about us

Company profile

A comprehensive solution provider in the field of tunnel engineering

Chongqing Dunrui Technology Co., Ltd. Specializes in R&D, sales and technical services of core components such as TBM cutting tools, pipe jacking cutting tools, mining picks, drill bits, etc. for engineering equipment. Based in Southwest and serving the global market, provides high-reliability and long-life tunneling cutting tool solutions for projects such as tunnels, rail transit, water conservancy, mining, and compre-hensive pipe galleries. 
      
Relying on the own production base of Shandong Xinruishanhe Engineering Equipment Co., Ltd.,The factory is located in Liaocheng, Shandong Province, covering an area of over 20,000 square meters. there are multiple processing workshops with functions such as forging, machining, heat treatment, felding, and physical and chemical laboratories. It has over 100 sets of machining equipment and more than 10 sets of heat treatment equipment. With professional pro-duction facilities and skilled personnel, the company holds over100 patents related to TBM technology.

Additionally, it maintains a dedicated after-sales service team capable of addressing technical issues online and on-site within 12 hours, committed to delivering professional, meticulous,and comprehensive support throughout the entire project lifecycle.

100 +

the company holds over100 patents related to TBM technology

20000

covering an area of over 20,000 square meters

10 +

It has over 100 sets of machining equipment

cooperative customer

Shanxi Coking Coal

Shanxi Coking Coal

MCC

MCC

CGGC

CGGC

CSCEC

CSCEC

China Communications Construction

China Communications Construction

Power China

Power China

CRCC

CRCC

REG

REG

China Coal

China Coal

Wayang Holdings Limited

Wayang Holdings Limited

CHINA HUANENG

CHINA HUANENG

Shaanxi Coal

Shaanxi Coal

Company Environment

Company Building
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Qualifications and Honors

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