Product Overview

The Rexroth A10VSO 45 DFR1/31R-PPA12N00 axial piston variable displacement pump (material number R902428405) is a swashplate-type, medium-pressure hydraulic pump engineered for open-circuit industrial drive systems. With a nominal displacement of 45 cm³/rev and a size 31 through-drive configuration, this pump delivers high volumetric efficiency and precise flow control across a wide speed range. The DFR1 control variant combines pressure and flow (load-sensing) regulation with a pressure cut-off override, allowing the pump to match system demand while limiting maximum pressure. The PPA12N00 designation indicates a standard through-drive shaft, SAE mounting flange, and rear port configuration, making this unit a direct-fit replacement for OEM Rexroth installations in demanding industrial machinery.

Technical Specifications

Parameter	Specification / Feature
Component Type	Axial Piston Variable Displacement Pump (Swashplate Design)
Model Designation	A10VSO 45 DFR1/31R-PPA12N00 -S1648 / R902428405
Nominal Displacement	45 cm³/rev
Control Type	DFR1 – Pressure & Flow (Load-Sensing) Control with Pressure Cut-Off
Operating Pressure	Continuous up to 280 bar; Peak up to 350 bar
Mounting & Connection	SAE 2-bolt flange, standard through-drive shaft (PPA12N00 port configuration)
Direction of Rotation	Clockwise (viewed from shaft end)
Circuit Type	Open Circuit

Engineering Features & Advantages

Precision Swashplate Performance: The axial piston swashplate design delivers smooth, infinitely variable displacement, enabling precise flow matching to actuator demand and reducing throttling losses in the system.
DFR1 Load-Sensing Control: Integrated pressure and flow regulation maintains constant flow independent of load pressure, while the pressure cut-off function protects the circuit from overpressure and minimizes heat generation.
Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust bearings and a hardened swashplate assembly rated for high duty cycles.
Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth A10VSO standards, including SAE mounting flange and through-drive shaft for tandem pump configurations.
High Power Density: Compact envelope with 45 cm³/rev displacement provides high flow output relative to installation size, ideal for space-constrained machinery.

Typical Industrial Applications

This Rexroth A10VSO 45 DFR1 pump is widely deployed in plastic injection molding machines, metallurgical presses, CNC machine tools, and construction &amp

PRODUCT IMAGES

REXROTH A10VSO 45 DFR1/31R-PPA12N00 -S1648 / R902428405 Axial Piston Variable Displacement Pump

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Shop the genuine REXROTH A10VSO 45 DFR1/31R-PPA12N00 -S1648 / R902428405 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.