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The vessel is equipped with two revolving cranes built by Huisman Equipment B.V., each with a capacity of 10,000 t (11,000 short tons); the main cranes can be operated in tandem to jointly lift 20,000 t (22,000 short tons). After its completion in 2019, SSCV Sleipnir succeeded Heerema's earlier SSCV Thialf as the largest crane vessel in the world.
A crane vessel, crane ship, crane barge, or floating crane is a ship with a crane specialized in lifting heavy loads, typically exceeding 1,500 t (1,476 long tons; 1,653 short tons) for modern ships. The largest crane vessels are used for offshore construction .
Soon after completion, Asian Hercules II was loaned to Smit International and served the European lifting market from 1999. [2] [3] Asian Hercules II set the completed Gateshead Millennium Bridge in place on 20 November 2000. [4] Asian Hercules II and Rambiz lifted sections of the sunken Tricolor from the English Channel after it sank in 2002.
Aside from the ballast lifting system, Pioneering Spirit is equipped with large conventional cranes, including a sheerleg and rotating cranes. Two tilting lift beams for the installation or removal of the steel jackets used for fixed platforms, up to 25,000 tonnes (28,000 short tons) in weight, will be located at the vessel's stern. [27]
The 2nd Auxiliary hook can be deployed to a water depth of 450 m. The two cranes are capable of a tandem lift of 14,000 tonnes. Each crane was fitted with 15,600 hp (11,630 kW) engines to power the boom and load hoists, 9 tugger lines and the crane slewing system. The cranes use 48 miles (77 km) of wire rope of various diameters.
In 2000, it set a world record of 11,883 t by lifting Shell's Shearwater topsides, beaten by Saipem 7000 in 2004 with the Sabratha deck lifting of 12,150 t. [5] In 2004, it installed the topsides on BP's Holstein, at the time the world's largest spar. The lift was a record for the Gulf of Mexico: 7,810 t.
The floating barge-crane, originally named Marine Boss, was built for Murphy Pacific Marine.The barge was assembled by Zidell Explorations from scrapped ship steel in Oregon [2] in 1966 and fitted in San Francisco with a heavy 500-ton revolving crane made by Clyde Iron Works [3] to perform the heavy girder and deck-section lifts for construction of the 1967 San Mateo-Hayward Bridge.
Equipped with a large 7,500 tonnes lifting capacity crane, an additional 4,000 tonnes crane and an auxiliary 1,600 tonnes hook, a long stinger [12] and extensive equipment for lifting and lowering exceptionally heavy equipment and oil rigs, Lanjing is the largest crane vessel in the world (as of 2019). [13]