Founded in 1961, Nanjing Electro-mechanical and Hydraulic Engineering Research Centre of Aviation Industry Corporation of China (AVIC), is a research and production base for Chinese aviation airborne and electromechanical system products. It is also a research and development centre for aviation electromechanical and hydraulic engineering within AVIC.

The hydraulic servo department of Nanjing Electro-mechanical and Hydraulic Engineering Centre is mainly engaged in research and development, and production of electro-hydraulic servo valves and electro-hydraulic servo control systems. It is the national leader in the design, selling and manufacture of electro-hydraulic control products and systems with the longest history, largest size and most advanced level in China. The technology of electro-hydraulic servo valves heralded a new era of precision control. With over 50 years experience producing servo valves, our 609 brand products provide precise control of position, velocity or force- so important to the proper operation of a wide variety of industries, such as aviation, aerospace, navigation, weapons, automobiles, metallurgy, robots, mining, power generation. The performance of our products has reached the same advanced level as that of similar types of servo valves in the world.

We have management and staff of about 200 people. Our factory covers an area of approximate 10, 000 square meters with lab having an area of about 4, 000 square meters. Our factory has more than 300 special equipment and machines with fixed assets worth USD 13 million. Every year our factory produces more than 10, 000 different kinds of electro-hydraulic servo valves with annual output value worth about USD 32 million.

At NEIAS, our true expertise is in helping solve your motion control problem. Our engineering staff is available to assist you in your efforts to accurately and precisely control position, velocity or force in your specific application. Often times this results in a customized design and product, specifically suited to your need. Our capabilities in this respect are unmatched in China and our products are unparalleled in the world in terms of quality and cost effectiveness. So call us and let us know how we can help. You will be glad you did.

609's reputation for excellence and engineering expertise in design and production extends to its service and support capabilities. We also maintain an expertly staffed and modernly equipped repair department with complete static and dynamic test facilities to help you keep all elements of your systems in top working conditions.

Our continued growth as the leading supplier of electro hydraulic servo controls in China has LED to the creation of special product repairs services that speak to the needs of our industrial users. These services include a fully organized and equipped repair department, an adequate stock of replacement parts for most industrial controls products, and a streamlined paperwork and product handling system for units returned for repair.