Rexroth A10VSO Series 31/32 Variable Axial Piston Pump

Rexroth A10VSO Series 31 / 32 Variable Axial Piston Pump

Guangdong Haozheng Hydraulic Equipment Co., Ltd. specializes in manufacturing high-efficiency, heavy-duty Rexroth A10VSO series 31 and 32 variable displacement axial piston pumps. Designed for open-circuit hydraulic systems, our A10VSO pumps feature excellent swashplate design, high power-to-weight ratios, low noise levels, and long service life.

As a leading global hydraulic supplier, Haozheng delivers products with 100% dimensional and performance interchangeability with original Bosch Rexroth components. Every pump undergoes a rigorous testing protocol on our advanced hydraulic test benches before shipment, ensuring zero-defect performance upon installation.

Technical Parameters & Model Selection Guide

• Nominal Pressure: 280 Bar (28 MPa)

• Peak Pressure: 350 Bar (35 MPa)

• Displacements: 18 / 28 / 45 / 71 / 100 / 140 cc/rev

• Fluid Compatibility: Mineral oil based hydraulic fluids

• Displacement (cc/rev)	Control Type Options	Full Model Reference (Series 31/32)
  A10VSO 18	DR / DFR / DFR1 / DFLR	A10VSO18DR, A10VSO18DFR, A10VSO18DFR1, A10VSO18DFLR
  A10VSO 28	DR / DFLR / DFR1 / DFR	A10VSO28DR, A10VSO28DFLR, A10VSO28DFR1, A10VSO28DFR
  A10VSO 45	DR / DFR / DFR1 / DFLR	A10VSO45DR, A10VSO45DFR, A10VSO45DFR1, A10VSO45DFLR
  A10VSO 71	DR / DFLR / DFR1 / DFR	A10VSO71DR, A10VSO71DFLR, A10VSO71DFR1, A10VSO71DFR
  A10VSO 100	DR / DFR / DFR1 / DFLR	A10VSO100DR, A10VSO100DFR, A10VSO100DFR1, A10VSO100DFLR
  A10VSO 140	DR / DFLR / DFR1 / DFR	A10VSO140DR, A10VSO140DFLR, A10VSO140DFR1, A10VSO140DFR

• Robust Hydraulic Solutions for Heavy Machinery

  Our A10VSO 31/32 piston pumps are engineered to withstand extreme pressures, high temperatures, and continuous duty cycles, making them the preferred choice for various industrial and mobile applications:

  • Metallurgical Machinery: Widely used in steel plants, continuous casting equipment, aluminum extrusion presses, and rolling mills requiring stable high-pressure control.

  • Mining Machinery: Integrated into heavy-duty underground mining equipment, coal crushers, rock drilling rigs, and excavation conveyor systems.

  • Industrial Machinery: Powering industrial hydraulic presses, plastic injection molding machines, die-casting systems, and automated factory production lines.

  • Construction Machinery: Serving as the core hydraulic power unit for mobile cranes, pile drivers, road construction equipment, and heavy earthmovers.

• The Haozheng Advantage: Precision, Quality & Reliability

  Choosing Guangdong Haozheng Hydraulic Equipment Co., Ltd. means partnering with an industry-recognized manufacturer committed to high B2B engineering standards:

  • 100% Interchangeability: Our complete pumps, control valves (DR, DFR, DFLR), and inner spare parts (piston shoes, cylinder blocks, valve plates) perfectly match original Rexroth specifications.

  • Advanced Hydraulic Test Bench Testing: We eliminate field failures. Every pump runs through full-load dynamic testing on our proprietary test benches to measure volumetric efficiency, leakage, and pressure stability before packaging.

  • Premium Logistics Protection: Heavy hydraulic units are packed in standard export fumigation-free wooden cases with anti-rust inner wrapping to ensure pristine condition upon arrival.

  • Global Supply Chain Efficiency: With massive stock on common displacements (such as A10VSO 45 and 71), we minimize your machinery downtime with rapid dispatch.

• Frequently Asked Questions (FAQ)

  Q1: Can I use Haozheng A10VSO parts to repair my original Bosch Rexroth pump? A: Yes. Our internal components (including pistons, cylinder blocks, valve plates, and seal kits) are manufactured to the precise dimensional tolerances of the original Rexroth 31/32 series, allowing for seamless component-level replacement.

  Q2: What is the difference between DFR and DFR1 controls on the A10VSO pump? A: Both are pressure and flow control systems (load-sensing). However, the DFR1 controller eliminates the bleed orifice in the LS line, resulting in different dynamic response characteristics depending on your system requirements.

  Q3: What causes pressure loss in an A10VSO pump, and how do I troubleshoot it? A: Pressure loss is typically caused by internal wear (excessive clearance between the pistons and cylinder block), a misadjusted DR valve, or contaminated hydraulic oil. We recommend checking the oil filter and testing the control valve. If internal leakage is too high, contact Haozheng for a complete replacement pump or a rotating group repair kit.

Request a Fast Quote on Rexroth A10VSO Pumps

Need a reliable replacement pump or looking for a long-term manufacturing partner? The engineering team at Guangdong Haozheng Hydraulic is here to assist you with precise cross-referencing and technical support.

📬 Contact Us Today: Click the button below to submit your required model numbers number (e.g., A10VSO45DFR1/31R), quantities, and target applications. Our sales engineers will provide a detailed quote within 12 hours.