Rexroth PVQ Series Variable Piston Pump | PVQ21 PVQ32 PVQ45 | 1X Series

LIC Hydraulic specializes in the Rexroth PVQ Series, the definitive solution for high-pressure, low-noise industrial hydraulic power. The PVQ family—ranging from the compact PVQ10 to the high-capacity PVQ45—is engineered for open-circuit industrial systems where precision and quiet operation are paramount. Featuring sophisticated control options like the RB15 pressure regulator, models such as the PVQ21-1X/055 provide dynamic flow adjustment to match load demand, maximizing energy efficiency. Rated for continuous operation up to $210\text{ bar}$ ($3000\text{ PSI}$), the Rexroth PVQ series ensures reliable, long-term performance for injection molding, machine tools, and heavy-duty manufacturing cells.

Technical Highlights

• Ultra-Quiet Performance: Advanced fluid passage and housing designs significantly reduce acoustic output and pressure ripple compared to standard piston pumps.

• Fast Dynamic Response: Precision swashplate control allows for rapid changes in displacement, ensuring stable pressure even during high-frequency cycles.

• Compact Footprint: High power density design allows for easy integration into modern, space-constrained industrial machinery.

• Interchangeable Control Logic: Available with a wide array of compensators (Pressure, Flow, or Power) to suit any specialized hydraulic logic.

Application Areas

• Plastics Industry: Reliable hydraulic source for injection molding and extrusion clamping units.

• Metalworking: High-precision power for CNC tool-clamping and multi-axis hydraulic circuits.

• General Industry: Centralized hydraulic power units (HPUs) for factory automation and conveyor systems.

Expert Maintenance Tips

• Mandatory Case Priming: To avoid immediate failure, always pre-fill the pump case with filtered hydraulic oil through the drain port before the initial run.

• Filtration Vigilance: To protect the precision-engineered internals of the PVQ32 and PVQ45, maintain a fluid cleanliness level of ISO 18/16/13.

• Monitor Return Line Pressure: Ensure the case drain line backpressure is kept below $2\text{ bar}$ to maintain the integrity of the high-pressure shaft seal.