Product Overview
The Rexroth A7VK0028MA/10VRSL4P550-0 (R902186115) is a high-performance axial piston variable displacement pump engineered for demanding industrial and mobile hydraulic systems. Featuring a bent-axis rotary group design, this pump delivers exceptional volumetric efficiency and high operating pressure capability in a compact, robust package. The A7VK series is renowned for its precise displacement control, allowing stepless adjustment of output flow to match system demand, thereby reducing energy consumption and heat generation. With a nominal displacement of 28 cm³/rev, this pump is ideally suited for applications requiring reliable high-pressure power delivery, such as industrial presses, marine winches, and heavy-duty mobile equipment. The model code “MA” indicates a specific control variant, while “VRSL4P550” denotes the mounting flange, shaft, and port configuration, ensuring exact OEM compatibility.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Axial Piston Variable Displacement Pump |
| Model Designation | A7VK0028MA/10VRSL4P550-0 / R902186115 |
| Nominal Displacement | 28 cm³/rev |
| Operating Pressure | Up to 350 bar (continuous), 400 bar (peak) |
| Control Type | Variable displacement, MA control (manual adjustment with pressure override) |
| Mounting & Connection | Standard SAE flange, splined shaft, ISO port connections |
| Rotation Direction | Clockwise (viewed from shaft end) |
Engineering Features & Advantages
- Precision Performance: Bent-axis axial piston design ensures high volumetric efficiency and precise flow control across the entire displacement range, minimizing internal leakage and maximizing system responsiveness.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened piston shoes and a robust swashplate mechanism that withstands high pressure and cyclic loading.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, including mounting flange, shaft, and port configuration, ensuring drop-in installation without modification.
- Energy Efficiency: Variable displacement capability allows the pump to match flow to demand, reducing power consumption and heat generation in idle or low-load phases.
Typical Industrial Applications
This pump is commonly used in plastic injection molding machines, metallurgical presses, construction and marine hydraulics, CNC machine tools, and other heavy-duty industrial systems requiring reliable high-pressure variable flow.
PRODUCT IMAGES



REXROTH A7VK0028MA/10VRSL4P550-0 / R902186115 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 A7VK0028MA/10VRSL4P550-0 / R902186115 Axial Piston Pump. This German-made hydraulic component features a swashplate design, delivering leak-free, reliable fluid power for heavy-duty industrial systems.





