Fluid Power Journal

Electro-Hydraulic Controller

p-rexrothThe DS2R electro-hydraulic controller features proportional valve technology and replaces the DS1 model. It is fitted directly to the secondary control unit—axial piston equipment that can serve as both a pump or motor to manage variations in torque on winch drives in rotary AHC systems. The controller offers

  • high dynamic response;
  • precise, accurate motion so the loaded winch cable remains continuously “idle”—moving up and down only according to the winch, not the surface wave motion;
  • energy efficiency through better control of hydraulic components, including the ability to use hydraulic accumulators to recover and reuse up to 70% of the secondary control unit’s installed power; and
  • more reliability and easier maintenance, with a simpler design that eliminates a sandwich filter and is less prone to contamination.
Bosch Rexroth Corp., www.boschrexroth-us.com


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