In October, two main components of the new 3,000 ton capacity wind farm erection crane were installed in Liebherr 's factory in Rostock, northern Germany. The mechanical link was made to create the lower slewing unit of the HLC between the lower slewing column and the machinery frame.

Norwegian specialist contractor OHT is Liebherr 's client for this crane.

On Alfa Lift, the world's largest and most imaginative, custom-built offshore wind foundation installation vessel, Liebherr said, the double lattice boom HLC will be installed. The Alfa Lift, designed by Ulstein, is being constructed in China and is due to be delivered in 2021.

At an outreach of 76 meters, HLC 150000-3000 raises the 3,000 tonnes to a radius of 30 meters or 1,000 tonnes.

OHT worked closely with Liebherr on the HLC 150000-3000 production. Liebherr Rostock Sales Director for Ship and Offshore Cranes, Daniel Poll, explained, "Liebherr and OHT both have great faith in this near partnership, which is the basis for the HLC 150000-3000 multifunctionality." An advantage that, in this competitive international market, can be significant.

Working in an open and collaborative manner with Liebherr has become an essential element in the development process of Alfa Lift and her onboard equipment. Making sure the operational criteria and limitations of the crane are viewed with a holistic approach, taking into account the vessel’s motion characteristics and capabilities of other mission equipment onboard, is key. Working alongside key suppliers who understand these requirements makes a huge difference in ensuring ultimate success,” stated Torgeir Ramstad, OHT chief executive officer.

The electric and hydraulic attachment of the two modules, followed by the connection of the upper and lower slewing units, would be the next milestone in the construction of the crane.

HLC cranes are designed to assist with the construction and decommissioning of offshore platforms, in addition to the installation of offshore wind foundations and sub-stations.

Maritime Business World