Product Overview

The Rexroth A10VSO 28 DFR1/31R-PPA12N00 (Material Number R910910590) is a high-performance axial piston variable displacement pump engineered by Bosch Rexroth for demanding industrial hydraulic systems. Operating on the proven swashplate principle, this pump delivers infinitely variable displacement through precise control of the swashplate angle, enabling accurate flow and pressure regulation in response to system demand. The DFR1 control variant combines pressure and flow control (DFR) with a pressure cut-off function, making it ideal for applications requiring both energy-efficient flow matching and reliable pressure limitation. With a nominal displacement of 28 cm³/rev and a robust through-drive capable design, this pump serves as a central power source in open-circuit hydraulic systems across a wide range of heavy industrial machinery.

Technical Specifications

Parameter	Specification / Feature
Component Type	Axial Piston Variable Displacement Pump
Model Designation	A10VSO 28 DFR1/31R-PPA12N00 / R910910590
Nominal Displacement	28 cm³/rev
Control Type	DFR1 – Pressure & Flow Control with Pressure Cut-Off
Operating Pressure	Continuous up to 280 bar; Peak up to 350 bar
Mounting & Connection	SAE 2-bolt flange (standard ISO interface); splined drive shaft per Rexroth specification
Rotation Direction	Clockwise (viewed from drive shaft end)
Through-Drive Capability	Yes – suitable for tandem pump configurations

Engineering Features & Advantages

Precision Swashplate Performance: The axial piston design with swashplate control delivers infinitely variable displacement, ensuring precise flow matching to system demand and significantly reducing energy losses compared to fixed-displacement solutions.
Advanced DFR1 Control: Integrated pressure and flow control with pressure cut-off enables the pump to maintain constant flow up to the set pressure, then automatically reduce displacement to limit system pressure — ideal for energy-efficient operation and overload protection.
Industrial Reliability: Built for continuous operation under severe industrial conditions, with high-quality bearing and piston-shoe design ensuring long service life and stable performance even at elevated pressures.
Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth A10VSO series standards, ensuring drop-in replacement without modification to existing hydraulic circuits.
Compact & Versatile: Space-saving design with multiple mounting and porting options, suitable for both new system builds and retrofit applications.

Typical Industrial Applications

This Rexroth A10VSO 28 DFR1 pump is widely deployed in heavy industrial scenarios including plastic injection molding machines, metallurgical presses and rolling

PRODUCT IMAGES

REXROTH A10VSO 28 DFR1/31R-PPA12N00 / R910910590 Axial Piston Variable Displacement Pump

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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 DFR1/31R-PPA12N00 / R910910590 Axial Piston Variable Displacement Pump. This Germany-made hydraulic component features a pressure-flow controller, delivering leak-free, reliable fluid control for heavy-duty industrial systems.