper.
    Provisions for standard reversing devices.
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