Danfoss RDM axial piston hydromotors

Danfoss RDM axial piston motors were developed based on the Danfoss Frame K/L axial piston motor family. Danfoss RDM is a specific fan drive hydraulic motor family for the needs of modern, advanced fan drive applications. Compared to K/L, RDM motors have strengthened roller bearings, so the fan can be mount directly onto the shaft. Thanks to the cartridge mount housing, the motor can be sunk into the hub of the fan blades. This way the installation dimensions are very compact and minimal. The valve system integrated inside the end cap of the motor delivers safety features. De-energized, the control of the motor is at maximum speed, so in case of a loss of control signal, the system cooled by the RDM motor will not overheat. The motor is protected from overpressure and cavitation too. The integrated solenoid valve lets the motor change it's direction of rotation without any external directional valve.

Features, benefits:
- Good serviceability, quick delivery of parts
- Option for CW and CCW rotation
- Cartridge mount: Total length from cooler mount is minimal
- Minimized need for system plumbing
- Forgásirány váltás lehetősége külső útváltó szelep nélkül
- Built-in safety features against pressure spikes, cavitation and loss of control

Application:
- Hydraulic driven cooler fans

Danfoss Technical Information