Liebherr together with the Norwegian companies OHT, Ulstein Design & Solution BV, DNV-GL as well as Chinese shipyard CMHI are working to manufacture a unique vessel for applications in the wind energy sector, decommissioning, the installation of offshore platforms and for heavy-duty transports. CMHI, a well known manufacturer of offshore equipment and large vessels, is going to build the 216.3 meter long ship at its dockyard in Haimen on behalf of the heavy transport vessel operator, OHT. Ship designing company Ulstein created the patented Alfa Lift concept in close cooperation with OHT.
OHT’s new semi-submersible vessel also provides an ultramodern installation concept which will influence and change the offshore market. Liebherr supports this with a HLC – the company’s latest crane series in the heavy lift sector. The HLC 150000 is able to lift up to 3,000 tonnes. Based on the company’s well proven crane design with slewing bearing, A-frame and lattice boom, the crane provides the highest reliability and flexibility. Its robust design withstands dynamic conditions and motions.
The 48,000 dwt installation vessel is able to submerge when in operation which increases the stability of the crane. As a result the HLC resists a wider variety of environmental scenarios and thus makes it possible to operate in almost any weather.
With the combination of a large safe working load and a lattice boom more than 70 metres long, the crane will be ideal for the transport and installation of windfarm foundations on high seas. This is supplemented by the space saving positioning on top of the ship’s bridge.