Proudly certified by AS9100 in year 2014 | Yieh Chen's Spline Rolling Machines: Essential Equipment for Automotive and Aerospace Drivetrains

Yieh Chen Machinery Co., Ltd. is a leader in the global manufacturing of high-precision gears and transmission components. This ISO9001 & AS9100 certified company, a member of the Six Star Group, offers a comprehensive range of products including spur gears, helical gears, gear racks, worms, worm shafts, and various specialized machines. Yieh Chen's commitment to quality and innovation is evident in their use of advanced technologies and adherence to stringent international standards, making their products essential for diverse and demanding applications in industries such as aerospace and agriculture.

Yieh Chen Machinery Co., Ltd is the affiliate of Six Star Group. Six Star was founded in 1975 by Six brothers and devoted to the manufacturing of precision gear products. Yieh Chen Machinery was established in 1984 into the market of machinery industry and is dedicated to produce Thread rolling machine and Spline rolling machine with high quality and durable lifetime. Yieh Chen Machinery Co., Ltd. is a gear manufacturer of gear for air screw compresser, cnc lathes, machining center, printing machines and more. Also, we providing quality thread rolling machine, spline rolling machine, multi forming machine.

Yieh Chen has been offering customers durable machine tools for manufacturing, both with advanced technology and 40 years of experience, Yieh Chen ensures that each customer's requirements are met.