Our History

Zhongshan QianRun Precision Steel Ball Co., Ltd(Q.R. for short) located in Nanlang, Zhongshan, the hometown of revolutionary pioneer Sun Yat-sen. It is a modern and advanced manufacturer, integrating three parts, production, R&D and manufacturing, which covering area of 5.5 thousand square kilometers.

Q.R. was found in 2008 with registered capital RMB 6million. And has 59 employees including 1 postgraduate, 13 undergraduates, 45 college graduates.

High precision stainless steel balls and chrome steel balls are mainly produced by Q.R., which also process semi-finished products like ceramic balls, brass balls, glass balls and plastic balls etc. These precision balls are widely used in bearings, lithium batteries, micro motors, precise molds, auto spare parts, precise instruments, medical equipment, cosmetics and precious metal grinding. Our precision balls are in great demand in domestic, Southeast Asia, Europe and the United States.


Our Factory

Q.R. produces 100 million pieces steel balls each month, by 250 sets of production and testing equipment. And developed and manufactured hundreds of advanced steel ball sorting machines, inspection equipment and automatic manufacturing equipment. meanwhile, Q.R. keep improving quality of producing steel balls, and servicing for other precision steel ball manufacturers. A representative enterprise in steel ball manufacturing field.


Our Product

Chrome Steel Ball (AISI52100,SUJ-2,Gcr15, 100Cr6)

Stainless Steel Ball(AISI1201/AISI304/AISI304L/AISI316/AISI316L)

Stainless Steel Ball(AISI420/AISI420C/AISI440/AISI440C)

Low Carbon Steel Ball(AISI1010/AISI1015)

Brass Ball

Ceramic Ball

Glass Ball 

Plastic Ball

Ball Sorting Machine

Product Application

Bearing, Ball screw, linear motion guide, automotive parts, pump, sprayer.

Our Certificate

TUV ISO9001:2008, UKAS ISO14001:2004 and AQA TS16949:2009 certification

Production Equipment

250 sets of production and testing equipment, hundreds of advanced steel ball sorting machines, inspection equipment and automatic manufacturing equipment. 

Production Market

Northern American, Western Europe, South East Asia, Austria. Average annul sales volume achieve one million and four hundred thousands US Dollar.

Our service

Sample Analysis, OEM/ODM, Sample Order, Factory Tour, Free-replacement Warranty for Quality Issue.