Basic Definition
Poclain:A renowned French professional hydraulic brand, globally famous for low-speed high-torque radial piston motors, widely adopted in heavy-duty construction machinery, road rollers, asphalt pavers, mining equipment and agricultural machinery.
Radial Piston Hydraulic Motor:A hydraulic motor with pistons arranged radially around the central output shaft, belonging to the low speed high torque (LSHT) hydraulic motor category. It converts hydraulic pressure energy into mechanical rotary torque.
Poclain Radial Piston Hydraulic Motor is a world‑famous low‑speed high‑torque Hydraulic piston motor. As core power‑output hydraulic motor, it converts hydraulic energy into mechanical rotational torque for the complete hydraulic system . Adopting cam‑lobe radial piston structure, this motor delivers huge torque even at ultra‑low rotating speed. It is widely applied for heavy‑duty mobile and industrial equipment, suitable for original machine assembly, power‑unit matching, equipment renovation and aftermarket spare‑parts replacement of the whole hydraulic system .
Structural Working Principle
Multiple cylindrical pistons are distributed radially along the motor housing circumference, pushing against an eccentric cam ring. High-pressure hydraulic oil enters piston chambers sequentially to drive pistons to reciprocate, acting on the cam ring to generate rotational force on the output shaft.
- High torque output at ultra-low rotational speeds
- Capable of direct wheel drive without reduction gearboxes
Core Characteristics
1. Extremely high starting torque, stable operation under heavy load and creeping speed
2. Strong shock resistance and heavy-load bearing capacity, adaptable to dusty, muddy harsh working conditions
3. Large displacement range, optional fixed or variable displacement versions
4. Integrated brake, speed sensor and anti-reverse valve available for customization
5. High volumetric efficiency, low internal leakage and long service life
Main Application Scenarios
Wheel drive of road rollers, paver travel drive, excavator crawler drive, mixer drum drive, mining scraper, harvester wheel hub drive, offshore marine hydraulic drive systems.
Common Series
MS05, MS08, MS11, MS18, MS25, MS35, MS50 etc. (classic Poclain MS series hub motors)
Standard Foreign Trade Full Nomenclature
Poclain Low Speed High Torque Radial Piston Hydraulic Motor