Rexroth A7VO Series Pump | A7VO80, A7VO160, A7VO500 | 350 Bar Bent Axis Piston Pump

Rexroth A7VO Series (Series 63) High-Pressure Bent Axis Variable Pump

Product Overview: The Rexroth A7VO series is a premier high-performance bent-axis power source for Open Circuit hydraulic systems. As a flagship of Series 63, it covers a comprehensive range from standard 80cc (A7VO80) and 160cc (A7VO160) to the massive 500cc (A7VO500) heavy-duty displacements. Featuring a unique bent-axis rotating group, the A7VO pump offers exceptional suction characteristics and high power density. With advanced control options like HD (Hydraulic Control), LR (Power Control), and LRD (Load Sensing), it provides precise flow modulation for heavy construction machinery and metallurgical equipment, significantly optimizing energy efficiency.

Key Technical Advantages:

• Superior Bent-Axis Performance: Utilizes a 40° bent-axis design, providing better self-priming capabilities and longer bearing life compared to swashplate pumps—ideal for high-RPM and heavy-load applications.

• Versatile Precision Controls:

  • HD1 Hydraulic Control (A7VO80HD1): Facilitates stepless displacement modulation via hydraulic pilot signals for rapid and stable response.

  • LRH1 Power Control (A7VO160LRH1): Constant power regulation with a high-pressure cut-off to prevent prime mover or engine overload.

  • LRDN Load Sensing (A7VO500LRDN): Integrated flow and pressure compensation ensure the pump delivers only the exact power required by the load.

• High-Pressure Reliability: Rated for an operating pressure of 350 Bar (35 MPa) with peak capabilities reaching 400 Bar. Its rugged construction withstands intense mechanical shocks and pressure fluctuations.

• Robust Sealing & Interface Configurations:

  • NZB/VZB: Equipped with high-quality NBR or FKM (Viton) seals for leak-free performance under high temperatures and aggressive media.

  • VPH02 (A7VO500): Reinforced shaft ends and flange connections designed specifically for large displacements to ensure absolute torque transmission reliability.

• Low Noise & Longevity: Optimized valve plate designs effectively suppress fluid pulsations, drastically reducing structural noise in large-scale hydraulic power units (HPUs).

Detailed Models & Parameters:

• Core Series: Rexroth A7VO Series 63.

• Representative Models: A7VO80HD1/63L-NZB01, A7VO160LRH1/63R-VZB01, A7VO500LRDN/63R-VPH02.

• Displacements: 55, 80, 107, 160, 250, 355, 500 cm³/rev.

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

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