STF – HA Series – Cam Ring Piston Hydraulic Motors
The STF CRM-HA Series represents the pinnacle of hydraulic engineering for high-end, heavy-duty applications. Available through Thm Hydraulics, these cam ring piston motors are specifically designed to excel in the most punishing working conditions. Featuring a unique hollow rotor design, the CRM-HA series offers unparalleled integration flexibility, allowing for the mounting of brakes, speed encoders, and other specialized equipment directly through the center of the motor. With an immense torque range reaching up to 52,500 N.m and extreme pressure endurance up to 315 bar, this series is the ultimate high-torque, low-speed solution for industrial and mobile machinery.
Core Technical Specifications:-
- Component Architecture: Cam Ring Piston Hydraulic Motor (Hollow Rotor)
- Model Variations: CRM-HA-50, 70, 100, 140, and 210
- Maximum Operating Pressure: Up to 315 bar
- Rated Torque Range: 5,000 N.m to 52,500 N.m
- Design Feature: Hollow Shaft for specialized equipment integration
Key Features & Engineering Advantages:-
- Space-Saving Hollow Shaft Design: The innovative hollow rotor allows for the installation of thru-shaft accessories such as dynamic brakes or high-precision speed encoders. This modularity enables custom configurations tailored to specific user requirements.
- Direct Drive Efficiency: Designed to replace bulky high-speed motor and gearbox combinations. This compact, direct-drive structure reduces mechanical complexity, eliminates gearbox maintenance, and improves overall system reliability.
- Unmatched Low-Speed Stability: Engineered to maintain exceptionally smooth and consistent rotation even at minimal RPMs, ensuring precise control for heavy lifting or slow-crawling industrial processes.
- Extreme Shock Resistance: Features a robust internal framework with a high power-to-mass ratio, providing a strong anti-shock capability that protects the motor from sudden load spikes in inferior working conditions.
- Versatile Operational Modes: Supports a "free-running" working condition and stable variable switching. Additionally, the integrated parking brake ensures maximum safety during stationary periods.
- High Volumetric Efficiency: Precision-machined cam rings and pistons ensure minimal internal leakage, translating high-pressure fluid into maximum output torque with reversible rotation capabilities.
Ideal Industry Applications:-
The massive output torque and integrated hollow-shaft features make the CRM-HA motor the premier drive for:
- Heavy Construction & Mining: Powering the primary wheels or tracks of heavy-duty transport vehicles and the rotary drives of specialized drilling rigs.
- Marine & Offshore Engineering: Driving high-capacity deck winches, anchor handling systems, and heavy-duty cranes where low-speed stability and braking are critical.
- Industrial Manufacturing: Serving as the high-torque heart for large-scale shredders, heavy-duty conveyor systems, and metal processing machinery.
- Petroleum & Energy: Providing reliable, high-pressure rotational power for drilling equipment and localized maintenance machinery in harsh environments.
Why Choose the STF CRM-HA Series?
- Simplify Your Machine Layout: By eliminating the need for a separate gearbox, you save space, reduce weight, and lower the number of potential failure points in your drivetrain.
- Customization Ready: The hollow shaft design means you aren't limited to a standard motor; you can add the sensors and brakes your specific project demands.
- Built for the Toughest Sites: Whether it’s extreme pressure or heavy mechanical shock, the CRM-HA series is built to keep your operations running when standard motors fail.
