Since the 50s, the company has been engaged in the research of pneumatic and hydraulic automatic control technology, and developed the nozzle baffle type electro-hydraulic servo valve in the 70s, and began mass production, which is the pioneer of China's civil electro-hydraulic servo valve business. For decades, we have always adhered to the road of combining scientific research and production, constantly improving product types and improving product quality.

The electro-hydraulic servo valve and electro-hydraulic servo proportional valve independently developed and produced by the company have excellent dynamic and static characteristics, and the flow range is 4~1500L/min, which is used for fast and accurate control of force, displacement, speed and acceleration, and is widely used in machine tools, aviation, aerospace, shipbuilding, metallurgy, automobile, test and testing industries. The company provides a variety of hydraulic component testing equipment and electro-hydraulic servo systems.

Typical applications: batch substitution of imported valves for the largest vertical extruder in China, R&D project of proportional valves for nuclear power background in 2020, large orders of 176 units in aircraft engine ground test equipment in 2021, and progress in 2022 for high-frequency and high-flow valves in Chongqing Kairui's automotive test equipment