In the famous "Earth Crack of the World", the construction of the future world's tallest bridge, the Hua Jiang Gorge Bridge on the Liu'an Expressway, is in full swing. Several ZOOMLION tower cranes, produced with "Made in China" expertise, are achieving "Chinese speed" and "Chinese height" by building a passageway above this natural wonder.
As is well known, the construction of a bridge's main towers is often the most challenging task to complete, and it is especially true for the Hua Jiang Gorge Bridge due to the complex wind conditions in the area. With gusts reaching 12 in monitoring reports, the fifth tower is currently the highest suspension tower on the bridge, standing at 262 meters (equivalent to over 80 floors). To meet the strict requirements for tower crane specifications, ZOOMLION's WA7527-20KB flat-top tower crane boasts excellent lifting performance with a maximum lifting capacity of 20 tons and a maximum lifting speed of 95 meters per minute. Additionally, it can lift 2.7 tons at the tip of its 75-meter-long arm, putting it at an industry-leading level.The WA7527-20KB flat-top tower crane also delivers excellent safety and maneuverability. In terms of safety, it features triple protection for its lifting weight and double protection for torque to prevent overloading. The control system is equipped with intelligent detection and protection, preventing hook slip, and non-stop controls, while the arm can withstand sudden unloading and accidental collisions with a strong bolted joint connection. In terms of maneuverability, the innovative frequency conversion slewing system allows an instant response during lifting, which results in no shaking, no swinging during stopping, and a more stable operation. With a minimum moving rate of 5mm/sec. The crane can move with millimetric precision.
Currently, two WA7527-20KB flat-top tower cranes are installed at a height of over 280 meters, standing across from each other on the fifth and sixth main towers, rising high on the edge of the cliff. Under the bridge, the North Panjiang River flows gently, adding to the breathtaking beauty of the Hua Jiang Gorge.The Hua Jiang Gorge Bridge is a crucial control project of the Liu'an Expressway, with a height of 625 meters from the bridge to the water surface. Once completed, it will set a new world record for the vertical distance between a bridge and a water surface in mountainous areas, becoming the world's tallest bridge. ZOOMLION tower cranes, with their excellent lifting performance, stable operation and safe control function, will continue to provide essential equipment support for the ongoing project.