

GR series high-pressure silent spiral gear pump design has the most leading technical advantages in China. The spiral teeth, shapes and surfaces are completely meshed, and the flow of fluid is stable without pulsation. In terms of structural design, the source of noise has been eliminated - pressure fluctuation, no trap oil phenomenon, can carry higher pressure and flow rate, and have higher volumetric efficiency compared with other rotors.
Parameter Range
Flow range | 4~200 cm³/rev |
| Maximum working pressure | 30 Mpa |
| Working viscosity | 1.4~10000 cst |
| Medium temperature | -40~+200℃ |
| Working medium | Lubricating oil, hydraulic oil, diesel, heavy oil (fuel oil) or lubricating oil with similar properties |
Technical Characteristics
‧Low noise ≤ 55dB(A), stable pulsation, low vibration
‧The pump shell is made of alloy aluminum
‧Can be connected in series at multiple levels
‧Installation form: horizontal, vertical, vertical plug-in and oil-immersed
Application Areas
Widely used in the vehicle industry and hydraulic system equipment, such as hydraulic power devices for construction machinery such as vehicles, drilling rigs, cranes, elevators, rollers, as well as servo electro-hydraulic systems, such as injection molding machines, die-casting machines, bending machines, test benches, servo simulations, etc.
If you have any questions, please feel free to contact us