Bosch Rexroth AA10VNO63 Variable Piston Pump

When large-scale mobile machinery requires serious hydraulic power, the Rexroth AA10VNO63 delivers. Traditional fixed-displacement pumps force the truck engine to work constantly, pumping oil even when the machine is idle. The AA10VNO63 solves this through its intelligent variable displacement design, ensuring that hydraulic power is generated only when the operator actively uses an implement.

Core Advantages of the AA10VNO63 DFR:

• Advanced Load Sensing (DFR): The DFR control valve acts as the brain of the hydraulic circuit. It monitors both the pressure and the flow required by the directional valves. If the system needs low flow at high pressure, or high flow at low pressure, the pump instantly adjusts the swashplate angle to provide exactly that—no more, no less.

• Direct PTO Integration: The unique compact housing is specially designed to clear drive shafts and frame rails, making installation straightforward on modern, space-constrained commercial vehicles.

• High-Temperature Durability: Equipped with premium FKM (Viton) seals, the pump is fully prepared to handle the extreme temperatures of continuous heavy-duty cycles and is compatible with advanced synthetic fluids.

• OEM Compatibility: The “S1345” designation indicates an exact drop-in replacement for specific factory-built vehicles, ensuring zero compatibility issues during maintenance.

Ideal Applications:

• Waste Management: Heavy-duty refuse trucks and large capacity roll-off hoist trucks.

• Material Handling: High-tonnage truck-mounted cranes (knuckle boom cranes) requiring precise load control.

• Municipal Vehicles: Large-scale street sweepers and heavy snowplow equipment.

Faqs:

1. How does the DFR control differ from standard pressure control? While a standard pressure control only limits the maximum pressure, the DFR (Load Sensing) control regulates both pressure and flow. It continuously adjusts to match the exact hydraulic demand of the machine’s actuators, resulting in significantly lower energy waste and reduced heat generation.

2. Is the 52L rotation compatible with any PTO? No. The “L” indicates Left-hand (Counter-Clockwise) rotation when viewing the pump shaft. You must verify that your truck’s PTO output rotates in the correct direction to match this pump, otherwise, the pump will not build pressure and could be damaged.

3. What is the significance of the “S1345” code? The “S1345” is a specific OEM identifier. It means this pump was customized at the factory for a particular heavy equipment manufacturer. We supply the exact replacement to ensure it fits and functions perfectly in your specific vehicle.

4. Are Viton seals required for my application? Viton (FKM) seals, indicated by the “V” in the model code, are highly recommended for mobile applications. They offer superior resistance to high operating temperatures and excellent compatibility with modern, environmentally friendly hydraulic fluids.

5. How does this pump improve my truck’s fuel economy? Because the AA10VNO63 with DFR control destrokes to near-zero flow when no hydraulic implements are actively moving, it removes the parasitic load on the truck’s engine. This means your engine doesn’t have to burn extra diesel just to push oil through a relief valve during standby periods.