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Modular Actuators - Rotating Machine Screw


  • Rated loads from 2,000 lbs, depending on actuator gear ratio and motor horsepower
  • Lifting speeds to 170 in/min (varied with load and hp/rpm of motor)
  • Standard travel up to 24 inches (consult Duff-Norton engineering for longer travel options).

Download product overview

Specifications, dimensions and part numbers

Features & Benefits

  • Integral 56 frame, C-face mounting flange
  • Three-piece flexible coupling for easy motor assembly (included)
  • Four threaded holes in base for standard hydraulic cylinder, clevis end accessory attachment. Tapped 1/2 20 UNF-2B
  • Rolled thread lifting screw, with work hardened finish, reduces coefficient of friction between screw and lifting nut. Provides smooth, efficient operation and long service
  • Steel worm and bronze gear set for quiet operation. Available in 5:1 and 20:1 ratios
  • Rugged, lightweight aluminum housing is corrosion resistant
  • Bronze lifting nut for longer life
  • Standard grease fitting on housing for easy lubrication of worm gear
  • Stop-pin at end of lifting screw prevents inadvertent run-off of lifting nut

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