Product Overview
The Rexroth A4VG56HW100/32MRNC42F700000-0 (material number R902155547) is a high-pressure axial piston variable displacement pump from the Bosch Rexroth A4VG series, engineered for closed-circuit hydrostatic transmissions. Utilizing a swashplate design with axial pistons, this pump converts mechanical drive power into controlled hydraulic flow, with displacement infinitely variable proportional to swashplate angle. The A4VG series is purpose-built for demanding mobile and industrial drive systems where bidirectional flow, high working pressure, and precise control response are essential. The HW control variant provides hydraulic proportional displacement control with integrated pressure cutoff, enabling smooth, load-responsive modulation of pump output. This unit is a direct-fit replacement component for OEM closed-loop drive systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Variable Displacement) |
| Model Designation | A4VG56HW100/32MRNC42F700000-0 / R902155547 |
| Series / Size | A4VG Series, Size 56 (nominal displacement 56 cm³/rev) |
| Working Principle | Swashplate axial piston, closed-circuit configuration |
| Control Type | HW — hydraulic proportional control with pressure cutoff |
| Operating Pressure | High-pressure rated (up to 400 bar nominal / 450 bar peak, series-typical) |
| Mounting & Connection | SAE flange mounting, standard Rexroth port interface |
| Direction of Rotation | Clockwise (viewed from drive shaft) |
Engineering Features & Advantages
- Precision Performance: Swashplate axial piston design delivers high volumetric efficiency and stable flow across the full displacement range, with infinitely variable output for precise speed and torque control in closed-loop circuits.
- Advanced HW Control: Hydraulic proportional control with integrated pressure cutoff protects the system from overload while maintaining responsive, load-sensing displacement modulation.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened piston/cylinder interfaces and robust bearing design for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, ensuring drop-in replacement without modification.
Typical Industrial Applications
This pump is ideally suited for closed-circuit hydrostatic drive systems including mobile construction machinery (excavators, wheel loaders, cranes), agricultural and forestry equipment, marine and offshore winch drives, and heavy-duty industrial transmission systems such as metallurgical handling equipment and specialty machine tools requiring bidirectional variable-speed control.
PRODUCT IMAGES
Rexroth A4VG56HW100/32MRNC42F700000-0 / R902155547 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 A4VG56HW100/32MRNC42F700000-0 / R902155547 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.
