The 0PUA*A0 Series Hydraulic Gear Pump is a compact and lightweight Group 0 external gear pump designed for miniature hydraulic systems requiring reliable performance, stable flow output, and high efficiency. Manufactured with a high-strength aluminum alloy housing, precision-machined gears, and advanced sealing technology, the pump delivers excellent volumetric efficiency, low noise operation, and long service life.

The 0PUA*A0 Series is ideal for small hydraulic power units, agricultural equipment, lifting machinery, industrial automation systems, lubrication equipment, and mobile hydraulic applications where compact dimensions and dependable hydraulic power are essential.

Working Principle

The 0PUA*A0 Series operates according to the positive displacement principle of external gear pumps.

1. Hydraulic oil enters through the inlet port.
2. The drive shaft rotates the driving gear.
3. The driven gear rotates simultaneously.
4. Oil is transported around the outer circumference of the gears.
5. The meshing gears force the oil into the pressure chamber.
6. Pressurized hydraulic oil is continuously delivered to the hydraulic system.

This simple and reliable operating principle ensures stable hydraulic power transmission and excellent operational reliability.

Product Features

• Compact Group 0 external gear pump design
• Lightweight aluminum alloy construction
• High volumetric and mechanical efficiency
• Stable flow and pressure output
• Precision-machined alloy steel gears
• Low noise and low vibration operation
• Excellent suction performance
• High-speed operating capability
• Multiple displacement options available
• Clockwise or counterclockwise rotation available
• Reliable shaft sealing system
• Easy installation and maintenance
• Long service life