When restoring a historic windmill, a mobile crane of the GMK5150XL type is used. The Pfeifer Group demonstrates how modern crane technology can also showcase its strengths in the preservation of cultural monuments – provided that the technical framework conditions are right.
The GMK5150XL is a five-axle mobile crane with a maximum load capacity of 150 tons. For renovation work on protected heritage buildings, however, maximum values are not the decisive factor, but rather precision at small working radii and the adaptability of the boom. Especially with historic windmills and their exposed location and often cramped access conditions, the question arises as to the optimal positioning location.
When using cranes for heritage protection, you as a crane service provider must consider several factors: the ground must not be damaged, the positioning area is often limited, and the components to be lifted – such as blades or roof structures – are often asymmetrical and susceptible to wind. The GMK5150XL features a modern support system with variable support width, which offers advantages on uneven terrain or with asymmetrical loading. The individual supports can be extended individually, allowing you to achieve a stable crane position even on irregular surfaces.
Another critical point is the tipping load at large outreach distances. Windmill blades are long, lightweight components with an unfavorable center of gravity. Here, precise load moment limitation and sensitive control are required. Modern mobile cranes such as the GMK5150XL are equipped with electronic safety systems that continuously monitor the lifting moment and provide timely warnings.
For you as a fleet manager or purchaser, what matters is: renovation projects often require longer downtimes and frequent reconfiguration. If your company regularly works on heritage preservation or other demanding special structures, you should focus on cranes with variable ballasting and modular boom systems. This saves setup time and increases flexibility.
The use of modern crane technology in heritage protection demonstrates: even outside classic applications such as building construction or infrastructure projects, technical versatility pays off. Those who renovate historic buildings do not necessarily need specialized cranes – but machines that can flexibly adapt to changing requirements.
