Backed by robust equipment performance and sophisticated construction technology, the cut slot raise boring machine from Hunan Maitong Intelligent successfully resolved a major stuck drill rod failure at the 5.5m raise of Tibet Julong Copper Mine. Adopting a domestically pioneering rescue construction method for stuck drill rods, the team broke a two-month-long production shutdown at the underground mine within merely 5 days, earning high recognition from the client with outstanding technical strength.
Located at an altitude of over 4,000 meters, Tibet Julong Copper Mine features harsh geological conditions, high rock hardness and dense rock fractures. Steel arch supports cover the top of the raise working face, resulting in far more complex operating conditions than ordinary mines. During construction of a 65-meter-deep raise with a diameter of 5.5 meters, the original drilling rig suffered a severe stuck drill rod accident, completely halting all on-site operations. The shutdown lasted two months, severely disrupting the mine’s overall construction schedule and triggering massive schedule delays and economic losses.
To resume normal production, Julong Mining and its construction contractor tested multiple rescue solutions, yet none yielded results. Faced with mounting losses from prolonged downtime, the mine and construction team turned to Hunan Maitong Intelligent Equipment Co., Ltd. and issued an urgent request for emergency support.
Upon receiving the emergency assignment, Maitong Intelligent responded rapidly. Its technical team held special seminars and customized a targeted rescue construction plan. To minimize the client’s financial losses, the company immediately suspended an ongoing construction project in Gansu and dispatched its in-service cut slot raise boring machine to travel over 2,500 kilometers to Tibet Julong Copper Mine for emergency treatment.
After arriving at the site, the Maitong team flexibly adjusted operation strategies based on underground working conditions and innovatively optimized construction techniques. In just 5 days, the slag drainage shaft was fully connected. The 311mm-diameter drill rod wedged firmly in rock strata was gradually loosened and safely extracted, completely breaking the two-month construction deadlock and fully restoring underground mining operations.
This emergency rescue operation relieved the client’s urgent predicament and recovered substantial economic losses, winning full recognition and trust from the partner. Though Hunan Maitong Intelligent has only operated in the mining equipment sector for two years, it has undertaken numerous high-difficulty, high-risk complex underground construction projects and delivered successful solutions every time, quickly gaining widespread market recognition and favorable customer testimonials. This rescue case further demonstrates Maitong Intelligent’s superior product quality, high construction efficiency and rapid-response service advantages.
Rooted in underground mining construction, Maitong Intelligent will continue to deliver innovative solutions for complicated mining construction challenges. Moving forward, the company looks forward to strengthening exchanges and collaboration with industry peers to jointly advance underground construction techniques and technologies, and jointly drive the safe, efficient, high-quality and sound development of the underground mining industry.
