HEAVY LIFTING Ӏ SECTOR REPORT
STRONGEST LAND-BASED CRANE EVER FROM MAMMOET BEING ASSEMBLED
Engineered heavy lifting and transport specialist Mammoet is assembling what will be world’s strongest land-based crane, the SK6000 ring crane, at its Westdorpe facility in the Netherlands. All parts have now been delivered to the site; initial works include assembly of the crane’s base frame, power packs and control room. Mammoet’s auxiliary cranes are supporting the build, including two 250-tonne crawler cranes and a 140-tonne Gottwald mobile harbour crane. The crane is designed to deliver a maximum capacity of 6,000 tonnes with the capability to lift components up to 3,000 tonnes to a height of 220 metres. It will offer full electric operation. Its intended use is for offshore wind projects: it will be used to lift latest generation offshore wind turbine components, which are getting ever bigger to achieve higher yields. ‘Offshore wind farms are moving to deeper waters and reaching higher to find stronger wind flows,’ says the company. ‘As a result, the scale of turbine and foundation components, in both floating and fixed offshore wind farms, continue to grow.’ Bottom-fixed jackets and monopiles weighing between 2,000 and
3,000 tonnes are now common; next-generation turbines will be even larger. Generating 15MW and 20MW, their towers will rise to 150 metres and beyond. Hence Mammoet’s development of the SK6000. Mammoet says that, with it, customers can build more efficiently in larger pieces, shrinking the logistics, integration and mobilisation phases of projects. ‘In the oil and gas sector the crane helps new builds and expansion projects to benefit from economies of scale on a level never before seen,’ it claims.
The SK6000 builds on the popularity of Mammoet’s established SK190 and SK350 series cranes, and in the construction of new modular nuclear facilities. Koen Brouwers, project manager for the SK6000, said: “This is a thrilling new chapter for Mammoet and modular construction in heavy industry, as we see the SK6000 taking shape. It will offer a hook height, outreach, and lifting capacity far in excess of any crane on the market.” Cranes Today will be visiting Mammoet's SK6000 in Westdorpe at the end of August; stay tuned for more on this crane...
38 CRANES TODAY
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