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Char-Lynn spool valve motors

Small but powerful, Eaton Char-Lynn low-pressure spool valve motors are perfect for general purpose applications, from harvesting equipment to food processing plants. They provide reliable, continuous operation in demanding environments.

5-22.8 cc (0.3 to 1.4 cu in)
200 bar (2,900 psi)

Optimized for smooth performance

Char-Lynn spool valve motors distribute pressurized fluid into and out of the Orbit gear set via valve slots integrated into the output shaft. You can optimize the valve for low-flow, low-speed needs to ensure smooth operation.

Designs based on the Orbit Principle

Our premium line of Char-Lynn motors feature a design based on the Orbit Principle, in which an internal gear rotates inside of an external fixed gear. These gerotor motors are known for their reliable high-power density, modularity and economic design.

A wide range of displacement and pressure options

Select from four series to find a spool Geroler motor to meet your design needs.


  • Swing motor
  • Brush cutters and mowers
  • Directional boring
  • Turf equipment
  • Skid steer loader attachments
  • Harvesters
  • Snow removal
  • Sprayers
  • Trenchers
  • Grinders and mixers
  • Forestry equipment
  • Irrigation reels

Featured resources

Watch this animation of spool Geroler motor in action

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    Whether you’re designing a new system or retrofitting an existing machine, Eaton’s design and engineering experts and integrator partners are available for consultation and collaboration. We offer system design, analysis, build, and project management services.
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