Three Linden Comansa tower cranes are being used to help build the Ituango hydroelectric power plant, set to become Colombia’s biggest power plant and currently the largest infrastructure project under way in the country. Once the plant starts operating at the end of 2018, it will generate up to 2,400 mw of clean energy, nearly twice that of the San Carlos power plant, currently the country’s largest with a generating capacity of 1,240 mw.
The CCC Ituango Consortium, made up of the Colombian construction companies Conconcreto and Coninsa Ramón H, as well as the Brazilian construction company Camargo Corrêa, are carrying out the main civil works on this project for EPM (Empresas Públicas de Medellín, Colombia’s main utilities company), which will involve a 70 km long reservoir. There are currently three Linden Comansa tower cranes installed on one side of the dam that is being built, which will reach a breathtaking height of 225 m.
Two of them, one model 21LC450 and one 16LC185, are being used to build a controlled spillway with a design flow of 22,600 cu m/sec. Both these cranes have been set up to reach a height of 60 m and have been assembled on a folding cross base with travelling system so they can be moved on tracks installed on the ground. Therefore, they are able to cover a greater area of the construction site much more quickly than if they had to be dismantled and assembled each time they are moved, thus meaning savings in terms of time and costs. The 21LC450 has a maximum load capacity of 20 tonnes and a height under hook of 54.6 m, whilst the 16LC185 can handle a load of up to 8 tonnes and has a height under hook of 59.5 m.
The third Linden Comansa crane, an 11LC160, with a maximum load capacity of 8 tonnes, has been in three different locations, always very close to the other two cranes. At all these locations, the 11LC160 was set up with a height under hook of 40 m and, like the other two cranes, on a folding base with travelling system in order to be able to be moved quickly. This way it can also lift the different loads over a larger area than a stationary crane would be able to, thus making the very best use of resources