GR series high-pressure silent spiral gear pump has good design technology. The spiral tooth surface meshing allows the fluid to flow smoothly without pulsation. It eliminates the noise source of pressure fluctuation in structure. There is no oil trap phenomenon. It can not only carry higher pressure and flow, but also has the characteristics of low noise (≤55d(B)A, pulsating stability and low vibration. In terms of power transmission, it provides power for the hydraulic power steering system and lifting system. It also enhances the braking effect in the hydraulic braking assistance system. It is widely used in driving car lift, garbage compression and other working devices such as forklifts, agricultural machinery, loaders, dump trucks, garbage trucks and other special vehicles.