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Products

Committed to the research, development, and production of tunneling construction and excavation consumables

Disc Cutter

The principle of rolling cutter rock breaking relies on the impact crushing and shearing crushing actions generated by the rolling of the cutter to achieve the purpose of breaking rocks.

Disc Cutter Ring

The material of the disc cutter is the key to whether it can handle hard rock tunneling. Our company offers different types of cutter ring materials for different geological formations.

Mining Cutter Picks

Specially designed for coal, mudstone and shale, they feature sharp alloy tips, smooth slag discharge and high cutting efficiency.

Soft Ground Cutting Tools

Specially designed for coal, mudstone and shale, they feature sharp alloy tips, smooth slag discharge and high cutting efficiency.

TBM Cutter Accessories

Hydraulic anchor drilling rig system: drill bit, power head, motor, tension sleeve, clamping block, anchor rod

Recommended Products

Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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Disc Cutter Ring

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about

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.

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100 +

the company holds over100 patents related to TBM technology

20000

covering an area of over 20,000 square meters

110 +

It has over 100 sets of machining equipment

cooperative customer

Shanxi Coking Coal
MCC
CGGC
CSCEC
China Communications Construction
Power China
CRCC
REG
China Coal
Wayang Holdings Limited
CHINA HUANENG
Shaanxi Coal

Cooperation Case

Fujian Beigao Main Canal, a major national water conservancy project

Fujian Beigao Main Canal, a major national water conservancy project

Section 15 of the Sichuan Tibet Railway, a major national railway project

Section 15 of the Sichuan Tibet Railway, a major national railway project

Shaanxi Coal Group West Korea TBM excavation

Shaanxi Coal Group West Korea TBM excavation

The South to North Water Diversion Middle Route Project diverts water from the Yangtze River to supplement the Han River

The South to North Water Diversion Middle Route Project diverts water from the Yangtze River to supplement the Han River

Jinneng Holdings Group Zhaozhuang Coal Mine

Jinneng Holdings Group Zhaozhuang Coal Mine

Huaneng Qingyang Coal and Electricity Xinzhuang Coal Mine

Huaneng Qingyang Coal and Electricity Xinzhuang Coal Mine

Lu'an Group Xinyuan Coal Mine

Lu'an Group Xinyuan Coal Mine

Shandong Energy Northwest Mining Zhengtong Coal Mine

Shandong Energy Northwest Mining Zhengtong Coal Mine

Shanxi Huayang New Materials Group

Shanxi Huayang New Materials Group

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Our advantages

01.

Our own production base, direct supply from the source, with better cost-effectiveness and more stable delivery

02.

Full-process quality control, longer lifespan and lower failure rate

03.

Adequate stock + quick customization, with 24-hour technical response

BLOG

The difference between double-edged rolling cutters and single edged rolling cutters

2026-04-30

Single blade rolling cutter: With only one blade edge, it has a simple structure and low manufacturing and maintenance costs.

CNC Tool Maintenance Methods

2026-04-30

Use a soft bristled brush and specialized cleaning agent to gently brush along the edge direction to remove iron filings and oil stains.

Advantages of CNC Shell Cutting Tools

2026-04-30

High material removal rate: Shell milling cutters have multiple teeth (blades) that can participate in cutting simultaneously
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