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Huisman to build world’s largest cranes in China for installing offshore wind turbines

Dutch marine firm wins contract to construct cranes in its Chinese facility for world’s largest offshore wind installation vessel

offshore wind farm installation vessel
The main crane being built in China will be the largest of its kind for installing offshore wind turbines

Netherlands-based maritime company Huisman has won a contract to build in China the world's largest cranes for installing offshore wind turbines. The firm will deliver three cranes for UK firm Seajacks' latest record-breaking offshore wind farm installation vessel, Scylla, announced in June. The offshore wind cranes will be the largest and most advanced of their kind, according to Huisman.

The cranes, which will be used to help construct and install offshore wind turbines, will be built at Huisman's production facility in Xiamen, China. Huisman will supply two 50mt auxiliary cranes and a 1,500mt main crane, which will also be the largest of its kind, the Dutch company has said.

The main crane will lift as much as 1,500mt at a 32m radius. It will be installed on top of the starboard-aft jack house, which holds one of the four 105m long legs of the Scylla jack-up vessel. The 110m long parallel crane boom can also be stored on top of the starboard-forward jack house. This creates a useable deck space in excess of 5000 sq m.

The cranes will be equipped with an anti-collision system and parking assistance to avoid damage to the crane boom.

Gerben Roks, Huisman's product and sales manager, said he hopes the company will build on crane technology for installing wind turbines. "We will keep building on our knowledge and experience to further expand our crane range in the field of dedicated wind turbine installation cranes," he said.

Offshore wind turbine installation vessels are becoming a focal point in wind power developments across the BRIC countries in 2013. This includes a manufacturing facility being built in Brazil, which was announced in March this year, to help develop technology for offshore wind vessels.

According to Huisman, the main crane has been specifically designed to meet the demands of UK and Scottish territorial waters and other North West European offshore wind markets. Delivery is scheduled for the first half of 2015.