What’s Happening Inside a Vane Pump

The core components of a vane pump include:

1. Rotor - Mounted on the pump shaft and placed eccentrically within the pump chamber.
2. Vanes - Evenly inserted into the rotor slots, these slide outward under centrifugal force, hydraulic pressure, or spring force.
3. Pump Chamber - The eccentric space between rotor and chamber separates the suction zone from the pressure zone.

During operation, the rotor drives the vanes to spin, and the chamber’s volume changes accordingly:

• In the suction zone, the vanes extend outward and the chamber volume expands, creating negative pressure to draw in fluid.
• 在 In the pressure zone, the vanes retract and the chamber volume decreases, forcing fluid out of the outlet. This cycle continues, enabling continuous and stable fluid delivery.

This cycle continues, enabling continuous and stable fluid delivery.

Key Features

• Stable flow output:
  Ideal for hydraulic systems that require consistent pressure and precision control.
• Low noise operation:
  Structural design reduces hydraulic pulsation and mechanical vibration.
• High efficiency:
  Performs well in medium to low pressure ranges, suitable for long-term operation.
• Easy maintenance:
  Simple structure, convenient parts replacement, and relatively low cost of upkeep.

Common Classifications (Based on Flow Regulation)

1. Fixed Displacement Vane Pumps:
   Flow remains constant; suitable for applications with stable operating conditions.
2. Variable Displacement Vane Pumps:
   Flow can be adjusted by altering the eccentricity or through control mechanisms to accommodate system pressure variations.

Typical Applications

• Machine Tool Hydraulic Systems:
  Provides stable pressure to ensure machining precision.
• Injection Molding Machines:
  Control clamping, mold opening/closing, and injection operations.
• Hydraulic Chucks and Industrial Automation:
  Drive clamping, material handling, and other operations requiring low noise and stable flow.

CML – Professional Manufacturer of Vane Pumps

As a professional hydraulic product manufacturer, we deliver vane pumps with the following strengths:

• A variety of pressure and flow options.
• Various combinations of vane pumps and gear pumps.
• Rich experience in industrial applications.
• Support custom-built services.
• Hydraulic circuit design service.