High pressure and low energy consumption are one of the main features of modern industrial products. Hydraulic transmission and control technology are widely used.

High-speed, high-pressure and low-noise hydraulic pumps are necessary products for hydraulic systems of new generation machine tools, ships, metallurgy, light industry and construction machinery.

Hydraulic pump is a device that converts the rotating mechanical energy of electric motor or engine into positive displacement fluid energy. Automation or semi-automation of hydraulic machinery is realized through control elements.

Vane pump is superior to gear pump (external engagement type) and plunger pump due to its low noise, long service life, small pressure pulsation and good self-priming performance.

Vane pump is a hydraulic machine that converts mechanical energy of power machinery into hydraulic energy (potential energy, kinetic energy and pressure energy) by rotating impeller. Half a century ago, circular vane pump (pressure 70 bar, displacement 7-200ml/revolution, rotation speed 600-1800 revolutions) was first applied to hydraulic transmission of machine tools. At the end of last century, the pin vane pump (240-320 bar pressure, displacement of 5.8-268 ml/revolution, rotation speed of 600-3600rpm) led by American companies entered the global hydraulic product market and won people's attention.

In the hydraulic industry, under the condition that the mechanical strength of a part of the pump is sufficient and the seal of the pump is reliable, the high-pressure performance of the vane pump depends on the service life of the friction pair between the vane and the stator.

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