On January 26th, China's first full-section rock tunnel boring machine with a diameter of 8.03 meters was off the assembly line in Zhengzhou. Its downline completely broke the situation that China's rock tunneling machines are totally dependent on imports and their core technologies are controlled by foreign manufacturers.
Li Quanwei, general manager of Xingda Heavy Industry Co., Ltd., said: “The rock boring machine that we have just developed independently has a huge rotatable cutter head that we do.â€
According to the editors of China Construction Machinery Business Network, the rotary cutter head is a key component of the roadheader. During the operation of the roadheader, the cutter plate is pressed against the wall of the rock under the action of the thrust force, and the hard rock can be cut by means of a disk-shaped hob, so that the cross-section of the tunnel can be shaped once. "Xingda Heavy Industry has overcome difficulties such as short construction period and difficulty in heat treatment, and high-quality cutter cutting has been completed."
In the manufacturing process of cutterheads with a diameter of 4.8 meters and a weight of 160 tons, Xingda Heavy Industry encountered a series of welding and processing technology problems. They took advantage of the flexible mechanism of private enterprises, adjusted the process routes in time, and boldly adopted imported welding nozzles. Heavy purchase of advanced special tools. After unremitting innovation and tenacious research, the company finally completed the cutter-tapping task with high quality. At the time of product acceptance, the German supervisor employed by China Railway Equipment erected a thumbs-up.
Founded in 1992, Xingda Heavy Industry, formerly known as Matun Xingda Machinery Factory in Mengjin County, is a company with mechanical processing, manufacturing, assembly, and comprehensive capabilities. With its excellent product quality and exquisite processing technology, it has become a production partner of many companies such as China One Tractor, CITIC Heavy Industry, Taiyuan Heavy Industry, and Wuhan Heavy Machine Tool Group. In October last year, through an open tender, Xingda Heavy Industry won the contract for the supply of cutters for the roadheader.
Li Quanwei, general manager of Xingda Heavy Industry Co., Ltd., said: “The rock boring machine that we have just developed independently has a huge rotatable cutter head that we do.â€
According to the editors of China Construction Machinery Business Network, the rotary cutter head is a key component of the roadheader. During the operation of the roadheader, the cutter plate is pressed against the wall of the rock under the action of the thrust force, and the hard rock can be cut by means of a disk-shaped hob, so that the cross-section of the tunnel can be shaped once. "Xingda Heavy Industry has overcome difficulties such as short construction period and difficulty in heat treatment, and high-quality cutter cutting has been completed."
In the manufacturing process of cutterheads with a diameter of 4.8 meters and a weight of 160 tons, Xingda Heavy Industry encountered a series of welding and processing technology problems. They took advantage of the flexible mechanism of private enterprises, adjusted the process routes in time, and boldly adopted imported welding nozzles. Heavy purchase of advanced special tools. After unremitting innovation and tenacious research, the company finally completed the cutter-tapping task with high quality. At the time of product acceptance, the German supervisor employed by China Railway Equipment erected a thumbs-up.
Founded in 1992, Xingda Heavy Industry, formerly known as Matun Xingda Machinery Factory in Mengjin County, is a company with mechanical processing, manufacturing, assembly, and comprehensive capabilities. With its excellent product quality and exquisite processing technology, it has become a production partner of many companies such as China One Tractor, CITIC Heavy Industry, Taiyuan Heavy Industry, and Wuhan Heavy Machine Tool Group. In October last year, through an open tender, Xingda Heavy Industry won the contract for the supply of cutters for the roadheader.
Related News: Roadheader Offline Technology
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This article is China Engineering Machinery Business Network () original, if you need to reprint must be in the form of hyperlinks to indicate the source, is strictly prohibited from any changes in the original text.
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