Warmly celebrating the launch of Jiujiu Company's new site

Warmly celebrate the launch of Jiujiu Company's new site!

2013-08-26

Development Updates on Shield Machine Cutter Tools from Luoyang Jiujiu Company

China began developing tunnel boring machines in the early 1960s and conducted extensive exploratory experiments on roller cutter materials. However, at that time, there were no specialized manufacturers of roller cutters, and research institutions lacked sufficient funding to support these experimental efforts. As a result, the development of roller cutters fell short of expectations, though some exploration was carried out on scraper tools for TBM operations in weak geological conditions. By the mid-1990s, the Ministry of Railways initiated a feasibility study for adopting the TBM (Tunnel Boring Machine) approach in the Qinling Tunnel project of the Xi'kang Railway. Since the roller cutter segments are the primary rock-breaking components of TBMs, their high consumption significantly increased construction costs and delayed project timelines. Moreover, imported cutter segments were not only expensive but also suffered from lengthy delivery times. In response, the Ministry of Railways established a dedicated task force in the late 1990s to tackle the challenge of domestically producing disc-type roller cutters for full-face tunneling machines.

2013-08-26

The company has been honored as the Henan Province Shield Machine Cutter Engineering Technology Research Center.

In 2010, our company, as a high-tech enterprise located within the Luoyang High-Tech Development Zone, was recognized for its outstanding achievements in technological innovation and advancements. We have received provincial-level or higher awards for scientific and technological progress, possess core industry technologies backed by independent intellectual property rights, and demonstrate strong industry influence, firmly positioning us as a leader in our field. In accordance with the "Key Work Priorities for the Construction of Henan Provincial Engineering Technology Research Centers in 2010," our company actively participated in the application process for establishing such a center. Thanks to the dedicated collaboration of leaders and employees across all departments, our proposal was thoroughly reviewed and validated by experts from the Henan Provincial Department of Science and Technology. As a result, our company was officially approved to establish the Henan Provincial Shield Machine Cutter Engineering Technology Research Center. This milestone is pivotal in accelerating our company’s ability to drive independent innovation, enhancing the commercialization of scientific and technological achievements, and bolstering the development of our innovation team while nurturing top-tier scientific talent. Moving forward, we are committed to intensifying R&D activities, ensuring that the newly established engineering technology research center becomes a powerful catalyst for both our organization and the broader industry—propelling sustainable and rapid growth in the years ahead.

2013-08-26