Rexroth A4VSO Series Pump | A4VSO71, A4VSO250, A4VSO500 | Industrial Variable Pump | A4VSO500HS4/30R

Rexroth A4VSO Series Industrial Heavy-Duty Variable Piston Pumps

Product Overview: The Rexroth A4VSO series is the recognized “power core” for global industrial open-circuit hydraulic systems. Engineered as a swashplate-type axial piston variable displacement pump, this series is built to withstand extreme continuous operating pressures and the harshest industrial environments. It covers a comprehensive displacement spectrum from the compact 40cc (A4VSO40) to the massive 500cc (A4VSO500). Featured models like the A4VSO71DR/10R (with pressure control) and A4VSO500HS4/30R-PZH25N00 (with high-performance servo control) deliver precise, long-lasting power at a rated pressure of 350 Bar. Its rugged ductile iron architecture makes it the premier choice for large-scale presses, metallurgical machinery, marine winches, and power plant Hydraulic Power Units (HPU).

Key Technical Advantages:

• Superior Industrial Durability: Optimized for continuous S1 duty cycles, equipped with oversized rotating groups and reinforced bearings for an extended service life under high-flow, high-pressure operations.

• Versatile Control Modalities: Offers diverse options including DR (Pressure Control), LR (Power Control), HD (Hydraulic Proportional), and high-end HS4 (Servo Displacement Control) for precise automation.

• Extreme High-Pressure Durability: Rated for continuous operation at 350 Bar (5100 PSI) with peak capabilities up to 400 Bar, ensuring structural integrity under maximum load conditions.

• Quiet & Long-Life Performance: Optimized valve plates and 9-piston architecture significantly minimize hydraulic ripples and mechanical noise, enhancing the workshop environment.

• Excellent Suction Characteristics: Unique internal intake designs maintain superior suction efficiency even in high-displacement models, effectively preventing cavitation.

Detailed Models & Parameters:

• Core Series: Rexroth A4VSO Series 10 & 30 (Industrial).

• Model Keywords: A4VSO40, A4VSO71, A4VSO125, A4VSO180, A4VSO250, A4VSO355, A4VSO500.

• Config Codes: A4VSO71DR/10R, A4VSO500HS4/30R-PZH25N00.

• Displacements: 40 cm³/rev to 500 cm³/rev.

• Pressure Ratings: Rated at 350 Bar (5100 PSI) continuous; Peak capability up to 400 Bar (5800 PSI).

• Rotation: R (Clockwise/CW); L (Counter-clockwise/CCW).

• Target Applications: Metal forming presses, metallurgical cranes, industrial HPU, marine thruster auxiliary systems.