About Us

Depending on the requirement of transmission industry, Essor International Inc. and its subsidiary Essor Precision Machinery Co. Ltd. have been solution provider of high accuracy worms, wheels and gear boxes especially for duplex gear box, heliostat for solar sun- tracker system, rotary table, escalator and elevator, etc.

Our reliability as partner of customers ensures that we offer the most important parts in their need for transmission systems. High quality and customer satisfied services are the crucial factors to our success.

Sincerity, excellence, innovation and team- work are the core essence of the company. We will continue to keep our commitments to offer high quality products and outstanding services to all our customers.

Team Work


As the sole supplier of worms and wheels for Siemens in China, Essor regards quality as the life of products. Aside from the expertise engineers and experienced technical staff, our hardware is the core factor that enables us to become the leader in the market. German advanced technology and equipment ensure the quality and efficiency of wheel production. Worm grinding software can make tailor solution for customers.

We can offer not only ZA, ZI, ZK, ZN profile worm gears but also the ZC profile worm paired with radial or tangential cutting wheel units which benefit high torques and efficiencies as well as long lifetimes.Dual lead worm wheel units with variable thickness of tooth are our competitive products for rotary tables as well. The mass production accuracy for our products is up to DIN 4.

"Etching test" for worms by nine processes to detect thermal damage on the work piece during grinding to enhance products quality.

Thanks to the technical transfer and supports from Germany and Taiwan,we have had the strong backing to allow development and manufacturing high precision worms and wheels. We offer tailor-made services for our customers, and optimization and modernization if required. The uncompromising of our customer-oriented products quality are the pillars of our commercial success.

TUV ISO 9001 quality system certified has proof of our commitment to quality and continuous improvement.