Radial Piston Motors

Delivering High Torque at Low Speeds

Radial piston motors are known for their exceptional efficiency, long service life, and ability to deliver high torque at low speeds. Thanks to their precision engineering, they offer excellent low-speed performance with minimal energy loss – often eliminating the need for a gearbox.

These motors are ideal for demanding, low-speed, high-torque tasks such as: winch drives, concrete mixers, marine trawlers, plastic injection moulding machines

Our website shows only a selection of what we supply. For impartial advice and access to our full range of hydraulic components, contact our expert team.

Radial piston motor - product category header - Italgroup image - For impartial advice and access to our full range of hydraulic components, contact our expert team.

Crankshaft Type

Features inward-pushing pistons on a single cam
Delivers extremely high starting torque
Displacements range from 40cc/rev to 12L/rev
Capable of “creep” speeds and up to 1500 rpm with near-constant torque
Versatile and reliable, even in legacy systems

Multilobe Cam Ring Type

Uses outward-pushing piston rollers on a multi-lobed cam ring
Produces smooth output and high torque at low speeds
Available from 1L/rev to 250L/rev
Ideal for high-power, low-speed applications

What makes radial piston motors different from other hydraulic motor types? Radial piston motors deliver exceptionally high torque at very low speeds, often without needing a gearbox. Their efficiency, smooth low‑speed performance, and long service life make them ideal for demanding, heavy‑duty applications.

Which radial piston motor design is best for my application? Crankshaft‑type motors offer extremely high starting torque and excellent “creep” control, while multilobe cam‑ring designs provide smooth output and high torque for low‑speed, high‑power tasks. Our team can help you compare both options based on speed, displacement, duty cycle, and mounting requirements.

Can you help replace or cross‑reference an existing radial piston motor? Yes. With access to 80+ global brands, we can match or replace legacy units, source direct equivalents, or recommend modern alternatives that meet your torque, speed, and displacement needs.

In addition to radial piston motors, we supply a wide range of hydraulic components to support complete system builds and upgrades:

We source from over 80 trusted brands including Parker, Italgroup, KYB, Bosch Rexroth, and more – offering global delivery and expert technical support.