Product Overview
The Rexroth A4VG28EP4DM1/32R-NSC10N00XEH-S (Material Number: R902227055) is a high-performance axial piston variable displacement pump from the renowned Bosch Rexroth A4VG series. Engineered with a swashplate design, this pump is specifically built for closed-circuit hydrostatic transmissions, delivering exceptional power density and precise control in demanding mobile and industrial applications. The A4VG28 model features a nominal displacement of 28 cm³/rev and is equipped with a comprehensive control device (EP4DM1) that enables proportional electro-hydraulic displacement control, ensuring smooth and responsive operation. Its robust construction and advanced engineering make it an ideal choice for systems requiring high pressure, variable speed, and reliable bidirectional flow.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Axial Piston Variable Displacement Pump |
| Model Designation | A4VG28EP4DM1/32R-NSC10N00XEH-S |
| Material Number | R902227055 |
| Nominal Displacement | 28 cm³/rev |
| Operating Pressure | Up to 400 bar (nominal), 450 bar (peak) |
| Control Type | EP4DM1 – Electro-hydraulic proportional control with integrated electronics |
| Mounting & Connection | Standard SAE mounting flange, splined shaft, ISO 6162 port connections |
| Direction of Rotation | Clockwise (viewed from shaft end) |
Engineering Features & Advantages
- Precision Performance: Swashplate design with high-precision axial pistons ensures efficient power transmission, minimal leakage, and stable operation even under high load.
- Advanced Control: EP4DM1 control provides precise electro-hydraulic proportional displacement adjustment, enabling seamless integration into modern closed-loop control systems.
- Industrial Reliability: Built for continuous operation in severe environments, with robust bearings and hardened components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth specifications, ensuring drop-in replacement without modification.
- High Power Density: Compact design delivers high pressure and flow in a small envelope, ideal for space-constrained installations.
Typical Industrial Applications
This pump is widely used in mobile and industrial hydraulic systems, including: construction machinery (excavators, wheel loaders), agricultural equipment (tractors, combine harvesters), marine and offshore winches, and industrial test stands requiring precise variable displacement control. Its closed-circuit capability makes it particularly suitable for hydrostatic drives in travel and winch applications.
PRODUCT IMAGES
REXROTH A4VG28EP4DM1/32R-NSC10N00XEH-S / R902227055 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 A4VG28EP4DM1/32R-NSC10N00XEH-S / R902227055 Axial Piston Variable Displacement Pump. This Germany-made hydraulic pump features a swashplate design, delivering reliable, high-efficiency fluid power for heavy-duty industrial systems.
