Duff-Norton Heavy-duty Linear Actuators


SCW20 Series - 20 Ton

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SPEEDS: Up to 21.6 in/min (9 mm/s)
BRAKE MOTOR: 230/460 VAC, 3 ph, 60 Hz
STROKES: Up to 132 in (3,352 mm)
TEMPERATURE RANGE: 0ºF to 120ºF (-18ºC to 50ºC)
HAZARDOUS RATED MOTOR: (Class 1,Group D and Class 2, Group F & G)


  • Easy to install - reduces installation costs
  • Custom designed for your application
  • Low maintenance design - easy to maintain after installation
  • Long product life expectancy
  • Ball screw or acme screw
  • Ductile iron housing
  • Chrome plated translating tube
  • Adjustable end of stroke limit switches
  • Double clevis mounting


  • Food grade component options available
  • Explosion proof motor and limit switch
  • Product designs for outdoor applications
  • Manual override
  • Other special packages are available upon your application needs


  • Motor rated for Class 1, Group D and Class 2, Groups F & G
  • Limit switches rated for NEMA 7/Class 1, Group D or NEMA 9/Class 2, Groups E, F & G.

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