A10VO Series 31 Axial Piston Variable Pump (Model: R902404876 / AA10VO71DR/31R-VSC92N00) Product Description

The A10VO Series 31 Axial Piston Variable Pump, exemplified by model R902404876 (AA10VO71DR/31R-VSC92N00), is a premium hydraulic power solution engineered for high-performance industrial and mobile applications. Crafted with precision manufacturing and advanced hydraulic technology, this pump delivers exceptional reliability, energy efficiency, and adaptability to meet the demands of complex hydraulic systems.

Core Design & Operational Excellence

• Features an axial piston configuration integrated with a robust swash plate control mechanism, enabling stepless variable displacement adjustment. This design allows real-time flow rate optimization to match dynamic load requirements, significantly reducing energy consumption and enhancing system efficiency.

• Constructed with high-strength, wear-resistant materials and precision-machined components, the pump withstands continuous working pressures up to 35MPa (350bar) and maximum operating speeds of 3000rpm. Its rugged build ensures stable performance in harsh environments, including extreme temperatures (-20°C to 80°C) and heavy mechanical stress.

• Incorporates advanced hydraulic circuit design to minimize internal leakage and pressure loss, achieving volumetric efficiency of ≥95%. Low-noise operation (≤75dB) complies with international industrial noise standards, improving workplace safety and comfort.

• Equipped with remote pressure control (DR variant) and load-sensing capabilities, enabling precise regulation of pressure and flow. This ensures seamless adaptation to changing working conditions and protects the hydraulic system from overload, extending the lifespan of connected equipment.

Key Specifications & Versatility

• Available in multiple displacement options (45cc, 71cc, 74cc) to cater to diverse flow demands, from compact mobile machinery to large-scale industrial equipment. The modular design supports easy integration with various hydraulic system configurations.

• Designed for open-loop hydraulic systems, with broad compatibility across construction machinery (excavators, wheel loaders), agricultural equipment (tractors, harvesters), industrial machinery (injection molding machines, industrial presses), and material handling systems.

• Adopts standard SAE J744 flanges and SAE J518 ports for universal installation, simplifying replacement and retrofitting in existing systems. Compatible with common hydraulic fluids (mineral oil, synthetic oil), enhancing usability across global applications.

Reliability & Maintenance Convenience

• Undergoes rigorous quality control testing, including pressure endurance, temperature cycling, and wear resistance assessments, to ensure a long service life of up to 10,000 operating hours.

• Optimized lubrication system and wear-resistant components (such as hardened steel pistons and ceramic-coated cylinders) reduce maintenance frequency and lower total operating costs.

• Modular construction and accessible internal parts facilitate easy installation, inspection, and component replacement. Minimal downtime during maintenance ensures maximum productivity for critical operations.