Manufacturing is the foundation of a country and the foundation of a strong country. Equipment manufacturing is an important tool of the country, the backbone of the manufacturing industry, and the focus of international competition.

Recently, the Jinghua number, which is being excavated 50 meters below the ground for the reconstruction project of Beijing East Sixth Ring Road, is one of the largest shield machines currently under construction in China. In April 2022, it successfully passed through the two super-risk sources of the Beijing sub-center transportation hub and the Beijing-Harbin Railway, and is now steadily advancing at a speed of about 20 meters per day.

Internationally, the standard of shield machine construction is generally that the settlement does not exceed 30 mm and the uplift does not exceed 10 mm. The control accuracy of this Chinese shield machine is much higher than the international standard.

Today, more than 90% of the shield machines used in China's tunnel projects are made in China, and the market share of Chinese shield machines in the world is close to 70%.

In recent years, a large number of railway and highway infrastructure constructions have begun to accelerate, water diversion projects in many places, and urban underground pipe gallery construction have begun. The demand for shield machines has surged, reaching hundreds of units every year.Editor/Ma Xue