Product Overview
The Rexroth A4VG28DWD1/32MRNC45F000AS-C (Material Number: R902155546) is a high-performance axial piston variable displacement pump from the renowned Rexroth A4VG series, specifically engineered for closed-circuit hydrostatic transmission systems. Utilizing a robust swashplate design, this pump delivers exceptional power density and precise displacement control by varying the swashplate angle to adjust the piston stroke within the cylinder barrel. As a critical component in mobile and industrial hydraulic drive systems, it provides smooth, infinitely variable speed control, high operating pressures, and reliable bidirectional flow characteristics essential for demanding traction and auxiliary drive applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Variable Displacement) |
| Model Designation | A4VG28DWD1/32MRNC45F000AS-C / R902155546 |
| Series | A4VG (Closed Circuit) |
| Nominal Displacement | 28 cm³/rev (Size 28) |
| Operating Pressure | Up to 400 bar (Nominal), 450 bar (Peak) |
| Control Type | DWD1 – Proportional Solenoid Control with Integrated Electronics |
| Mounting & Connection | Standard ISO / SAE Flange Interface |
| Direction of Rotation | Clockwise / Counter-Clockwise (Bidirectional) |
Engineering Features & Advantages
- Precision Swashplate Design: The axial piston configuration with a variable swashplate enables infinitely variable displacement, delivering precise flow control and high torque output across the entire speed range.
- Advanced DWD1 Control: Equipped with proportional solenoid control and integrated electronics, this pump offers fast response times, excellent repeatability, and compatibility with modern electronic control units (ECU) for optimized system performance.
- High-Pressure Capability: Engineered to withstand continuous operating pressures up to 400 bar and peak pressures of 450 bar, ensuring reliable operation in the most demanding closed-loop hydraulic circuits.
- Compact & Robust Construction: The A4VG series features a compact, high-strength housing that minimizes installation space while providing superior durability and resistance to vibration and thermal stress.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM specifications, ensuring seamless integration into existing Bosch Rexroth drive systems without modification.
Typical Industrial Applications
This Rexroth A4VG28 axial piston variable displacement pump is ideally suited for closed-circuit hydrostatic transmission systems in mobile and industrial machinery. Common applications include: construction equipment such as excavators, wheel loaders, and road rollers; agricultural machinery including tractors and combine harvesters; municipal vehicles like street sweepers and refuse trucks; and industrial drive systems requiring precise speed and torque
PRODUCT IMAGES
REXROTH A4VG28DWD1/32MRNC45F000AS-C / R902155546 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 A4VG28DWD1/32MRNC45F000AS-C / R902155546 Axial Piston Variable Displacement Pump. This German-made hydraulic pump features a swashplate design, delivering reliable, high-efficiency fluid power for heavy-duty industrial systems.
