The first main tower of Shuangyumen Bridge—a key control project in the second phase of the Ningbo-Zhoushan Port Liuheng Cross-Sea Bridge, China’s largest-span cross-sea bridge—has been successfully capped.

In this world-class cross-sea construction, XCMG’s tower crane fleet demonstrated robust capabilities and intelligent technology, supporting China Railway Major Bridge Engineering Group in topping out the 246.3-meter “offshore pillar.” The achievement earned widespread acclaim from central media and went viral online.

Confronting challenges like steep coastal terrain and limited space, XCMG deployed a “steel fleet” of three XGT8300-320S and one XGT7300-260S ultra-large tower cranes. This fleet facilitated the construction of two world-class cross-sea bridges in the second phase of the Liuheng Project, operating amidst wind and waves.

During the topping-out operation, XCMG’s cranes lifted hundred-ton components with millimeter precision to heights over 200 meters, withstanding sea winds up to Force 10 on the Beaufort scale—setting a new record in offshore bridge construction. Through coordinated multi-crane operations, XCMG innovatively overcame three world-class challenges: high-altitude precision, wind resistance stability, and lifting efficiency, demonstrating the excellence of Chinese equipment.

Since deployment, XCMG’s crane cluster has maintained full-capacity operation via an efficient collaborative model, significantly boosting construction efficiency and reliability during limited offshore work windows, witnessing the steady rise of the bridge towers.

Upon completion, the Liuheng Cross-Sea Bridge will reduce travel time between Zhoushan and Ningbo from 1 hour to 10 minutes, injecting strong momentum into the integrated development of the Yangtze River Delta.

Since the project began, XCMG’s tower cranes have operated in a highly efficient “collaborative mode,” maintaining full capacity throughout. They significantly improved both construction efficiency and reliability during limited offshore working windows, witnessing the steady rise of the bridge’s main tower.

Once completed, the Liuweng Cross-Sea Bridge will reduce travel time from Zhoushan to Ningbo from 1 hour to just 10 minutes, injecting strong momentum into the integrated development of the Yangtze River Delta.