A42 3-Position Rotary Actuator

Rotomation A42 3-position actuator-extremely configurable, simple to operate to any position from any starting position
A42 3-Position Dual Rack Rotary Actuator


With over 30 times more torque capacity than our A032 3-Position Actuator and billions of standard possible configurations, our A42 three-position actuator has overall dimensions that are similar to those of its two-position counterpart, the A42 Rotary Actuator. Output torque is that of a single rack unit but it can rotate to any of its 3 positions in any sequence by simply activating the proper directional control valve.


  • 3-Position Rotary Actuator
  • Bore Size = 2"
  • Standard Rotations = From 30 to 730 degrees toal
  • Shaft Sizes = Standard: 1.000" dia. or 1.125" dia., Options: D 1.000" dia., D 1.125" dia., & HS .750" I.D.
  • Torque at 80 psi = 277 in-lbs.
  • Ball Bearing Ratings = Radial: 2,020 lbs., Axial: 500 lbs.
  • Port Size = 1/4 NPT
  • Available Options:
    • Adjustable Rotation
    • Cushions
    • Double Ended Shafts
    • Flow Controls
    • Heavy Duty (Aluminum Cylinders, Option A or Steel Cylinders, Option K)
    • Hollow Shaft
    • Washdown Protection
    • Mount Plates
    • Magnetic Switches Installed & Tested Prior To Shipping
    • Bumpers
    • Hydraulic Service Seals
    • Fluorocarbon Seals
    • Fluorocarbon Hydraulic Service Seals

See the A42 3-Position Rotary Actuator Part Number page for detailed configuration and option information.

But if you're looking for precise unidirectional sequential steps, consider our X4 Indexing Actuator.

Compare All 3-Position Rotary Actuators



  • Rotate to any of the 3 positions in any direction and any sequence
  • Extremely configurable to fit your specific needs
  • Floating pistons minimize wear for long cycle life
  • Various rotation angles in almost any combination with flexible reference position
  • Select between 1" or 1-1/8" diameter solid shaft, or 3/4" I.D. hollow shaft
  • Optional magnetic switches in various configurations
  • Optional rotation adjusters, bumpers, cushions, flow controls1

1Only flow controls can affect all positions; other control options affect end positions only.

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