2-125AE6S-E–570 Hydraulic Motor | Axis Variable Displacement Plunger Motor | 125cc High Pressure Motor

The 2-125AE6S-E–570 by Chengyuan Hydraulic is a high-performance bent-axis variable displacement plunger motor. Engineered for hydraulic drive systems requiring superior power density and precision, this motor allows for stepless adjustment of speed and torque by altering the displacement. We guarantee 100% original-place interchangeability with leading global brands. At Chengyuan, every motor undergoes 100% simulated condition testing before shipping, ensuring exceptional volumetric efficiency and starting torque under high-pressure loads to provide reliable power for your heavy-duty machinery.

Technical Specifications (Bulleted List):

• Model: 2-125AE6S-E–570

• Type: Bent Axis Variable Displacement Motor

• Max Displacement: $125\text{ cm}^3\text{/rev}$

• Min Displacement: $0\text{–}25\text{ cm}^3\text{/rev}$ (Adjustable)

• Rated Pressure: $35\text{ MPa (5076 psi)}$

• Peak Pressure: $40\text{ MPa (5800 psi)}$

• Max Speed (at Max Disp.): $3400\text{ RPM}$

• Max Speed (at Min Disp.): $5000\text{ RPM}$

• Control Type: Variable Control

• Mounting: SAE or ISO compliant flange

• Drain Requirement: Case drain must be connected for cooling and lubrication

Key Technical Advantages:

• High Power Density Bent-Axis Design: The 40° bent-axis configuration provides a wider displacement range than axial plunger motors. This allows for higher torque output in a compact frame and superior self-priming capabilities.

• High-Pressure Piston Friction Pair: The pistons and cylinder block are made from premium alloys with vacuum heat treatment and precision grinding. Optimized lubrication film design reduces power loss and ensures structural integrity at $40\text{ MPa}$ peak pressure.

• Heavy-Duty Bearing Support: Equipped with high-precision tapered roller bearings, the motor can withstand extreme radial and axial loads. This ensures tens of thousands of hours of service life, even under frequent start-stop or reverse cycles.

• Optimized Valve Plate Structure: Using CFD-optimized valve plate geometry, the motor minimizes fluid pulsation and operating noise, ensuring smooth power delivery at high rotational speeds.

Application Areas:

• Construction Machinery: Crawler drill drives, excavator travel systems.

• Forestry Equipment: Cutting disc drives, heavy-duty harvesters.

• Industrial Drives: Concrete mixer drum drives, metallurgical equipment main drives.

Expert Maintenance Tips:

• Initial Priming: Before the first startup, the case must be filled with clean, filtered hydraulic oil through the highest drain port to prevent dry-running damage to internal components.

• Case Pressure Limits: Never block the drain port. Internal case back-pressure must stay below $0.2\text{ MPa}$ to avoid shaft seal failure or internal damage.

• Contamination Control: This precision motor is highly sensitive to particulates. Maintain a system filtration of at least $10\text{ }\mu\text{m}$ and regularly check oil oxidation levels.