Yuken A3H Series Pump | A3H16, A3H71, A3H145, A3H180 | 35 MPa High Pressure Piston Pump

Yuken A3H Series High-Pressure Variable Axial Piston Pump

Product Overview: The Yuken A3H series is a high-performance power source engineered for hydraulic systems demanding extreme pressure and efficiency. This series spans from the compact 16.3 cm³/rev (A3H16) to the robust 180.7 cm³/rev (A3H180) displacement. Representing the flagship Design 10 series, A3H pumps are capable of stable operation under a continuous pressure of 35 MPa. With superior power density and high self-priming speeds, it is the premier choice for injection molding machines, metal presses, and heavy-duty industrial machinery. Models like the A3H71-LR01KK-10 integrate power control and pressure compensation to achieve maximum energy optimization.

Key Technical Advantages:

• Ultra-High Pressure Capability: Rated for an operating pressure of 35 MPa (350 Bar) with peak cycles reaching 40 MPa. Reinforced rotating groups and slipper designs ensure long-term reliability in high-pressure environments.

• Versatile Precision Controls:

  • LR01 Power Control: Automatically adjusts displacement based on system pressure to keep input power within the preset range, preventing motor overload.

  • Pressure Compensation: Reduces flow automatically upon reaching target pressure, minimizing heat generation and significantly boosting efficiency.

• Exceptional Suction Performance: Optimized valve plates and inlet flow paths enhance self-priming speeds, ensuring full fluid charging and preventing cavitation even at high RPMs.

• Compact & Low Noise: The high-strength ductile iron housing reduces installation footprint and effectively suppresses mechanical noise under high-pressure conditions.

• Superior Efficiency: Maintains volumetric efficiency above 95% at full load, with excellent mechanical efficiency that drastically reduces total thermal loss in hydraulic systems.

Detailed Models & Parameters:

• Core Series: Yuken A3H Series (Design 10).

• Available Sizes: A3H16, A3H37, A3H56, A3H71, A3H100, A3H145, A3H180.

• Displacement Range: 16.3 to 180.7 cm³/rev.

• Rated Pressure: 35 MPa (350 Bar / 5075 PSI).

• Peak Pressure: 40 MPa (400 Bar / 5800 PSI).

• Representative Model: A3H71-LR01KK-10.