PR4-3X Series Radial Piston Pump Replacement | PR4-3X/1.60 PR4-3X/2.00 Hydraulic Pump

Genlu Hydraulic proudly introduces the PR4-3X Series high-performance radial piston fixed-displacement pumps. Fully engineered to match the industry-standard PR4-3X architecture, this series provides a high-reliability, drop-in replacement for demanding industrial hydraulic systems. We specifically highlight our capability to supply precision models including the PR4-3X/1.60 and PR4-3X/2.00-700RA01M01.

The PR4-3X series is renowned for its rugged radial-piston design, offering elite performance in high-pressure and high-cycle industrial applications. Genlu guarantees 100% Drop-in Interchangeability across mounting footprints, flange configurations, shaft specifications, and performance curves compared to original PR4-3X series assemblies. Every pump undergoes 100% full-pressure load and volumetric-efficiency verification on our digital test benches, certifying rugged, consistent, and pulsation-free pressure output for your most critical hydraulic power units.

Technical Specifications 

• Product Series: PR4-3X Series Radial Piston Pump

• Representative Models: PR4-3X/1.60, PR4-3X/2.00-700RA01M01

• Nominal Displacement: 1.60 cc/rev – 2.00 cc/rev

• Nominal Operating Pressure: 700 bar (High-Pressure Series)

• Peak Transient Pressure: Up to 750 bar

• Rated Speed Range: 1000 – 3000 rpm

• Construction: Radial Piston

• Mounting Style: Flange Mounting (Industrial Standard Interface)

Key Technical Advantages:

• Ultra-High Pressure Resilience: The radial piston architecture is engineered to sustain continuous 700 bar operating pressures, ideal for high-pressure clamping, shearing, and forging applications.

• Minimal Flow Pulsation: Precision-engineered porting geometry reduces discharge fluctuation, ensuring steady system pressure, lower acoustic noise, and reduced vibration across the hydraulic circuit.

• Elite Wear Resistance: Core rotating components are manufactured from high-strength bearing steel with advanced heat treatment, ensuring maximum durability and sustained volumetric efficiency under extreme loads.

• True Drop-in Compatibility: Fully compliant with industrial-standard mounting interfaces, allowing for a seamless “plug-and-play” replacement in existing systems without requiring modifications to manifolds or brackets.

Application Areas:

• Industrial Presses: Primary power sources for forging, stamping, and metal-forming machine tools.

• High-Pressure Fixtures: Precision power for automated clamping and holding circuits.

• Testing Equipment: Hydraulic power for material fatigue testing and ultra-high-pressure lab rigs.

Expert Maintenance Tips:

• Strict Fluid Cleanliness: High-pressure radial piston pumps are extremely sensitive to particulate contamination. Maintain ISO 4406 17/15/12 cleanliness levels and utilize high-pressure inline filtration.

• Cold-Start Protocol: In low-ambient temperature environments, operate the system under no-load for 5-10 minutes to bring fluid to operating temperature. This prevents metal-to-metal wear on the porting surfaces.

• Case-Drain Management: Never connect the case-drain port to a back-pressured return line. Ensure the drain line is unrestricted and leads directly to the reservoir; internal housing pressure build-up will cause premature shaft-seal failure.