STF – PS Series – Cam Ring Piston Hydraulic Motors
Experience the pinnacle of versatility and high-pressure performance with the STF CRM-PS Series. Available through Thm Hydraulics, these Low-Speed High-Torque (LSHT) radial cam-ring motors are engineered for the most demanding hydrostatic transmission units. The hallmark of the PS Series is its sophisticated modular design, allowing you to customize the output, function, and braking modules to fit your exact mechanical requirements. Capable of handling extreme operating pressures up to 450 bar, the CRM-PS series delivers the rugged reliability and precision control needed for military, mining, and heavy metallurgical applications.
Core Technical Specifications:-
- Component Architecture: Modular LSHT Radial Cam-Ring Motor
- Model Variations: PS02, PSE02, PS05, PS08, PSE08, PS11, PSE11, PSE18, PS25, and PS35
- Maximum Operating Pressure: Up to 450 bar
- Rated Torque Range: 273 N.m to 6,675 N.m
- Design Feature: Fully Modular (Selectable Output, Function, and Brake modules)
Key Features & Engineering Advantages:-
- Flexible Modular Architecture: The modular design simplifies your mechanical layout. By selecting specific flow-distribution and brake modules, you can reduce overall configuration complexity and tailor the motor’s footprint to your specific machine design.
- Superior Radial & Axial Load Handling: The output module is equipped with heavy-duty biconical roller bearings. This allows the motor to withstand significantly stronger external forces, making it ideal for direct-drive wheel or sprocket applications.
- Self-Compensating Efficiency: The disc flow-distribution module features an automatic wear-compensation function. This ensures the motor maintains high volumetric efficiency and peak performance even after years of continuous, heavy-duty service.
- High-Performance Sliding Shoe Technology: The function module utilizes advanced sliding shoes that offer superior heat resistance and anti-friction properties. This optimizes the stator curve interaction, drastically improving running stability and impact resistance.
- Advanced Composite Processing: Key internal components are treated with new composite processing technologies to enhance fatigue, abrasive, and corrosion resistance, significantly prolonging the service life of the motor in harsh environments.
Ideal Industry Applications:-
The extreme pressure tolerance and modular flexibility of the CRM-PS motor make it the premier choice for:
- Hydrostatic Drivetrains: Serving as the primary drive motor for heavy-duty construction vehicles, skid steers, and off-road mining equipment.
- Marine & Deck Machinery: Providing precision control and high-pressure power for winches, capstans, and specialized shipboard equipment.
- Military & Defense Systems: Delivering the high reliability and shock resistance required for specialized tactical vehicle drapes and mobile weaponry platforms.
- Heavy Metallurgy & Cement Equipment: Powering high-torque industrial feeders, rotary kilns, and large-scale material processing machinery.
Why Choose the STF CRM-PS Series?
- Simplify Your Engineering: The modular nature of the PS series means the motor adapts to your machine, not the other way around, saving you countless hours in layout design.
- Built for 450 Bar Intensity: While standard motors struggle at high pressures, the PS series thrives, providing steady torque and power where other systems fail.
- Long-Term Volumetric Stability: Thanks to the automatic wear-compensation in the distribution module, you won't see the typical "power fade" common in older radial piston designs.
