In Apr. 1996, JSM was established to engage in rotor spinning parts trade and rotor spinning technical consulting services.

In Feb.,1998,the wear-resistant ability of rotor cups with elox surface treatment reached the world advanced level.

In Jun. 2001, the first set of ECM for oblique holes cross surface processing of rotor cups was produced by us.

In Jul. 2003, we realized an annual output of 500,000 sets of rotor spinning process parts.

In May 2005, the application of diamond coating technology on metal surface on rotor was successfully studied and issued national patent (ZL2006 20012220.7) 

In Apr. 2006, we cooperated with American companies to equip a diamond coating production line on metal surface for the high-end rotor spinning process parts.

In Jul. 2009, after efforts in research and development, the integral ring gear, a special textile piece with very high processing difficulty, was produced. 

In Sep. 2012, a project was initiated to develop and produce the high-speed rotor bearings of 110,000r/min. 

With an annual output of 300,000 sets, high-speed rotor bearings were supplied to domestic and foreign markets, and users have responded well in Jun. 2014. 

In Aug. 2015, the production base in Qingyuan Economic Development Zone, Hebei Province was put into operation.