Parker Hydraulic Group
Tork-Mor Rotary Vane Actuator

Tork-Mor Series actuators are produced in eighteen sizes generating up to 145,000 lb-in of torque at rated pressure. Capable of providing full torque instantly in either direction, they are available with 100° or 280° rotation at pressures up to 1000 psi. The Tork-Mor Series can be mounted in any axis using a wide variety of standard or optional mountings.

  • Hydraulic Service (see catalog)
  • Pneumatic Service - 250 PSI

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Proven reliable through many years of field service, the Tork-Mor Series incorporates many quality features including precision ball bearings to provide shaft support, externally removable gland for ease of seal replacement and cylinders honed to a 10 micro inch finish to ensure long seal life.


Rated Operating Pressure:

  • Pneumatic – 250 psi
  • Hydraulic – See table

Rotations: 

  • S Models – 280° ± 1°
  • DS Models – 100° ± 1°

Max. Allowable Drainline Pressure: 

  • Hydraulic – 50 PSI;
  • Pneumatic – Drain lines are not necessary; plug drain ports

External Shaft Load Capacities:

  • Thrust Loads: Units have no thrust load capacity. See page 8 for optional thrust load bearings and their capacities.
  • Radial Loads: External radial loads are not recommended and can reduce the life of the unit. Consult factory before applying.

Installation and Operating: 

  • Read instructions in Maintenance & Installation Section of this catalog before applying Tork-Mor Series actuators.