en.Wedoany.com Reported - The world's first large-diameter mining TBM "Guofeng" with an R15-meter extremely small turning radius, independently developed by China's Jiangsu Shendun Engineering Machinery Co., Ltd., has achieved a cumulative advance of over 600 meters in the metal and non-metal mining sector. It took 2 months and 5 days from equipment commissioning to breaking through the 600-meter mark, setting a new advance speed record for Jiangsu Shendun in the field of mining TBMs. The company implemented multiple targeted design optimizations for the special geological conditions of metal and non-metal mines, effectively enhancing the equipment's tunneling efficiency in such mines. Jiangsu Shendun previously achieved an advance of 350 meters in 2 months in the coal mining sector, and the "Guofeng" has increased the advance speed in metal and non-metal mines by over 70%.
Currently, mining full-face hard rock tunnel boring machines have been widely applied in fields such as coal mines and metal and non-metal mines, with monthly advance rates reaching 600 to 1,500 meters, significantly improving efficiency compared to traditional drilling and blasting methods. The practice of the "Guofeng" mining TBM in metal and non-metal mines provides effective validation for roadway construction under similarly complex geological conditions. As a National High-Tech Enterprise and a National-Level Specialized and Sophisticated "Little Giant" Enterprise, Jiangsu Shendun has obtained a total of 45 authorized patents, with invention patents accounting for over 90%, and has taken the lead in formulating multiple industry standards. As of 2023, Shendun's domestic market share has exceeded 50%, ranking first in the industry for two consecutive years. It has customized equipment for multiple coal mines in Heilongjiang, Shanxi, Shaanxi, Henan, and other regions, with an annual output value exceeding 1 billion yuan. In the more than 30 pairs of mines nationwide where Shendun's equipment has been deployed, it has set Chinese mining rock roadway construction records, including a maximum single-shift advance of 28.2 meters, a maximum daily advance of 51 meters, and a maximum monthly advance of 641 meters, with tunneling efficiency improved by 4 to 7 times compared to traditional methods.
The company stated that it will persist in custom-building next-generation mining TBM equipment for mines, promote the implementation of tunneling technology in metal and non-metal mines, and continuously consolidate its leading position in the mining TBM niche segment. Jiangsu Shendun is currently investing 1.1 billion yuan to build a new factory area, planning an annual production capacity of 30 TBMs. Upon full completion of the project, the estimated annual revenue will be 1 billion yuan. The successful practice of the "Guofeng" in metal and non-metal mines provides an important reference for the expansion of mining TBMs from coal mines to the broader mining market.
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