Product Overview

The Rexroth A4VG250HD3D1/32R-NSD10F00 (Material Number: R902131510) is a high-performance axial piston variable displacement pump engineered by Bosch Rexroth for closed-circuit hydrostatic transmission systems. Featuring a swashplate design with axial pistons and a bent-axis rotary group, this pump delivers exceptional power density and precise displacement control for demanding mobile and industrial drive applications. The A4VG series is specifically designed for closed-loop operation, where the pump’s variable displacement capability enables stepless speed and torque control of hydraulic motors in both directions of travel. With a nominal displacement of 250 cm³/rev and a high-pressure capability, this unit is a cornerstone component in heavy-duty propulsion and work-function circuits.

Technical Specifications

Parameter	Specification / Feature
Component Type	Axial Piston Variable Displacement Pump (Closed Circuit)
Model Designation	A4VG250HD3D1/32R-NSD10F00
Material Number	R902131510
Nominal Displacement	250 cm³/rev
Operating Pressure	High-Pressure Industrial Grade (up to 450 bar nominal / 500 bar peak)
Control Type	HD3D1 — Hydraulic Proportional Control with Integrated Pressure Cut-Off
Mounting & Connection	SAE Standard Flange / Rexroth Closed-Circuit Port Configuration
Direction of Rotation	Clockwise (viewed from drive shaft)

Engineering Features & Advantages

Precision Swashplate Performance: The axial piston rotary group with swashplate design enables infinitely variable displacement, providing precise speed and torque control of closed-circuit hydraulic motors with minimal hysteresis and fast response.
HD3D1 Control Integration: The hydraulic proportional control with integrated pressure cut-off protects the system from overload while maintaining smooth, operator-responsive displacement modulation for mobile drive functions.
High Power Density: The 250 cm³/rev displacement combined with high-pressure capability delivers maximum power output in a compact envelope, ideal for space-constrained heavy machinery.
Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust bearings and a hardened swashplate assembly designed for long service life in high-duty-cycle applications.
Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth A4VG series specifications, ensuring drop-in replacement without system modification.

Typical Industrial Applications

This Rexroth A4VG250HD3D1/32R-NSD10F00 axial piston variable displacement pump is typically deployed in closed-circuit hydrostatic drive systems across heavy industrial sectors. Common applications include plastic injection molding machines requiring precise clamping and injection force control, metallurgical presses and forging equipment operating under high cyclic

PRODUCT IMAGES

REXROTH A4VG250HD3D1/32R-NSD10F00 / R902131510 Axial Piston Variable Displacement Pump

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Shop the genuine REXROTH A4VG250HD3D1/32R-NSD10F00 / R902131510 Axial Piston Variable Displacement Pump. This German-made hydraulic pump features a swashplate design, delivering reliable, high-pressure fluid power for heavy-duty industrial systems.