Parker Hydraulic Group
HTR Heavy Duty Hydraulic Rotary Actuator


  • Tapered Roller Bearings
  • Ductile Iron Housing
  • SAE Side Ports
  • Wear-Pak® Pistons and Seals
  • Chrome Alloy Steel Pinion and Rack Gears

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Standard rotations: 90°, 180°, 360°

The HTR Series actuators have been successfully employed in automotive plant production machinery; machine tool equipment; plastics and rubber processing machinery; basic metals production machinery and in material handling machinery. 

Maximum Operating Pressure: 3000 psi (207 Bar) non-shock; except HTR22/45, 2000 psi (138 Bar) non-shock

Rotational Tolerance: -0°, +2°

Output Torques: 900 to 600,000 lb-in @ 3000 psi (204 Bar)

Maximum Breakaway Pressure: 70 psig (4.8 Bar)

Mounting Orientation: Unrestricted

Operating temperature range:

  • Nitrile Seals -40 to 180°F (-40 to 82°C)
  • Fluorocarbon Seals -20 to 250°F (-29 to 121°C)

Standard Timing: Keyway in 12:00 Position at Midstroke

Recommended Filtration: ISO Class 17/14 or Cleaner