Rexroth A7VO Series Pump | A7VO80, A7VO160, A7VO55 | Variable Piston Pump

Rexroth A7VO Series High-Pressure Bent-Axis Variable Pump

Product Overview: The Rexroth A7VO series is a high-performance bent-axis axial piston variable pump engineered specifically for Open Circuit mobile applications. As a premier power source for global construction machinery, this series is widely utilized in excavators, cranes, drilling rigs, and various heavy-duty off-highway vehicles. Renowned for its superior self-priming capability and compact bent-axis architecture, the A7VO range delivers exceptionally stable and efficient power output under high-pressure conditions. From the pressure-controlled A7VO55DRS to the power-regulated A7VO160LRH1, these pumps ensure precision and energy efficiency for the entire machine.

Key Technical Advantages:

• Superior Bent-Axis Performance: Unlike traditional swashplate pumps, the A7VO’s bent-axis design allows for larger swivel angles and better suction characteristics. Models like the A7VO160LRH1/63RNZB01 maintain peak volumetric efficiency even during RPM fluctuations.

• Versatile Intelligent Control Logic: Supports a wide array of modulation options. DRS (Pressure Control) automatically de-strokes when the set pressure is reached, while LRH1 (Load Sensing with Power Override) modulates flow and pressure based on real-time loads to prevent engine stalling and optimize fuel economy.

• Optimized Series 63 Design: Featuring the latest Series 63 design, it enhances the durability of the bearing systems and rotating groups. Models like the A7VO80LRH1/63RNZB01 are built for sustained continuous operation at rated pressures of 350 Bar.

• Rugged & Flexible Interface Specs: Compliant with standard NZB01 flanges and shaft configurations, ensuring a perfect match with various mobile gearboxes, which drastically simplifies on-site replacement and maintenance procedures.

Specific Models & Technical Parameters:

• Core Series: A7VO55, A7VO80, A7VO107, A7VO160, A7VO250.

• Detailed Configurations: Supports codes like A7VO55DRS/63L-NZB01, A7VO80LRH1/63RNZB01, and A7VO160LRH1/63RNZB01.

• Displacement Range: 55 cm³/rev to 160 cm³/rev.

• Pressure Specifications: Rated operating pressure 350 Bar (35 MPa); Peak cycles up to 400 Bar.

• Control Methods: DRS (Pressure Control), LRH (Power/Load Sensing), EP (Electric Proportional).