A10VO Series 31 Axial Piston Variable Pump (Model: AA10VO71DRG/31L-PSC62N00, Part No.: R910945652)

The A10VO Series 31 is a high-performance axial piston variable pump designed for open-circuit hydrostatic systems, with the AA10VO71DRG/31L-PSC62N00 (part number R910945652) as a key model. It delivers flow proportional to drive speed and displacement, offering precise control and reliable power output for demanding hydraulic applications. Available in displacement variants including A10VO45, A10VO71, and A10VO74, it adapts to diverse flow requirements across industrial and mobile scenarios.

Core Design & Performance Highlights

• Features a robust swashplate structure and nine-piston configuration, ensuring strong suction capacity, low operating noise, and extended service life.

• Boasts impressive pressure ratings: rated working pressure up to 28 MPa (4000 psi) and peak pressure reaching 35 MPa (5000 psi), enabling compact system design.

• High power density and efficient energy conversion minimize waste, outperforming fixed-displacement pumps in fuel economy and heat reduction.

• The DRG/31L-PSC62N00 control variant integrates pressure and flow control, with a pressure-compensated design that optimizes oil supply based on system demands.

Key Control & Functional Traits

• Pressure-Flow Compensation (DRG/PSC): Automatically adjusts displacement to match load requirements, eliminating energy loss from excess oil overflow.

• Stable Pressure Regulation: Maintains consistent system pressure under varying loads, ensuring smooth operation of hydraulic actuators like cylinders and motors.

• Reliable Fault Tolerance: Built-in protection mechanisms prevent damage from pressure spikes or cavitation, enhancing operational stability in harsh conditions.

• Compatibility with Series 31 Standards: Shares interchangeable core components with other A10VO Series 31 models, simplifying maintenance and replacement.

Application Range

Ideal for both mobile and industrial hydraulic systems, it is widely used in construction machinery (wheel loaders, excavators, cranes), agricultural equipment (harvesters, tractors), and industrial machinery (CNC machine tools, forging presses, conveyor systems). It provides stable power for lifting, slewing, feeding, and other critical operations, adapting to both light and heavy-duty working conditions.

Core Advantages

• Versatile Displacement Options: A10VO45 (45 cc/rev), A10VO71 (71 cc/rev), A10VO74 (74 cc/rev) cover small to medium flow demands, meeting diverse system needs.

• Flexible Installation: Compatible with SAE/metric mounting flanges and multiple port orientations, supporting horizontal/vertical installation for space-constrained setups.

• Durable Construction: Resists wear and corrosion, performing reliably in high-temperature, dusty, or humid environments.

• Easy Maintenance: Modular design allows quick access to key components, reducing downtime for inspections and repairs.