Our History

▲ 2010 Oct. 

Yueqing Three-Ring Precision Machinery Co.,ltd was established in Yueqing, Wenzhou City.

We are determined to produce high quality linear motion products.

▲ 2011 Dec.

Yueqing Three-Ring Precision Machinery Co.,ltd got trademark ”CHTR”.

CHTR was certified for ISO9001.

Factory is about 1,000㎡, about 30 employee, 2 production lines, annual sales is about USD 350,000.

▲ 2012 Jul.

CHTR International Trade Department was established

▲ 2015 Dec.

CHTR move to new factory in Xinguang Industrial Zone.

Factory is about 3,000㎡, about 150 employee, 7 production lines, annual sales is about USD 6,000,000.

▲ 2017 Dec.

Completion of new factory total 10,000㎡ with an administration office.

CHTR have about 300 employee, 15 production lines, annual sales is about USD25,000,000.

Our Factory

Yueqing Three-ring Precision Machinery Co., Ltd (CHTR) is established in 2010 which is professionally manufacturing linear motion products. Our company is located in Liushi town which is famous for the birthplace of "Wenzhou Market Economy Pattern" in China. It is adjacent to Wenzhou Airport, Wenzhou Railway Station and Ningbo-Taizhou-Wenzhou Expressway that make us have a great advantage of transportation and further development.

CHTR Products are popular in the domestic market. depanding on the advanced manufacturing technology and excelsior attitude of senior technician, our TRH&TRS serires products have build a very good brand image during our customer and the market share is rising year and year,and we start to develop our oversea market in 2014, and received lots of good feedback from the new market till now.

We hope CHTR can be know all over the world and our customer will not regret to choose us to be their supplier. We welcome customers, business associations and friends from all over the world to come to our company for communication, guidance and business negotiation.We will be diligent, honest and consistent, providing our customers with quality products and perfect pre-sales and after-sales services.

We sincerely hope you contact us and seek cooperation for mutual benefits to create a common development and brilliant future. Choose us, you get the right one!


Our Product

Linear Guideway

Ball Screw

Linear Guide Assembly


Product Application



◆ Measuring

◆ Semiconductor


◆ Medical


◆ Packing


◆ Automation


Our Certificate


Production Equipment

◆ 15 units of rail grinding machines

◆ 5 units of large-scale plane grinding machines

◆ 35 units of CNC machining

◆ 40 units of CNC linear guide block ballway grinding machine