Products · Radial Piston Motors
QJM Sphere Piston Radial Motor
Ball pistons with rolling contact — light weight, wide speed regulation, and the smooth stepping variation that extends pump liner life in concrete equipment.
QJM uses a unique sphere (ball) piston design with rolling contact — light and compact relative to its torque output, with reliable performance and long service life across a wide speed regulating range.
Its signature behaviour is smooth stepping variation: in trailer concrete pumps, QJM drives the piston reciprocating mechanism, and the reduced hydraulic shock during valve switching directly extends pump liner service life. Single, double, and triple rotor configurations are available.
Applied in mine engineering, hoisting transport, metallurgy, ships, machine tools, and plastics processing.
Specifications · QJM
| Type | Sphere (ball) piston radial motor — rolling contact |
| Models | QJM001 – QJM62 (1QJM/2QJM/3QJM rotor configs) |
| Speed behaviour | Wide regulation range, capable of stepping variation |
| Strength | Light weight, small size relative to output torque |
| Rotor options | Single / Double / Triple |
| Typical drives | Trailer concrete pump · Plastics machinery · Hoisting and metallurgy |
Used in these application guides