Danfoss White 255 Series Motors Built for Heavy Duty Torque

The White (Danfoss) WR 255-Series hydraulic motor is a medium-speed, high-efficiency machine optimized for smooth, durable performance in a variety of mobile and industrial applications. It uses a Roller Stator® geometry with seven precision rollers to eliminate sliding friction and provide rolling contact, which significantly boosts efficiency and reduces wear. The motor incorporates a three-zone spool valve, built-in check valves, and a case-drain provision to minimize pressure on internal seals and extend its operational life. Rated for continuous operating pressures up to 172 bar (2500 psi), it supports flow rates up to around 61 L/min, with top speeds close to 1,100 rpm or more depending on model. Multiple displacement options (roughly 40–404 cc/rev) provide flexibility in torque and speed characteristics depending on your system requirements. Mounting choices include various flange, shaft, and port configurations, making it easy to integrate into different hydraulic systems. Its robust shaft-seal design maintains performance under high pressure, and it’s well-suited for use on conveyors, wheel drives, sweepers, car washes, and more. Overall, the WR 255-Series offers a reliable, efficient, and versatile hydraulic drive solution engineered for longevity and high performance.