HY10Y to HY71Y Variable Axial Piston Pump | Genlu Low Noise Hydraulic Pump

Genlu Hydraulic proudly presents the HY Series high-performance variable axial piston pumps, engineered to deliver durable, whisper-quiet, and highly efficient hydraulic power for precision machine tools, injection molding machinery, and industrial power units. Our range covers the complete spectrum from HY10Y to HY71Y-RP, balancing high-pressure output with superior noise suppression. Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting flanges, drive shafts, flow control logic, and port configurations. Backed by our uncompromising 100% Simulation Load Testing, each pump is validated for pressure-compensation response, volumetric efficiency, and dynamic sealing integrity before dispatch, ensuring the highest reliability for your mission-critical industrial applications.

Technical Specifications 

• Product Series: HY-RP Series Low-Noise Variable Axial Piston Pump

• Available Models: HY10Y, HY16Y, HY25Y, HY28Y, HY32Y, HY40Y, HY45Y, HY55Y, HY63Y, HY71Y

• Displacement Range: 10 cc/rev to 71 cc/rev (Model-dependent)

• Rated Operating Pressure: 140 – 210 bar (Model-dependent)

• Max Peak Pressure: 250 bar

• Speed Range: 800 – 1800 rpm

• Control Mode: Pressure-Compensated (RP)

• Structural Configuration: Variable axial piston, sub-plate mounting

Key Technical Advantages:

• Whisper-Quiet Technology: Features an optimized port-plate geometry and internal damping design that significantly suppresses fluid pulsation and mechanical vibration. This makes the HY series an ideal choice for noise-sensitive indoor machine shop environments.

• High-Dynamic Response: The internal pressure-compensation mechanism utilizes a low-inertia piston design, enabling rapid response to system load fluctuations. The transition from zero flow to rated displacement is smooth and shock-free, enhancing closed-loop control precision.

• Precision Machining: Cylinder blocks and piston components are manufactured from high-strength wear-resistant alloys, utilizing sub-micron honing techniques to ensure peak volumetric efficiency and reduced heat generation, thereby extending hydraulic fluid service life.

• Long-Life Bearing System: Equipped with high-load capacity bearings, the drive shaft maintains excellent fatigue resistance and rotational stability. This ensures long-term operational integrity and significantly lowers maintenance cycles in continuous-duty industrial applications.

Application Areas:

• CNC Machine Tools: Hydraulic clamping control and machining center power units.

• Plastics & Rubber Machinery: Power units for compact injection molding and compression machines.

• Industrial Automation: Precision automated assembly lines, hydraulic lifting, and clamping mechanisms.

• Laboratory Equipment: Material testing rigs and hydraulic research experimental setups.

Expert Maintenance Tips:

• Case Drain Routing: The pump housing drain port must be connected via an appropriately sized line routed directly back to the reservoir, below the oil level. Never chain this with other return lines to avoid internal case overpressure, which can cause front shaft seal failure.

• Fluid Cleanliness Standards: Given the precision clearances, the system must utilize at least 10μm filtration. Regularly monitor fluid cleanliness to maintain ISO 4406 18/16/13 standards.

• Cold Start Protocol: In cold environments, perform an no-load warm-up cycle to stabilize oil viscosity before applying full operating pressure. This practice significantly extends the life of the piston slippers and port plates.