rss icon Subscribe
desktop mobile

New Crane for Offshore Wind Turbine Repair

Image: Huisman

Posted by Eric Haun

Huisman said it has developed a new lightweight crane type for the maintenance of offshore wind turbines: the 'Foldable Offshore Crane'.

The crane combines unparalleled lifting heights and more than sufficient lifting capacity with a foldable boom resulting in less required deck space and a low own weight of the crane, Huisman said. The selection of this crane for the maintenance of offshore wind turbines will therefore require a smaller, and thus more cost effective, jack-up vessel than currently required.
David Roodenburg, Director Strategy and Business Development said, "In addition to our innovative solutions for the installation of increasingly large wind turbines, we see many opportunities to improve efficiency, and thus lowering costs, for maintenance. With this new crane type we believe to have designed a cost-effective means to perform maintenance on existing and future wind turbines."
The ideal maintenance jack-up has a small deck, is cost-effective and quick to mobilize, has a limited lifting capacity (up to 500-600mt) and a lifting height of over 160m. The Huisman 'Foldable Offshore Crane' is well suited for these types of jack-ups as it is capable of exchanging WTG components to around 160m above deck level from a small jack-up (JU vessel length of +/-70 m). The boom of the crane is foldable which results in a very small footprint when in storage position. In addition, the folding mechanism leads to a much lighter crane compared to conventional cranes, which positively influences integration, and simplifies inspection and maintenance as the lifting hooks are safely stored inboard. By slightly tilting the knuckle, extra boom clearance is created. This simplifies lifting of large loads and reduces the required boom length to reach above the middle of a nacelle. Furthermore, the crane can be retrofitted on existing jack-ups which is especially useful for operators in need of more hook height in answer to the growing demands of the offshore wind industry.

May 2, 2017

 

Deck Machinery

Rapp Marine Deck Equipment Rounds out New Harley Barges

Photo: Rapp Marine

Rapp’s workboat market offerings span the full range of operator requirements. Their latest

Innovative Subsea Crane Ordered for RSV Conversion

Image: Rolls-Royce

Brazilian ship owning company CBO’s vessel CBO Manoella is currently being retrofitted from an

Containerized Control Room Delivered for SSCV Thialf

Photo: ELA Container Offshore

ELA Container Offshore GmbH delivered an offshore office container to Heerema Marine Contractors

Marine Equipment

Eltorque Offers Failsafe Valve Control

Photo: Eltorque

Manufacturer of electric valve actuators Eltorque has unveiled its new ‘Safe Intelligence’ concept

Rapp Marine Deck Equipment Rounds out New Harley Barges

Rapp’s workboat market offerings span the full range of operator requirements. Their latest contract provides a turnkey package.   Long known for delivering innovative and custom

Wärtsilä to Replace OSV’s Generator with Batteries

Viking Princess (Photo: Wärtsilä)

Wärtsilä informs it has signed an agreement with Norway’s Eidesvik Offshore to install a hybrid

Maritime Apps