From the banks of the Dayun River to the depths of the earth: watching how "Chinese rolling cutters" pierce through technological barriers and go overseas
Dayun Riverbank, Wangyue Lake, Shandong Yiste Engineering Tools Co., Ltd. (hereinafter referred to asYiste "is located in the beautiful Dongchangfu District. Yiste was founded in 2011 and specializes in producing shield tunneling tools, anti well rolling cutters, pipe jacking tools, and shield tail brushes. With advanced technology, excellent product quality, and good reputation, Yiste has built a new overseas channel paved with hard alloy. Recently, Secretary General Su Hongxing of Shandong Equipment Manufacturing Industry Association visited the company to exchange ideas on relevant projects and technologies.
Before 2008, China relied entirely on imported shield tunneling machines for subway construction. A shield tunneling machine in Germany is sold for 40 million US dollars. During maintenance, the engineer brings his own toolbox, and even when the parts are removed, they are not allowed to be touched by Chinese people. What's even more outrageous is that if the machine breaks down, a tent must be set up to cover the maintenance site, afraid that Chinese people will sneak a peek at the technology!
When Yister built its first steel structure factory on the banks of the ancient canal, domestic shield tunneling tools were being sold by overseas brands'Stuck neck': The imported unit price of rolling cutters is outrageously high, the service life is outrageously short, and it takes a long time to wait for shipping parts if they break down - in the face of foreign technological bullying, 'we must pull foreign knives off the pedestal' has become the common aspiration of Chinese engineering tool workers.
Zhang Chuanzhou, Chairman and General Manager of Yiste, introduced that in order to break the foreign technology monopoly and establish an independent and controllable technology system, the company continues to increase research and development investment, attaches great importance to talent cultivation, and has hired the first batch of employees in the cityThe Vice President of Science and Technology has carried out precise coordination between government, industry, academia and research, and regularly carried out activities such as innovation platform construction, technical problem solving, new product research and development, and employee innovation training, transforming the "strongest brain" into the "optimal productivity", maintaining a leading position in the industry, and achieving a virtuous cycle of high-quality development of the enterprise and comprehensive improvement of employee quality. The company has cultivated an experienced team of design engineers who can quickly improve product structure, materials, and processes based on the problems that arise in each project. Their materials and products have become industry standards; In response to the shortcomings of the traditional rear mounted rolling cutter of the atmospheric pressure slurry shield machine, Yist and domestic equipment factories jointly designed and optimized the front mounted rolling cutter and front mounted cutting cylinder, greatly improving the stability of the rolling cutter; In the atmospheric pressure cutterhead, when the project is excavated to extremely hard rock, due to the large distance between trajectories, the face of the tunnel is prone to the phenomenon of bedrock protrusion. Yiste creatively developed a three blade rolling cutter, which successfully achieved domestic substitution and solved the "bottleneck" problem in the field of shield tunneling tools. In order to achieve a balance between rigidity and flexibility in steel, Yiste has collaborated with top domestic institutions to develop control processes that incorporate tungsten, vanadium, and rare earths into the molecular interstices in proportion, resulting in significantly improved hardness and toughness. In February 2022, global bearing giant SKF signed a strategic agreement with Ernst to export sealing technology in reverse to Europe, marking the first time a Chinese shield cutting tool company has "sold standards" overseas.
this"China hob" moves towards the whole country along the subway network: Shantou, Shenzhen, Dongguan, Fuzhou, Xiamen, Nanjing, Qingdao... Easter has established long-term cooperation with central enterprises such as China Railway, China Railway Construction Corporation, China State Construction Corporation, China Power Construction Corporation, China Communications Construction Corporation, and overseas large construction enterprises in the Americas, Europe, Africa, the Middle East, Southeast Asia, etc. Shield cutting tools are exported to Japan, Australia, the United States and countries along the "the Belt and Road".
While the technological barriers are being broken through, Yister is also breaking through its own creative innovationsThe growth tunnel. The company has 57 patented technologies and has the ability to integrate research and development design, processing and manufacturing, and technical services. It has participated in 146 bidding projects and its products cover hundreds of rail transit projects nationwide with the highest market share in the country. Yiste has grown from a start-up enterprise to a key backbone enterprise in Liaocheng High tech Zone, a top 100 enterprise in Liaocheng City, a national high-tech enterprise, a national specialized and innovative "little giant" enterprise, a provincial single champion enterprise, and a provincial quality benchmark enterprise. With stable performance, it injects vitality into its own development and regional social and economic growth.
The implementation of intelligent transformation and digital transformation in the manufacturing industry is an inevitable requirement for accelerating the construction of a modern industrial system supported by advanced manufacturing. Zhang Chuanzhou said:In the digital workshop after the technological transformation of Yiste, employees can see the processing progress and operation status of products in real time, as well as monitor the equipment operation status of each link, which improves production efficiency and product qualification rate. While improving product quality, the enterprise's digital intelligent equipment can also provide customized services for users according to different construction scenarios
As the demand for global tunnel excavation projects continues to grow, the demand for high-performance shield tunneling tools will also continue to expand. Yiste keeps up with the forefront technology trends in the industry, constantly launching more advanced, efficient, and intelligent products to meet the increasingly diverse needs of the market.The long wind and waves will sometimes break through, and the clouds and sails will sail across the vast sea. We have reason to believe that Yister cutting tools will continue to write unfinished poems belonging to the land of Qilu in unfamiliar rock layers, and also let the world hear - Made in China, it is chiseling the hardest night into the brightest morning.
With a resounding sound, another oneChinese rolling cutters embark on a journey
text Guo Guangli
Tusu Red Star Enterprise Official Website
