Yuken A3H Series Pump | A3H100, A3H145, A3H180 | 35MPa High Pressure Piston Pump

Yuken A3H Series Ultra-High Pressure Axial Piston Variable Pump

Product Overview: The Yuken A3H series is a premier line of ultra-high pressure variable displacement piston pumps engineered for extreme industrial applications. As the heavy-duty powerhouse of the Yuken family, the A3H series (covering 100cc, 145cc, and 180cc) supports a continuous operating pressure of up to 35 MPa. Featuring an innovative swashplate support structure and high-rigidity housing, these pumps maintain peak volumetric efficiency even at high rotational speeds. Equipped with LR01 Pressure Compensator control, such as the A3H100-LR01KK, they deliver precise pressure cut-off—ideal for forging machines, heavy presses, and subsea equipment.

Key Technical Advantages:

• Ultra-High Pressure Capability: Rated for 35 MPa (350 Bar) continuous operation with peak cycles up to 40 MPa. This superior pressure tolerance allows the pump to easily handle instantaneous shock loads in heavy machinery.

• High-Speed Operational Efficiency: Optimized suction ports and lightweight rotating components enable the A3H series to achieve higher rated speeds even under self-priming conditions, significantly boosting overall machine cycle efficiency.

• Intelligent LR01 Pressure Compensation: Models like the A3H145-LR01KK-10 feature a sensitive pressure compensator. Once the preset system pressure is reached, the pump automatically de-strokes to minimum displacement, maintaining pressure while drastically reducing power loss and heat generation.

• Exceptional Durability & Contamination Resistance: Utilizing specialized surface treatments on pistons and valve plates, the A3H ensures an extended service life under 24/7 operational cycles, minimizing the risk of unplanned maintenance downtime.

Detailed Models & Parameters:

• Core Series: Yuken A3H Series.

• Representative Models: A3H100-LR01KK-10, A3H145-LR01KK-10, A3H180-LR01KK-10.

• Displacements: 100 cm³/rev, 145 cm³/rev, 180 cm³/rev.

• Pressure Ratings: Rated at 35 MPa (5075 PSI); Peak cycles up to 40 MPa (5800 PSI).

• Design Code: -10 series (Ensures the latest technical enhancements and optimized performance).