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LINEAR ACTUATORS This Duff-Norton product line of actuators features load capacities ranging from 27 pounds to 25 Tons, gear or belt driven, acme screw and ball screw systems with various AC and DC input voltages. Duff-Norton Linear Actuators are specially designed for a variety of commercial and industrial applications. These actuators are used for opening and closing, tilting and pivoting, lifting and lowering and positioning. Applications include gates, dampers, oven and processing tank doors, antennas, orthopedic tables and other medical equipment, ergonomic furniture, and agricultural equipment, etc. Custom designs are also available for special applications. Linear Actuators are now being used in place of pneumatics and hydraulics when high maintenance and environmental problems (leaking hydraulic oil) are a concern.

250 lbs
(1,112 N)

300 lbs
(1,332 N)

Acme Screw

IP50 Protection Standard


-20ºF to 120ºF
(-29ºC to 50ºC)

IP50 Protection Standard

Features & Benefits
  • Compact design
  • Belt drive for quiet operation
  • Aluminum housing and outer tube
  • Stainless steel translating tube
  • Double clevis mounting
  • Easy to wire terminal strip (limit switch models)
  • K eyed translating tube
  • Permanent magnet motors - no thermal overload protection

  • Adjustable Limit Switches - Includes control enclosure with fuse
  • Pulse generator for feedback (Add "PTD" prefix)