Huisman will deliver a 3000mt+ Leg Encircling Crane to Havfram Wind, an installation contractor for offshore wind turbines. The crane will be installed on Havrfram’s second NG-20000X wind turbine installation vessel (WTIV).
The vessel has been ordered at CIMC Raffles. Huisman‘s contract follows an earlier order in December 2022 for an identical crane to be installed on the first vessel.
The full electric LEC will be outfitted with a unique 155-metre boom and has a lifting height of approximately 180 metres above deck. The design has been finetuned according to specific turbine and foundation installation requirements defined by Havfram’s experienced engineering team.
The crane will be produced at Huisman’s production facility in Zhangzhou, China.
Leg Encircling Crane features
The Huisman LEC is lightweight and reliable, has high positioning accuracy and is highly energy efficient, contributing to a reduced emissions footprint during the installation of increasingly large offshore wind turbines.
The crane features preparations for the next generation of tagline systems, with improved capabilities to install next generations of wind turbines in more challenging conditions. Furthermore, it has been optimised for installation of bottom fixed foundations in combination with Huisman’s portfolio of Monopile Grippers and Pre-Piling Templates.
The crane features a small tail swing, offering optimal deck space. Huisman’s in-house designed construction in multiple segments ensures ease of inspection and maintenance.
Other features include:
- A fully electrically driven system, resulting in high positioning accuracy, efficient energy use, reduced maintenance and high reliability.
- In-house developed slew bearing system, providing highly reliable and accurate positioning of the crane.
- A unique boom design ensuring a lightweight and stiff design, limiting motions at the crane tip.
- Small tail swing allowing for optimised utilisation of free deck space.