Ningjiang Zonghui Precision Small-Sized Worm Co., Ltd.

Ningjiang Zonghui Precision Small-sized Worm Co., Ltd situated at the national class scenic spot and the famous world cultural heritage, Dujiangyan, is a sub company held by Ningjiang Machine Tool Group. The company has the right of import-export operations. It is specialized in manufacturing various precision small-sized worms.

We can manufacture various left-hand and/or right-hand precision small-sized worms with non-li near helical tooth surface by adopting to milling technique which is an advanced international technique.

Process accuracy is up to Grade 6 of GB/T10227-1998, Grade 8-10 of AGMA and Grade 9 of DIN3961. Ningjiang Zonghui is equipped with the best CNC machining equipments and precision quality measuring equipments. It has the production capability of about 10 million precision small-sized worms annually.

The products are widely used in automobile (etc. Worm and worm shaft of the drive components, motor driven door and window, chair adjustment, rain scraper, motor-driven rear view mirror, controls locks and so on), electric machine (worms and worm shaft of motors), medical appliance(worm shaft of medical bolts and medical fluctuation bed), instruments and meters, eyeglasses(screws), household appliances, construction industry(the drive components of motor_ driven door and window) and traffic industry (the drive components of subway motor-driven door) and so on.