Good price hydraulic single gear pump from professional manufacturer. Displacement 2/3/4/6/7 Max. GPM for selection, pressure 3000~3600 psi, maximum speed 4000 rpm, optional clockwise or counterclockwise rotary. Wide applications includes automobile, hardware, industrial machinery, textile, commercial machinery, chemical equipment, environmental protection, military industry, national defense, etc.
Specification
Model | CHN-HGP-2A |
Displacement | mL/ rev |
2.1 | 2.9 | 4.1 | 5 | 5.7 | 7.9 | 8.8 | 9.9 | 11 | 11.5 |
Max. GPM (Gallon/min) |
2 | 3 | 4.3 | 4 | 4.5 | 6 | 5.8 | 6.5 | 7 | 7.5 |
Rated Speed | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm | 1800 rpm |
Max. Speed | 4000 rpm | 4000 rpm | 4000 rpm | 3000 rpm | 3000 rpm | 3000 rpm | 2500 rpm | 2500 rpm | 2500 rpm | 2500 rpm |
Min. Speed | 700 rpm | 700 rpm | 700 rpm | 600 rpm | 600 rpm | 600 rpm | 500 rpm | 500 rpm | 500 rpm | 500 rpm |
Rated Pressure | 3000 psi (21 MPa) |
Max. Pressure | 3600 psi (25 MPa) |
Volumetric Efficiency | 92% | 92% | 92% | 92% | 92% | 92% | 93% | 93% | 93% | 93% |
Mechanical Efficiency | 88% | 88% | 88% | 88% | 88% | 88% | 90% | 90% | 90% | 90% |
Weight | 1.7 kg | 1.7 kg | 1.7 kg | 1.7 kg | 1.7 kg | 1.7 kg | 1.74 kg | 1.74 kg | 1.74 kg | 1.74 kg |
Rotary Direction | clockwise, counterclockwise |
Mounting Flange | JIS 4-bolt |
Features
- Hydraulic single gear pump uses high-strength aluminum alloy shell and alloy steel hard gear transmission, which is light in weight and stable in transmission.
- Hydraulic single gear pump is suitable for JIS 4-bolt standard flange installation. The input shaft connection form is flat key shaft.
- Hydraulic single gear pump has an automatic compensation mechanism for axial and radial clearances, which enables the oil pump to maintain high volumetric efficiency and high mechanical efficiency for a long time.
- Hydraulic single gear pump uses SP gears, with small fluctuation, high pressure, low noise and stable performance.
- DU composite material bearings and high-performance sealing elements, small starting torque, good sealing performance, and strong anti-fouling ability, so that hydraulic single gear pump can work efficiently under harsh working conditions.
2/3/4/6/7 GPM Hydraulic Single Gear Pump Dimensions Diagram (Unit: mm)

Tips: Hydraulic gear pump selection.
- Confirm the use medium, use environment (temperature), use pressure, and working speed.
The working medium of ATO hydraulic gear pump is 32#, 46#, 68# hydraulic oil. Customers provide detailed specifications such as use medium, use environment (temperature), use pressure, working speed, etc. ATO can professionally customize hydraulic gear pumps for various fluid media (excluding solid particles and flocs). - Confirm the structure: single pump, tandem pump, triple pump and the position of the oil inlet and outlet (side, bottom, front), special oil inlet direction needs to be customized.
- Rotation direction: viewed from the shaft end of the hydraulic gear pump, clockwise rotation is right rotation, and counterclockwise rotation is left rotation. The matching motor should rotate in the opposite direction to the pump. Installation in the wrong rotation direction will directly cause damage to the hydraulic gear pump.
- Confirm the displacement: displacement determines the working speed of system. The motor power can be determined by comprehensive calculation of displacement and pressure value. This can be calculated directly by formula.
- Confirm the installation method and shaft extension: the outer diameter of flange of the installation spigot (metric and inch, etc.).
- Outer diameter of shaft extension: shaft diameter, flat key, spline or special connection mode. At this time, the serialized model of the hydraulic gear pump was basically determined.
- Finally, confirm the oil inlet and outlet specifications of the hydraulic gear pump, including threaded connection and flange connection.
Low price hydraulic single gear pump for sale. Displacement 2/3/4/6/7 Max. GPM, rated pressure 3000 psi, maximum 3600 psi, speed 500 rpm~4000 rpm, volumetric efficiency 92%, mechanical efficiency 88%, rotary direction clockwise/counterclockwise, mounting flange SAE 2-bolt. Small hydraulic gear pump, for industrial/commercial/chemical uses.