Huade A7V160DR1RPF00 Hydraulic Piston Pump | Bent-Axis Variable Displacement | 350 Bar

The A7V160DR1RPF00 axial piston variable pump by Chengyuan Hydraulic is a high-performance bent-axis power component fully compatible with Huade and Rexroth industrial standards. Designed specifically for high-pressure open-circuit systems, the bent-axis architecture offers superior self-priming capabilities and exceptional power density. The DR control mechanism integrated into this model provides constant pressure regulation, automatically reducing displacement to a minimum when the preset pressure is reached to balance the load and save energy. As a premier replacement solution, every Chengyuan A7V160 unit undergoes 100% simulated condition testing, verifying volumetric efficiency and control sensitivity under rated loads to guarantee 100% original-place interchangeability.

Technical Specifications :

• Full Model Code: A7V160DR1RPF00

• Design Type: Bent-axis variable displacement piston pump

• Displacement: $160\text{ cm}^3/\text{rev}$

• Nominal Pressure: $35\text{ MPa (350 bar)}$

• Peak Pressure: $40\text{ MPa (400 bar)}$

• Control Mode: DR (Pressure Control)

• Rotation Direction: R (Right-hand / Clockwise)

• Seal Material: FKM (Viton) for high thermal and chemical resistance

• Shaft Type: P (Parallel keyed or specific splined shaft, per OEM standard)

• Weight: Approximately $92\text{ kg}$

Key Technical Advantages:

• High-Efficiency Bent-Axis Design: Unlike traditional swashplate pumps, the bent-axis design allows for larger piston angles, providing maximum volumetric efficiency with reduced internal friction. This extends the pump’s service life during continuous high-pressure operations.

• Precise DR Pressure Control: The integrated DR valve is highly responsive. Once the system reaches the target pressure, the pump maintains that pressure while minimizing displacement, drastically reducing energy loss and heat generation.

• Superior Self-Priming Ability: The fluid dynamic advantages of the bent-axis design grant the A7V160 higher speed limits and excellent suction characteristics, ensuring rapid pressure build-up even when the tank is positioned below the pump.

• Heavy-Duty Spherical Valve Plate: Utilizing high-precision ground spherical valve plates ensures a perfect seal even under severe pressure shocks and high-frequency vibrations, preventing power loss caused by internal leakage.

Application Areas:

• Heavy-Duty Presses: Forging presses, large-scale bending machines.

• Construction Machinery: Main pumps for large rotary drilling rigs, crawler cranes.

• Marine Engineering: Windlasses, deck machinery, and hydraulic driving systems for offshore platforms.

Expert Maintenance Tips:

• Case Drain Management: Bent-axis pumps are sensitive to case pressure. Ensure the highest drain port is connected directly back to the tank. The internal case pressure must never exceed $0.2\text{ MPa (2 bar)}$.

• Pre-Lubrication Before Start-Up: Before the initial start or after long-term storage, fill the pump case with clean hydraulic oil through the top filling port. NEVER dry-run the pump, as this will cause instantaneous damage to the piston heads and cylinder bores.

• Filtration & Cleanliness: To protect the precision-machined bent-axis assembly, the system must be equipped with a $10\mu\text{m}$ (or finer) filter. Maintain fluid cleanliness according to ISO 4406 18/16/13 standards.