Bauma 2007: special crane for dismantling tower cranes
Liebherr presents the new 200 DR 5-10 derrick crane, Derrick cranes are principally suitable for hoisting extremely head loads, and are used as stationary installations for the prefabrication of steel bridges, the construction of tall buildings with a steel skeleton frame or for special dismantling tasks. The new 200 DR 5-10 was designed as a dismantling crane for the stripping down of cranes on tall buildings, bridge pylons and telecommunication towers. This why the dimensions and weights of all the individual parts of the new crane are designed to enable them to be dismantled solely with the aid of a very small hoist and removed via lift shafts in buildings.
The Liebherr 200 DR 5-10 derrick crane has no trouble dismantling tower cranes in the 300-mt-plus payload category. Since a crane for the purpose of dismantling tower crane machinery is generally used at very great heights, its standard construction includes hoisting equipment for heights of 320 m in single- and double-reeved operation.
Depending on the purpose of the application, the new derrick crane can be configured with load moments of 100 or 200 mt. The supports for the 200 DR 5-10 are articulated and are adapted to the structural circumstances of the substructure on the building in order to achieve optimum distribution of the support forces. Depending on the application, the crane can be used with or without supports, known as 'stiff legs'. This ensures that the crane can be adapted to any application.
