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Liebherr Crawler Crane Erects New Plant for Brazilian Steelmaker
A Liebherr LR 1750 crawler crane is being used to construct a new hot lamination plant for Brazilian steelmaker Usiminas at the company's rolling mill in Cubatão, Sao Paulo state. The crane, the largest of four Liebherr mobile cranes on the site, is owned by Latin America's biggest crane hire company, Locar Guindastes e Transportes Intermodais, and was being supplied under a two year contract. The other three cranes, which also belong to Locar, are an LTM 1220 and two LTM 1090 units. The crane is equipped with a 35 m main jib and a 70 m luffing jib, a configuration that Locar found to be most suitable for the height of the plant building, even though the LR 1750 can take a main boom of 140 m and a luffing fly jib of 105 m. The crane has a maximum lift capacity of 750 t at 7 m. The LR 1750 is next to the top-of-the-line model in Liebherr's LR series of lattice boom crawler cranes, designed for applications in power stations, refineries, bridge construction sites and the assembly of large-scale plants. Usiminas, rated as Brazil’s largest producer of steel products and responsible for almost 30% of the country’s steel output, is extending its existing plant at Cubatão with a new hot strip rolling mill designed to service the oil exploration industry with steel for oil platforms, probes and vessels. Civil works for the new hot lamination line at Cubatão began in March last year and the plant is scheduled to be operational in April 2011.
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