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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 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.
The main hoist could lift 92 m (302 ft) above the work deck. The auxiliary hoists could lower to a depth of 3,000 metres (9,800 ft) below the work deck. A tandem lift using the main hoists could lift 9,000 short tons (8,200 t) at a 39 m (128 ft) radius.
The ship shaped crane vessel Challenger was equipped to lift 800 t. [2] The need for large stable crane vessels to operate in the North Sea environment lead the company to develop the first large semi-submersible crane vessels. In 1978, HMC commissioned Mitsui to construct the two sister semi-submersible crane vessels, DCV Balder and SSCV ...
A crane has a lift capacity of 5,000 metric tonnes and lowering equipment can reach a depth of 3,500 meters. The vessel is equipped with class 3 dynamic positioning system. The monohull is designed for fast transit speed and optimum motion characteristics in operation. [1] The vessel can accommodate 289 persons.
Allseas Group S.A. is a Dutch offshore contractor specialising in pipelay, heavy lift and subsea construction. [2] It was founded in 1985 by owner and president Edward Heerema, employs 4,000 people and operates worldwide.
The Balder was constructed in 1978 as semi-submersible crane vessel by Mitsui Engineering & Shipbuilding Co., Ltd. Balder and sister vessel, Hermod were the world's first semi-submersible crane vessels. [2] In the early 1980s these vessels set several lift records while operating in the North Sea. [3]
A heavy-lift ship is a vessel designed to move very large loads that cannot be transported by normal ships. They are of two types: Semi-submersible ships that take on water ballast to allow the load—usually another vessel—to be floated over the deck, whereupon the ballast is jettisoned and the ship's deck and cargo raised above the ...