The 0PUA*A1 Series Hydraulic Gear Pump is a miniature external gear pump designed for compact hydraulic systems requiring high efficiency, stable performance, and lightweight construction. Featuring a precision-machined gear set, high-strength aluminum alloy housing, and optimized pressure compensation design, the pump provides reliable flow output, low noise operation, and long service life.

This series is particularly suitable for small hydraulic power units, agricultural machinery, lifting equipment, industrial automation systems, lubrication systems, and mobile hydraulic applications where installation space is limited. Similar Group 0 micro gear pumps are widely used in compact hydraulic power packs due to their small size, high-speed capability, and excellent efficiency.

Working Principle

The 0PUA*A1 Series operates according to the positive displacement principle of an external gear pump.

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 carried around the outer circumference of the gears.
5. The meshing gears force the oil into the pressure chamber.
6. Pressurized hydraulic oil is continuously supplied to the hydraulic system.

This design ensures smooth and reliable hydraulic power transmission while maintaining high operating efficiency.

Product Features

• Compact Group 0 external gear pump design
• Lightweight aluminum alloy housing
• High volumetric and mechanical efficiency
• Stable flow and pressure output
• Precision-ground 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
• Easy installation and maintenance
• Long service life