Product Overview
The Rexroth A10VO28DFR1/31R-VSC12N00 is a high-performance axial piston variable displacement pump from the renowned A10VO series, engineered by Bosch Rexroth for demanding industrial and mobile hydraulic applications. Utilizing a robust swashplate design, this pump delivers precise variable displacement control with exceptional efficiency and reliability. The model designation “DFR1” indicates a pressure and flow control configuration (DR with flow control), making it ideal for systems requiring accurate pressure compensation and load-sensing capabilities. With a nominal displacement of 28 cm³/rev and a size 31 frame, this pump is optimized for open-circuit operation, providing smooth, infinitely variable flow adjustment to match system demands while minimizing energy consumption and heat generation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Variable Displacement) |
| Model Designation | A10VO28DFR1/31R-VSC12N00 |
| Nominal Displacement | 28 cm³/rev |
| Operating Pressure | Up to 280 bar (continuous), 350 bar (peak) |
| Control Type | DFR1 – Pressure and Flow Control (Load Sensing) |
| Mounting & Connection | Standard ISO 4-hole flange, SAE splined shaft |
| Rotation Direction | Clockwise (viewed from shaft end) |
Engineering Features & Advantages
- Precision Performance: Swashplate design with high-precision axial pistons ensures smooth, infinitely variable displacement and excellent volumetric efficiency, reducing energy loss and heat generation.
- Advanced DFR1 Control: Integrated pressure and flow control (load sensing) allows the pump to automatically adjust output to match system demand, improving overall system efficiency and reducing valve losses.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust bearings and hardened components for long service life and minimal downtime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in replacement without modification.
Typical Industrial Applications
This pump is ideally suited for a wide range of heavy-duty industrial and mobile hydraulic systems, including plastic injection molding machines, metallurgical presses, construction and marine hydraulics, CNC machine tools, and other applications requiring precise pressure and flow control in open-circuit configurations.
PRODUCT IMAGES


REXROTH A10VO28DFR1/31R-VSC12N00 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 A10VO28DFR1/31R-VSC12N00 Axial Piston Variable Displacement Pump. This Germany-made hydraulic pump features a pressure-controlled design, delivering reliable, high-efficiency fluid power for heavy-duty industrial systems.
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