V23A3R-30 Variable Displacement Piston Pump | V15 V23 V38 V50 Series | Hydraulic Axial Piston Pump

The V Series Variable Displacement Piston Pump from LIC Hydraulic is a highly efficient, high-pressure power solution designed for industrial applications. Models such as V23A3R-30 and V23A1RX-20 utilize an axial piston design with a swash-plate mechanism to adjust flow output based on system requirements automatically. Known for their ultra-quiet performance and rapid response, these pumps are the industry standard for machine tool hydraulics. We provide 100% drop-in replacements for Daikin and Nachi V-series, ensuring zero downtime during maintenance and OEM-level volumetric efficiency.

Technical Specifications

• Series: V15, V23, V38, V50 (Displacement from 14.8 to 52 cc/rev)

• Pressure Range:

  • A1: $0.8\text{–}7\text{ MPa}$

  • A2: $1.5\text{–}14\text{ MPa}$

  • A3: $3.5\text{–}21\text{ MPa}$

  • A4: $3.5\text{–}25\text{ MPa}$

• Max Speed: $1800\text{ rpm}$

• Efficiency: $\ge 95\%$ Volumetric Efficiency

• Mounting: SAE Standard or ISO standard options.

Core Advantages

• High Energy Efficiency: The pressure compensator reduces flow to near zero once the set pressure is reached, drastically cutting energy consumption and preventing oil overheating.

• Whisper-Quiet Operation: Advanced port plate geometry and sound-dampening housing minimize hydraulic ripples, making it ideal for noise-sensitive indoor manufacturing environments.

• Rapid Compensator Response: High-speed adjustment of the swash plate angle ensures the pump reacts instantly to actuator demand, improving machine cycle times.

• Robust Durability: Reinforced piston shoes and specialized surface treatments on the cylinder block extend service life under continuous high-pressure cycles.

Application Areas

• CNC Machine Tools: Power for hydraulic chucks, tool changers, and cooling systems.

• Plastic Molding: Clamping and injection circuits for small-to-medium injection molding machines.

• Metal Processing: Precision pipe benders, small hydraulic presses, and punching machines.

• General HPUs: Custom power packs for automated assembly lines and lift systems.

Expert Maintenance Tips

• Initial Priming: Always fill the pump housing with clean hydraulic oil through the top drain port before starting. A “dry start” will destroy the piston shoes within seconds.

• Case Drain Protocol: The case drain line must lead directly back to the reservoir below the oil level. Ensure the drain pressure never exceeds 1 bar to prevent shaft seal blowout.

• Oil Cleanliness: To maintain the precision-lapped surfaces of the rotating group, keep fluid at ISO 18/16/13 or better. Particles are the primary cause of scoring on the swash plate and cylinder block.