Huisman has signed a Letter of Intent (LOI) with Yantai CIMC Raffles Offshore for the delivery of a 2,600mt Leg Encircling Crane (LEC) for OIM Wind’s BT-220IU Wind Installation Unit. The LOI includes the option for the delivery of a LEC for a second installation unit.
In order to be deployed for offshore wind installation, the crane setup of the BT-220IU unit has been optimised. With its 140m long boom and 2,600mt lifting capacity, the new Leg Encircling Crane enables OIM Wind to install the next and future generation’s wind turbine generators. In highest position, the crane’s main hoist is capable of lifting the maximum load of 2,600mt with a hook height of approximately 165m above main deck level.
For this project, Huisman will implement the same technology on drive systems and slewing bearings as used for the LECs that the company has been delivering to the offshore wind market over the past years, e.g. to installation vessels Seajacks’ Scylla and Van Oord’s Aeolus. Huisman LECs are characterised by their lightweight, yet robust crane designs. A fully electrically driven system enables high positioning accuracy, efficient energy use, reduced maintenance and high reliability, the company states.
The BT-220IU Wind Installation Unit has been designed by CIMC’s engineering office in Yantai, P.R. of China, and its subsidiary Bass Tech AB, Sweden, based on technical input and market knowledge from OIM Wind Ltd. The crane for the first unit will be built at the Huisman production facility in Xiamen, P.R. of China. Huisman will deploy its Skyhook Crane for the installation of the LEC along its quayside, scheduled for late 2022.