40YCY14-1B 63YCY14-1B 80MYCY14-1B Axial Piston Pump | Manual Variable Displacement | 31.5MPa High Pressure

The YCY14-1B Series (including 40YCY, 63YCY, and 80MYCY) by Chengyuan Hydraulic is a high-pressure manual variable axial piston pump designed for the most demanding industrial environments. With a rated pressure of 31.5MPa, these pumps are engineered as a high-performance alternative to standard Chinese industrial piston pumps. Featuring reinforced alloy steel components and 100% original-place interchangeability, our pumps undergo 100% simulated condition testing to ensure zero-defect performance in energy efficiency and mechanical reliability.

Technical Specifications (Bulleted List)

• Model Range: 40YCY14-1B, 63YCY14-1B, 80MYCY14-1B

• Nominal Displacement: $40\text{ ml/r, } 63\text{ ml/r, } 80\text{ ml/r}$

• Rated Pressure: $31.5\text{ MPa (4568 psi)}$

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

• Rated Speed: $1500\text{ RPM}$

• Maximum Speed: $2200\text{ RPM}$

• Control Method: Manual Variable Displacement

• Rotation: Right-hand (CW)

• Weight: $35\text{kg}$ to $75\text{kg}$ depending on size

Key Technical Advantages

• 9-Piston Balanced Architecture: The 9-piston layout ensures minimal flow pulsation and pressure ripple, which leads to smoother mechanical operation and a significant Low Noise Profile.

• Heavy-Duty Ductile Iron Housing: The pump casing is forged from high-strength ductile iron, providing exceptional fatigue resistance and dimensional stability under continuous $31.5\text{MPa}$ pulses.

• Precision-Lapped Valve Plates: The valve plate and cylinder block interface are processed with nano-level lapping and advanced nitriding, drastically reducing friction and extending the Service Life.

• High Volumetric Efficiency: By strictly controlling the tolerances between the piston and cylinder bore, our pumps maintain a volumetric efficiency of over $95\%$, reducing system heat generation and energy consumption.

Application Areas

• Forging Machinery: Primary power source for hydraulic presses, bending machines, and heavy stamping equipment.

• Metallurgy & Mining: Hydraulic stations for rolling mills, hoist systems, and heavy-duty mining excavators.

• Heavy Machine Tools: Large-scale gantry milling machines and modular industrial production lines.

Expert Maintenance Tips

• Casing Fill Requirement: Before the initial startup, ensure the pump housing is filled with clean hydraulic oil through the highest drain port to prevent dry-running damage between the slipper and swashplate.

• Contamination Control: Axial piston pumps are sensitive to particulate contamination. Maintain filtration at $10\text{–}20\text{ }\mu\text{m}$ to protect the precision-lapped surfaces.

• Manual Adjustment: When adjusting the variable displacement handwheel, ensure the system is at low pressure or unloaded for smooth operation and to avoid impact damage to the limit screws.