Basic Specifications and Performance Parameters
1. Displacement Range:
The BH50-400 model offers a displacement range from 50 cc/rev to 400 cc/rev, depending on the manufacturer's design. For example, the BMS series orbital hydraulic motors provide displacement options ranging from 80.5 cc/rev to 471.1 cc/rev, while the BMT series includes models with displacements from 161.1 cc/rev to 801.8 cc/rev.
2. Pressure Ratings:
• Continuous Working Pressure: Typically 17.5–20 MPa (some models can reach a peak pressure of 22.5 MPa).
• Peak Pressure: Certain models support short-term peak pressures of up to 28 MPa for high-load applications.
3. Torque Output:
• Continuous Torque: Ranges from 178 N·m (for 50 cc models) to 1,464 N·m (for 400 cc models).
• Peak Torque: Some models can deliver up to 1,665 N·m for short-term high-load demands.
4. Speed Range:
• Continuous Speed: The 50 cc model can reach up to 850 rpm, while the 400 cc model typically operates at 154–196 rpm.
• Intermittent Speed: Some models support intermittent operation at speeds ranging from 780–956 rpm, suitable for variable-load scenarios.
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Structural and Design Features
1. Valve Distribution System:
Utilizes disc valve or axial distribution designs to ensure precise oil distribution and efficient operation. For instance, the BMS series employs a disc valve structure, while the BMT series adopts axial distribution technology.
2. Bearing Configuration:
Equipped with tapered roller bearings capable of withstanding high radial and axial loads, extending service life.
3. Sealing Technology:
High-pressure shaft seals are designed to withstand high backpressure, preventing oil leakage and ensuring system stability.
4. Installation Flexibility:
Offers various flange and shaft options (e.g., square flanges, cylindrical shafts, splined shafts) for easy adaptation to different equipment.
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Application Areas
1. Construction Machinery:
Rotary and travel drives for excavators, cranes, concrete pump trucks, and other equipment.
2. Agricultural Machinery:
Hydraulic transmission systems for combine harvesters, tractors, seeders, and other agricultural equipment.
3. Industrial Equipment:
Low-speed, high-torque applications such as conveyors, drilling rigs, winches, and die-casting machines.
4. Marine Equipment:
Hydraulic systems for steering gears, anchor winches, capstans, and other marine applications.
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Typical Model Examples
1. BMS Series:
• Model: BMS-400
• Displacement: 401.9 cc/rev
• Continuous Pressure: 16 MPa
• Continuous Torque: 636 N·m
• Continuous Speed: 180 rpm
• Weight: 13.1 kg
2. BMT Series:
• Model: BMT-400
• Displacement: 410.9 cc/rev
• Continuous Pressure: 20 MPa
• Continuous Torque: 1,080 N·m
• Continuous Speed: 196 rpm
• Weight: 22 kg
3. OMT Series:
• Model: OMT-400
• Displacement: 410.9 cc/rev
• Continuous Pressure: 20 MPa
• Continuous Torque: 1,080 N·m
• Continuous Speed: 196 rpm
