Page 13: of Marine Technology Magazine (June 2011)

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Huisman Transports,

Installs 5,000mt Crane

In March, Huisman, a Dutch-based specialist in lifting, drilling and subsea solutions, installed what it calls the world’s largest Offshore Mast Crane onboard the Seven Borealis. This crane installation is considered as the heaviest and logistically most complex conducted by Huisman to date. After final load testing, Seven Borealis will depart for the Huisman production facility in Schiedam where a complete 600mt S-lay system will be finalized.

Transport and installation of the crane were performed under the responsibility of Huisman. The trans- port from the Huisman production facility in Zhangzhou, China to

Sembawang Shipyard in Singapore was executed by BigLift’s Happy

Buccaneer, a heavy lift cargo vessel with first generation Huisman Mast

Cranes (1984). At Sembawang

Shipyard the crane was installed onboard the Seven Borealis in four days, a lift of approximately 1000t each day. The four crane pieces were installed in the following sequence: mast base, slewing section, boom and mast.