The tallest maritime crane used in offshore construction is found on the semi-submersible crane vessel called SSCV Selipnir, owned and operated by Heerema Marine Contractors. Image Credits: Wikipedia The vessel was constructed by Sembcorp Marine in Singapore and entered service in 2019. The vessel is 220 m long and 102 m wide, with a displacement of 273,700 tonnes and a draft between 12 and 32 m. It can accommodate 400 crew members and was designed for the installation and removal of jackets, topsides, deepwater foundations, modules, moorings, and other offshore structures. It minimises offshore assembly processes by allowing for single-lift installation of massive integrated structures. It has 8 Wartsila azimuth thrusters and 12 dual-fuel engines, which can run on either marine gas oil or LNG, making it the first dual-fuel crane vessel in the world. The vessel has two main cranes that reach as high as 220 m or 722 feet, making them the tallest offshore cranes, surpassing the height of several iconic buildings. Each crane has a maximum lifting capacity of 10,000 metric tons, and together they can perform tandem lifts of up to 20,000 metric tons. The cranes are fully revolving and can enable flexible and precise heavy lifting operations. The main hoist can lift loads from 20 m below the waterline up to 135 m above it, with auxiliary hoists capable of even greater vertical reach of up to 165m above deck. SSCV Sleipnir set a world record in September 2019, when it lifted a single module weighing 15,300 metric tonnes for the topsides of Noble Energy’s Leviathan Project in the Mediterranean Sea. This was the heaviest lift ever performed by a crane vessel and was part of the installation of two main topsides, one weighing 15,300 tonnes and the other 9200 tonnes, which were installed in less than 20 hours, showing Sleipnir’s unmatched capabilities for efficient and swift offshore construction. Apart from this major milestone, the vessel undertook many other key projects, such as the Tyra Redevelopment Project in the Danish Sea, where it installed and removed jackets and topsides. In the Shell Brent Alpha Project in the North Sea, it removed the 10,100-tonne Brent Alpha jacket and made a new record for single-lift jacket removal. The use of Sleipnir enabled the installation of massive, pre-commissioned modules, decreasing offshore time and project costs. You might also like to read- Biggest Crane Ship In the World Mobile Harbour Cranes Explained What Are Telescopic Cranes? Disclaimer : The information on this website is for general purposes only. While efforts are made to ensure accuracy, we make no warranties of any kind regarding completeness, reliability, or suitability. Any reliance you place on such information is at your own risk. We are not liable for any loss or damage arising from the use of this website. Related Posts Marine Transportation Of Plastic Pellets Or Nurdles Underwater Ship Hull Cleaning: Techniques, ROVs, & Cavitation Technology 20 Types of Shipping Containers: Designs, Dimensions and Uses Explained Top 20 Largest Cruise Ships In The World Related Posts Marine Transportation Of Plastic Pellets Or Nurdles Underwater Ship Hull Cleaning: Techniques, ROVs, & Cavitation Technology 20 Types of Shipping Containers: Designs, Dimensions and Uses Explained About Author Zahra is an SEO-Strategist & a Technical Writer with over 5 years of experience crafting top-tier content for the shipping world. From news, articles, ebooks, blogs a