QJM Ball Piston Motor | 1QJM1-0.8Z3 | 1QJM32-4.0 | 1QJM12-12.5 | High Torque Hydraulic Motor

QJM Series High Torque Ball Piston Hydraulic Motors

Product Overview: The QJM Series (including 1QJM and 2QJM) is a high-performance Radial Ball Piston Motor renowned for its High Torque, Low Speed (HTLS) capabilities and compact design. By utilizing a unique ball-piston pair instead of traditional slippers, the QJM series simplifies mechanical transmission, allowing it to drive heavy loads directly without gearboxes. This page highlights models ranging from the compact 1QJM1-0.8Z3 to the multi-displacement 1QJM32-4.0S2 and the heavy-duty 1QJM12-12.5. Its robust engineering makes it the premier choice for plastic machinery, mining, marine deck machinery, construction drilling, and oil extraction.

Key Technical Advantages:

• Efficient Ball Piston Design: Replaces piston slippers with precision steel balls to reduce friction, ensuring high startup efficiency and smooth operation at ultra-low speeds.

• Superior Power-to-Weight Ratio: Small footprint and light weight make it ideal for heavy machinery where installation space is restricted but high driving force is required.

• Variable Multi-Displacement: Models like the 1QJM32-4.0S2 support multiple displacement modes (4.0/3.2/2.5/2.0), providing flexibility in speed and torque for various work cycles.

• Extreme Shock Resistance: High-strength housing is engineered to withstand instantaneous hydraulic pressure spikes and external mechanical impacts.

• Target Applications: Injection molding machines, mining conveyors, drilling rotary heads, crawler drives, and marine anchor winches.

Detailed Models & Parameters:

• Core Series: QJM / 1QJM / 2QJM Ball Piston Series.

• Model Keywords: 1QJM1-0.8Z3, 1QJM32-4.0S2, 1QJM12-12.5, 1QJM32-3.2, 1QJM32-2.0.

• Technical Specs Decoding:

  • 1QJM1-0.8: Approx. 0.8 L/rev displacement, optimized for precision small-scale drives.

  • 1QJM32-4.0S2: Features four-displacement switching (4.0/3.2/2.5/2.0) for maximum operational versatility.

  • 1QJM12-12.5: Large displacement heavy-duty model, delivering top-tier output torque.

• Pressure Specs: Operating pressures ranging from 16 to 25 MPa, with peak torques reaching tens of thousands of Nm.