REXROTH A10VSO28DFR1/31R-VPA12N00 / R902504263

Product Overview

The Rexroth A10VSO28DFR1/31R-VPA12N00 (Material Number: R902504263) 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 features a nominal displacement of 28 cm³/rev and belongs to the A10VSO series, widely recognized for its robust construction and exceptional efficiency in open-circuit applications. The DFR1 control variant integrates a pressure and flow compensator (load-sensing) with an additional pressure cut-off function, enabling precise demand-based flow delivery that minimizes energy consumption and heat generation. With a through-drive capability and SAE mounting flange, this pump serves as a critical power source in complex multi-actuator hydraulic circuits, delivering reliable performance in continuous industrial duty.

Technical Specifications

Parameter	Specification / Feature
Component Type	Hydraulic Piston Pump (Axial Piston, Variable Displacement)
Model Designation	A10VSO28DFR1/31R-VPA12N00
Material Number	R902504263
Nominal Displacement	28 cm³/rev
Control Type	DFR1 — Pressure & Flow Compensator (Load-Sensing) with Pressure Cut-Off
Operating Pressure	Continuous up to 280 bar; Peak up to 350 bar
Speed Range	Up to 3,000 rpm (dependent on inlet pressure and fluid viscosity)
Mounting & Connection	SAE 2-bolt flange; ISO 3019/2 standard port connections
Through-Drive	Available (suffix VPA12N00 indicates configuration)
Hydraulic Fluid	Mineral oil based on DIN 51524; HLP/HM grades

Engineering Features & Advantages

Precision Swashplate Performance: The axial piston swashplate design delivers high volumetric efficiency and smooth variable displacement control, ensuring precise flow matching to system demand across the full speed range.
DFR1 Load-Sensing Control: Integrated pressure and flow compensator with pressure cut-off reduces energy losses by delivering only the flow required by the load, significantly lowering system heat generation and operating costs.
Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
Direct Fit Replacement: Precision-manufactured to original REXROTH specifications for direct replacement, minimising downtime and eliminating fitment issues.

Typical Industrial Applications

With a through-drive capability and SAE mounting flange, this pump serves as a critical power source in complex multi-actuator hydraulic circuits, delivering reliable performance in continuous industrial duty.

PRODUCT IMAGES

REXROTH A10VSO28DFR1/31R-VPA12N00 / R902504263 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 A10VSO28DFR1/31R-VPA12N00 / R902504263 Axial Piston Variable Displacement Pump. This Germany-made hydraulic pump features a pressure-controlled design, delivering reliable, leak-free fluid power for heavy-duty industrial systems.