Liebherr crawler crane in action inside giant cooling tower

Three days and 54 low loader journeys were required to erect the enormous crawler crane between the two cooling towers at the lignite power plant. Set up with its main 102 metre boom and a 78 metre luffing fly jib, the Liebherr crane hoisted the glass fibre-reinforced plastic components weighing up to 12 tonnes out of the power plant’s 117 metre high tower. The LR 1600/2 had to handle radii of up to 61 metres in the process. In fact, the Liebherr crawler crane required around half of the total of 525 tonnes of ballast used for the job just to raise and lower its impressively long lattice boom. The pallet with the suspended ballast was generally not required for the actual crane work. An additional 60 tonnes of ballast were used on the derrick boom for hoists involving a large radius.

There was no alternative to using the route over the opening in the internally hollow concrete body to replace the awkward components that make up the clean gas pipework. It was not possible to replace the pipe components using the only access point to the tower at a height of around ten metres as a result of their massive dimensions.