2 Bolt Gerotor Hydraulic Motor BMR 250 For Turbines / Drilling Machines
BMR 250 Series Two-Bolt Cycloidal Hydraulic Motor
Product Overview

The BMR 250 is a high-performance, two-bolt-mounted cycloidal hydraulic motor. This series is renowned for its compact structure, outstanding starting characteristics, and high power density. It is specifically designed for heavy-duty industrial applications requiring reliable, continuous power output, excelling particularly in space-constrained turbine drive systems and drilling equipment for feed, rotation, or auxiliary functions. Its rugged design ensures extended service life under harsh environments and sustained high-pressure operating conditions.
Key Selling Points Summary
- Robust Torque: Delivers smooth and powerful output torque even at low speeds, ensuring reliable heavy-load equipment startup.
- Compact Two-Bolt Design: Features a compact structure for flexible installation, saving equipment space and ideal for integrated applications.
- Exceptional Reliability: Utilizes Gerotor technology with fewer internal components, minimizing wear and extending service life.
- Wide Applicability: Engineered for demanding conditions in turbine auxiliary drives, drilling machinery, mining equipment, and similar applications.
- Efficient and Smooth Operation: Runs smoothly with low noise, exhibiting no crawling even at extremely low speeds.
Core Technical Features
1.Gerotor Mechanism:
- High-precision machined gerotor gears achieve high efficiency and high torque output in internal gear meshing.
- Fewer moving parts ensure smooth transmission and strong impact resistance.
2.Two-Bolt Flange Mounting:
- Simplified mounting interface requires only two bolts for secure fastening, greatly streamlining installation and disassembly.
- Multiple shaft extension, port location, and rotation direction options are available to meet diverse equipment integration requirements.
3.Exceptional Mechanical Efficiency:
- Optimized flow distribution design minimizes internal leakage, ensuring high efficiency across the entire speed and pressure range.
- High starting torque enables smooth, powerful startup from zero speed.
4.Robust and durable construction:
- Heavy-duty bearing design withstands high radial and axial loads.
- High-quality sealing materials effectively prevent leakage and adapt to various hydraulic fluids and operating environments.
Typical Application Areas
- Turbine Equipment: Used in gas turbines and steam turbines for starter motors, turning gear, or auxiliary drive systems.
- Drilling Machinery: Serves as a power source for drill pipe wrenches, mud pump auxiliary drives, and wellhead automation equipment.
- Construction Machinery: Winches, hoists, travel drives, mixers, etc.
- Agricultural machinery: Cutting or feed drives for harvesters, seeders, and fertilizer spreaders.
- Industrial equipment: Conveyor belt drives, mixing equipment, valve actuators, etc.
Technical Specifications
|
Parameter Name |
Value/Description |
|---|---|
|
Series Model |
BMR 250 |
| Displacement | 250 cc/rev |
|
Installation Method |
2-Bolt Flange |
|
Work pressure |
Continuous working pressure: Up to 175-210 bar Intermittent working pressure: Up to 240 bar |
|
Peak pressure |
280 Bar |
|
Speed range |
Maximum speed: Up to 1000 RPM |
Why choose our BMR 250 hydraulic motor?
- Professional Application Experience: We deeply understand the demanding requirements of turbines and drilling equipment for power components, and the BMR 250 is precisely engineered for this purpose.
- Global Quality Standards: Manufactured with premium materials and advanced processes, ensuring every motor meets stringent performance and quality benchmarks.
- Comprehensive Technical Support: We provide thorough technical selection guidance, installation instructions, and after-sales support to ensure your equipment operates efficiently.
- Competitive Pricing: While guaranteeing exceptional quality, we offer highly competitive market pricing to deliver maximum value for your investment.


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