Potain cranes complete bridge work on Sichuan-Tibet railway

The Sichuan-Tibet railway is a US$50 billion mega project which will see a new railway line running from the Sichuan capital of Chengdu through to Lhasa in Tibet.

It is said to be one of the world’s most challenging rail projects. The 1,600 km track includes sections that run at extreme elevations – the route passes across the Tibetan plateau, also known as the Roof of the World, which has an average elevation of 4,500 metres – while some stretches must be able to withstand seismic activity.

According to related reports, about 80 per cent of the project involves construction of either tunnels or bridges to support the new track.

Two of the three Potain MC 480 tower cranes which worked on the rail bridge project (Photo: Potain)

As part of this, three Potain MC 480 tower cranes have been used in construction of the Luding Dadu river bridge. The cranes started on the project in 2022 and work was completed in May 2026.

Purchased by Xiamen Vigors Mechanical Equipment, the cranes were operated by China Railway Major Bridge Engineering Group. They were selected for their lifting ability under challenging conditions.

Over the course of the project the cranes were used in construction of the bridge pylons. Technical support, parts and service came from the Potain factory in Zhangjiagang, with additional help from Xiamen Vigors. The partners ensured the cranes were ready for action across the full build schedule.

Rigged with jib lengths of between 40 and 60 metres, the cranes used their full 25 tonne lifting capacity. All while contending with strong winds within the steep canyon walls.

Despite a 21 metre steel formwork which offered no tie-offs for the cranes, the 262.8 and 255.8 metre pylons were completed on schedule.

“This project highlights the reliability and performance that customers expect from Potain cranes,” said Wang Zhiwei, head of engineering at Manitowoc China.

“The MC 480 continues to deliver the lifting capability and durability required for demanding infrastructure applications.”

The Luding Dadu river bridge (Photo: Potain)