Rexroth A7VK Series Metering Pump | A7VK0012, A7VK0028, A7VK0055, A7VK0107 | Polyurethane Foaming Pump

Rexroth A7VK Series High-Pressure Polyurethane Metering Pump

Product Overview: The Rexroth A7VK series is a high-precision axial piston variable pump specifically engineered for Polyurethane (PU) processing equipment and high-pressure metering systems. Serving as the “heart” of foaming machines, this series is widely used in the production of refrigerator insulation, automotive interior components, and sandwich panels. Its classic Bent-Axis architecture allows for the precise dosing of Isocyanate and Polyol, ensuring exceptional repeatability in chemical ratios.

Key Technical Advantages:

• Superior Metering Precision: Purpose-built for chemical media, achieving microliter-level flow control through precise adjustment mechanisms. Models like the A7VK0028 and A7VK0055 maintain highly stable displacement output during continuous operation.

• High-Viscosity Fluid Handling: Featuring specialized seal and port plate designs, the A7VK series easily manages the circulation of high-viscosity liquids, preventing internal damage caused by media crystallization.

• High-Pressure Durability: Rated for an operating pressure of 250 Bar (25 MPa). The reinforced bearing system ensures a service life that far exceeds standard hydraulic pumps in high-frequency start-stop foaming environments.

• Compact & Easy Integration: From the compact A7VK0012 to the high-capacity A7VK0107, the series is designed for a minimal footprint, allowing for easy integration into the tight frames of modern foaming equipment.

Specific Models & Technical Parameters:

• Core Models: A7VK0012, A7VK0028, A7VK0055, A7VK0107.

• Displacement Range: 12 cm³/rev to 107 cm³/rev.

• Pressure Specifications: Rated at 250 Bar (25 MPa); Peak cycles up to 315 Bar.

• Control Methods: MA (Manual Adjustment), or Automatic Control with speed sensors.

• Applications: PU foaming machines, two-component spraying equipment, and chemical high-pressure dosing.