Product Overview
The Rexroth A10VSO 28 DR/31R-PPA12N00 is a high-performance axial piston variable displacement pump engineered for open circuit industrial hydraulic systems. Featuring a swashplate design with a nominal displacement of 28 cm³/rev, this pump delivers precise pressure and flow control through its integrated DR (pressure controller) configuration. As part of the renowned A10VSO series, it is widely specified for demanding applications requiring high operating pressures, excellent suction characteristics, and long service life. The 31R series designation indicates the latest generation design with optimized control response and reduced noise emission.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Variable Displacement) |
| Model Designation | A10VSO 28 DR/31R-PPA12N00 |
| Nominal Displacement | 28 cm³/rev |
| Control Type | DR – Pressure Controller (constant pressure regulation) |
| Operating Pressure | Up to 280 bar continuous / 350 bar peak (standard industrial grade) |
| Mounting & Connection | Standard ISO 4-hole flange, SAE splined shaft, flange ports per ISO 6162 |
| Direction of Rotation | Clockwise (viewed from shaft end) |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HLP, HLVP per DIN 51524) |
Engineering Features & Advantages
- Precision Performance: Swashplate axial piston design with DR pressure controller maintains constant system pressure by automatically adjusting displacement to match load demand, eliminating excess heat generation and improving energy efficiency.
- High Pressure Capability: Robust cylinder barrel and piston shoe design enables continuous operation up to 280 bar with excellent volumetric efficiency and minimal internal leakage.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with heavy-duty bearings, hardened running surfaces, and proven Rexroth quality standards for extended service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth A10VSO series specifications, ensuring drop-in replacement without modification.
- Optimized Control Response: The 31R generation features refined control piston and spring design for faster pressure compensation and reduced pressure overshoot during load changes.
Typical Industrial Applications
This pump is ideally suited for plastic injection molding machines, metallurgical presses, CNC machine tools, and general industrial hydraulic power units. Its pressure-controlled variable displacement capability makes it particularly effective in systems requiring precise holding pressure, rapid cycle response, and energy-efficient operation under varying load conditions. Commonly found in marine hydraulics, construction equipment, and automated production lines where reliable high-pressure fluid power is essential.
PRODUCT IMAGES
REXROTH A10VSO 28 DR/31R-PPA12N00 Axial Piston Variable Displacement Pump
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH A10VSO 28 DR/31R-PPA12N00 Axial Piston Variable Displacement Pump. This German-made hydraulic pump features a pressure-controlled design, delivering reliable, high-efficiency fluid power for heavy-duty industrial systems.
