Liebherr Crane 20/03/2008

As far as construction projects go this has to be top of the list in terms of the most sensitive and highly technical renovation project any big construction management team has come across. The stats are an old Italian castle needing reconstruction work built on the highest pinnacle of the mountain region of Emilia Romagna that happens to sit in an earthquake zone. This is the project that Liebherr cranes were faced with in August 2007. The site was on an exposed mountain side that required special arrangements and innovations. The Liebherr crane model 250 EC-B 12 Litronic Flat-Top crane has been on the site working in tough conditions that include major lack of space around the castle. Erecting the 250 EC-B 12 Litronic Flat-Top crane meant assembling on foundation anchors instead of on an 8-metre high undercarriage. Deep excavations were not possible due to the earthquake zone. For this particular project, Liebherr cranes developed special foundation anchors that could handle and maintain the necessary stability of the crane and to secure it against collapse.

The particular delicate renovation work needed for the Rocchetta Mattei castle also meant Liebherr cranes used their simplified connect and work assembly system used for all Flat-Top cranes to insure the work could be completed in the time frame given. The quick fasteners for jibs and counter-jibs that come with the connect and work system were immediately helpful in the patented LiConnect connection system which also means a completely pre-installed compact head. Minimum power and electricity voltage was also an issue. The region could only provide a maximum of 30 kW in consumption. Luckily the Liebherr crane 250 EC-B 12 Litronic model has low starting currents, which were a further advantage under these conditions.

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