Detailed Introduction to TBM Cutters, RBM Roller Cutters, RCD Roller Cutters & Wear & Heat-Resistant Materials (Customized Version for Overseas Markets)

This paper focuses on customized demands for overseas markets, introducing four core products: TBM Cutters, Raise Boring Machine (RBM) Roller Cutters, Reverse Circulation Drilling (RCD) Roller Cutters, and Wear & Heat-Resistant Materials. It briefly describes their specifications, advantages, application scenarios and quality standards. The products are compatible with mainstream overseas equipment models, covering various industries and geological conditions. Adopting advanced manufacturing processes, all products are certified under ISO9001 and can be supported with relevant international certifications.OEM/ODM customization is available. Supported by an annual production capacity of 30,000 sets of cutters and over 10,000 tons of wear & heat-resistant materials, together with multilingual technical support and full-cycle after-sales service, the products fully meet the supporting requirements of complex overseas engineering projects.

2026-03-10

Global Shield Tunneling Machine Tool Technology Iteration: Analysis of Wear-Resistant Material Innovation Directions

Abstract:With the steady advancement of global underground infrastructure construction, the wear-resistant material technology of shield tunneling machine tools is accelerating iteration and upgrading. Its performance level directly determines the operational efficiency of shield equipment and the control effect of the whole life cycle cost of projects. Currently, the innovation of wear-resistant materials for shield tunneling machine tools presents three core development directions: composite diversification, intelligent technology integration, and green remanufacturing, which will continue to promote the upgrading and improvement of tool products towards high performance and low carbonization.

2026-03-02

3 Minutes to Understand the Wisdom of China's Shield Machines in Metro Construction

This article adopts the "3-Minute Read" perspective to introduce the core role of China's shield tunneling machine as a "mobile smart factory" in metro tunnel construction. It analyzes the principle of achieving "one-pass tunnel completion" through five precise steps, highlighting its significance as an embodiment of the transition from "Made in China" to "Intelligently Made in China" and the applied value of Chinese engineering wisdom.

2026-02-24

A Letter to Our Distinguished Visitors Worldwide

2026-02-06

China's "Deep-sea Space Station" Completes Debut

On February 6, the "Deep-sea Space Station" completed its first application at the Jintang Undersea Tunnel. The 75-meter high-pressure operation broke through the traditional depth limit, marking a new breakthrough in China’s deep-buried tunnel construction technology and filling the domestic gap in relevant fields.

2026-02-06

2026 Infrastructure Construction: Surging Demand for Shield Tunneling Equipment, Wear-Resistant Materials Embrace Growth Momentum

The domestic infrastructure sector kicked off 2026 with robust prosperity. Fueled by the dual support of policies and funding, major underground projects have been intensively launched, driving a surge in demand for shield tunneling equipment. This has in turn unleashed definite growth potential for upstream consumable sectors such as wear-resistant materials and seals. With the expansion of application scenarios and breakthroughs in overseas exports, the industrial chain synergy effect has become increasingly prominent, ushering the industry into an era of value revaluation and high-quality development opportunities.

2026-01-30

Company Leaders Attend the Third 2025 Executive Vice Chairman Meeting of the International Association for Large-Diameter Engineering Shafts, Piles and Deep Foundations

On January 10, 2026, the Third 2025 Executive Vice Chairman Meeting of the International Association for Large-Diameter Engineering Shafts, Piles and Deep Foundations was successfully held in Ningbo. Mr. Chao Huanqing, Chairman of our company, Mr. Yang Jingrui, Chairman of our controlled subsidiary (Luoyang Jiujiu Wear-Resistant Material Manufacturing Co., Ltd.), and Mr. Jin Wenge, Vice General Manager of our company, attended the meeting as relevant members of the Association .

2026-01-12

World's longest expressway tunnel opens to traffic in Xinjiang

China Daily Online：An aerial drone photo taken on Dec 20, 2025 shows a view of Urumqi-Yuli Expressway in Northwest China's Xinjiang Uygur autonomous region.

2026-01-12

Congratulations to the "Zhenxing" tunnel boring machine on the successful completion of its cutter inspection!

The "Zhenxing" tunnel boring machine used for the right line of the Yanlu Passage over-river project is a 15-meter-class, ultra-large-diameter slurry shield designed and manufactured by CCCC Tianhe specifically for Nanjing's cross-river tunnel. The tunnel’s shield-driven section spans a total length of 2,975 meters. This project features significant characteristics such as a large cross-section, high water pressure, extended distances, and exceptionally abrasive ground conditions. Moreover, most of the construction lies beneath the riverbed, with the hardest rock layers in the hard-rock sections exceeding 70 MPa in strength. The diverse and complex geological conditions place extremely stringent demands on the cutting tools used during excavation.

2020-07-03

The 6th Session, 2nd Meeting of the Board of Directors of the International Association for Large-Diameter Engineering Wells (Piles) was held solemnly.

Abstract: Mr. Chao Huanqing, Vice Chairman and Chairman of Luoyang Jiujiu Technology Co., Ltd., provided several explanations regarding the amendments to the Articles of Association. Based on the feedback received on the amendments to the Articles of Association, the Supervisory Board was elected. Newly appointed Chairman of the Supervisory Board, Mr. Yang Jingrui, delivered a statement outlining the duties, tasks, and scope of authority of the Supervisory Board.

2018-11-24