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    20 hp 175-400cc Radial Piston Hydraulic Motor, 20MPa

    5 out of 5 based on 1 reviews | Write a review
    Affordable price radial piston hydraulic motor for sale. Rated power 17/20/21 hp (13/15/16kW), working pressure 12/14/16MPa, high torque 424~667N.m, theoric specific torque 26~56N.m/MPa, maximum speed 350~1000 rpm, displacement 175~400cc (mL/r). High torque and low speed radial piston engine, wide applications.
    SKU: ATO-RPHM-2020
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Buy radial piston hydraulic motor from reliable manufacturer. Working power 17/20/21 hp (13/15/16kW), rated pressure 1740~2320 psi, rated torque 424~667N.m. The radial piston engine has high efficiency. The higher the torque, the lower the speed.


    Model ATO-ZM3
    Displacement (cc/r) 175 200 250 300 350 400
    Rated Power (hp) 17 17 21 20 17 20
    (kW) 13 13 16 15 13 15
    Rated Pressure (MPa) 16 16 16 14 12 12
    (psi) 2320 2320 2320 2030 1740 1740
    Peak Pressure (MPa) 22 20 20 20 18 18
    Rated Torque (N.m) 424 470 594 592 597 667
    Theoric Specific Torque (N.m/MPa) 26 29 37 42 50 56
    Max. Speed (r/min) 350 320 300 280 250 250
    Weight (kg) 40 40 40 40 40 40


    • The radial piston hydraulic motor is a large torque motor with crankshaft and rod.
    • The shell of radial piston hydraulic motor is extruded and nitrided, which is resistant to wear, fatigue and high temperature.
    • The plunger body is nitrided, added with specially developed piston rings, and good wear resistance.
    • Oil seal of the radial piston hydraulic motor uses skeleton oil seals, high temperature resistance, high pressure, and it is not easy to leakage.
    • Applications of the radial piston hydraulic motor include injection molding machines, ship deck machinery, construction machinery, lifting vehicles, heavy metallurgical machinery, petroleum mine machinery, light equipment, board, drilling machines and other hydraulic transmission systems and equipment, etc.

    20 hp Radial Piston Hydraulic Motor Dimensions Diagram (Unit: mm)

    Dimensions of 20 hpradial piston hydraulic motor

    Standard Involute Spline

    20 hp radial piston hydraulic motor standard involute spline

    20 hp Radial Piston Hydraulic Motor Mounting Diagram

    Installation Diagram of Radial Piston Hydraulic Motor


    20hp Radial Piston Hydraulic Motor Details

    Tips: Precautions for using radial piston hydraulic motor

    1. Radial piston hydraulic motor filtration: the recommended filtration precision for normal industrial use is 25 μm, and 75μm is permitted for low pressure, low speed or intervallic setting.
    2. Oil viscosity: the optimum performance could only be obtainedunder proper oil viscosity between 15-1000cst.
    3. Before the first start-up of radial piston hydraulic motor, it must fill hydraulic oil in the hydraulic motor body, to avoid the damage.
    4. Radial piston hydraulic motor leakage: drain port should be connected separately to the tank. Normally the maximum pressure for the motor body is0.1Mpa, and it could also be improved to bear 3-5Mpa, to meet special requirements.
    5. The top line of the drain pipe should be higher than that of the radial piston hydraulic motor body, in case empting oil storage.
    6. Radial piston hydraulic installation: motor can be installed in any position with rigid support. When installing, shafts of the motor and its transmission should be concentric.
    7. Cleanness: strictly maintain the cleanness of the oil port, and keep any solid particles away.
    8. Radial piston hydraulic motor could not work as a pump.
    Existing reviews of 20 hp 175-400cc Radial Piston Hydraulic Motor, 20MPa
    I will order another 20 hp hydraulic motor
    I bought this 20 hp hydraulic motor with the attitude of trying it out. I didn't expect it to be so easy to use. I will order a few more 175-400cc radial piston hydraulic motors.
    From: Katheh | Date: 28/09/2021
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