World's Largest Top-Slewing Tower Crane Rolls off Production Line

The largest top-slewing tower crane in the world recently went off the production line in Changde, Central China's Hunan Province after 18 months of development.

The slewing tower crane has a maximum hoisting capacity of 450 metric tons and a maximum lifting moment of 12,500 tons per meter, both the most of its kind in the world, an equivalent to hoisting 300 cars at one time.

Equipped with the ETI2.0 smart control system, the machine can be digitally controlled and operated. Its high-power and ultra-high-voltage power supply and distribution technology can effectively solve power supply problems during bridge tower engineering.

The machine was invested by CCCC Second Harbor Engineering Company Ltd., a subsidiary of China Communications Construction Company Limited (CCCC) and jointly developed by CCCC and Zoomlion Heavy Industry Science & Technology Co., Ltd..

The world's largest top-slewing tower crane is ready for operation. [Photo/sasac.gov.cn]

It will be used in the main tower hoisting of the Changtai Yangtze River Bridge and the Chaoma Yangtze River Bridge in East China's Jiangsu and Anhui provinces.

The first bridge is the world's longest-span railway-highway dual-use cable-stayed bridge with a 352-meter-high main tower, the highest in the world, while the second is the world's longest-span three-tower cable-stayed bridge.

(Executive editor: Niu Yilin)