The 1PUG Series Hydraulic Gear Pump is a compact and high-performance external gear pump designed for medium-pressure hydraulic systems. Featuring a high-strength aluminum alloy housing, precision-machined gears, and optimized bearing support technology, the pump provides stable flow output, high efficiency, low noise operation, and excellent durability.
The 1PUG Series is widely used in agricultural machinery, construction equipment, hydraulic power units, forklifts, lifting platforms, material handling equipment, and industrial hydraulic systems requiring reliable hydraulic power transmission.
| Type | Displacement | Max pressure | Max.Speed | Min.Speed |
| P1 | P2 | P3 | | |
| (cm³/rev) | bar | bar | bar | (r/min) | (r/min) |
| 1PUG-4.3 | 4.3 | 270 | 280 | 290 | 4000 | 1000 |
| 1PUG-5.0 | 5.0 | 270 | 280 | 290 | 4000 | 1000 |
| 1PUG-6.0 | 6.0 | 270 | 280 | 290 | 3500 | 1000 |
| 1PUG-6.5 | 6.5 | 270 | 280 | 290 | 3000 | 1000 |
| 1PUG-7.0 | 7.0 | 270 | 280 | 290 | 2500 | 1000 |
| 1PUG-7.8 | 7.8 | 250 | 260 | 270 | 2100 | 1000 |
| 1PUG-10 | 10 | 250 | 260 | 270 | 2100 | 800 |
Working Principle
The 1PUG Series operates according to the positive displacement principle of external gear pumps.
- Hydraulic oil enters through the suction port.
- The drive shaft rotates the driving gear.
- The driven gear rotates simultaneously.
- Oil is transported around the outer circumference of the gears.
- The meshing gears force the oil into the outlet chamber.
- Pressurized hydraulic oil is continuously supplied to the hydraulic system.
This design ensures smooth, efficient, and reliable hydraulic power transmission.
Applications
The 1PUG Series Hydraulic Gear Pump is widely used in:
- Agricultural tractors
- Harvesters
- Forklifts
- Hydraulic power packs
- Construction machinery
- Aerial work platforms
- Material handling equipment
- Industrial automation systems
- Packaging machinery
- Road maintenance equipment
- Mobile hydraulic machinery