The crane(s) will continue operating at half their rope speed maintaining maximum torque of the winches for completing an ongoing action in a safe manner. [10] These cranes each use approximately 33 km (21 mi) of braided wire rope, 72 mm (2.8 in) thick. The deckhouse is designed for a complement of 400 persons, accommodated in 175 double, 45 single and five executive single cabins.

It was ordered in 2015 and built in Singapore by Sembcorp Marine. [6] The main hoists were tested to 110% of rated load during sea trials in June 2019. Lifting operations are thoroughly prepared by HMC’s engineering team. Heerema's Sleipnir completes first wind project with the installation of the Hollandse Kust Zuid transformer station. As the view from the bridge is partly obstructed by the cranes, a conning station is fitted on the SB crane tub. The LNG system arrangement as such is in compliance with DP3 requirements. The upper tiers are arranged for cabins. Kolga, Heerema's newly upgraded tug, joined Sleipnir at sea to guide the vessel into the Caland Canal.

[7] Prior to the cranes for Sleipnir, the largest bearings Huisman had used for tub-mounted cranes were only 12 m (39 ft) in diameter. The bulkheads integrate the heavy main deck and the double bottom. After its completion in 2019, SSCV Sleipnir succeeded Heerema's earlier SSCV Thialf as the largest crane vessel in the world. The longitudinal and transverse bulkheads of the deckbox follow the pattern of the column shells and bulkheads.

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HMC manages the entire supply chain of offshore construction, from design through to completion. Notes: kV kilovolt; kW kilowatt; kVA kilovolt-ampere; HV high voltage of 11 kV; * efficiency 97 per cent; ** cos phi 0.85; *** thruster rating of all mechanical and structural parts 6500 kW. A symmetrical twin-pontoon semi-submersible with four columns proved superior operability. The main deck plating is stiffened by transverse webs and longitudinal framing.

HMC’s experience with underwater maintenance, endorsed by Lloyd’s Register, has proved regular docking unnecessary. Two blocks of free fall life boats are located at starboard and aft side of the deckhouse. They will achieve this sustainability goal by preventing, reducing, and compensating their carbon emissions. In this respect, the Sleipnir’s design is a breakthrough. Koos-Jan van Brouwershaven, Heerema's CEO, said of Sleipnir's arrival: 'I and Kolga's crew proudly guided Sleipnir on its first arrival into the Port of Rotterdam. [6] The dining hall can hold 200 people. With its large cranes capable of a 135-metre lifting height and a combined 20,000-tonne lifting capacity, Sleipnir is very well placed to accommodate this trend of increasingly bigger offshore wind turbines. With its new crane vessel Sleipnir, Heerema Marine Contractors is gearing up for growth in demand for heavy lifting services. The architecture of the power generation and power distribution system is based on a quadrant approach.

A helicopter deck is mounted on the aft side of the deckhouse, along with check-in/out rooms. Considering the travelling distances between projects, the vessel had to be self-propelled, with a 10 knots cruising speed. Heatmaster built two hot water boilers for Sleipnir. These are 3 degrees and 1 degree respectively in maximum load condition, including dynamics. They contain three boats each, along with mustering facilities. Named after the Norse eight-legged legend: SLEIPNIR, this vessel is the strongest and biggest of all crane-vessels in the world. The living quarters are equipped to accommodate 400 men in single and double cabins. The systems on the Sleipnir are based on the electro-catalysis principle. Therefore, the Sleipnir has comparable column waterline areas at operating draft. The ballast system is separated per pontoon. The ship’s lifting capacities far exceed those of Heerema’s Thialf, the previous record holder. The deckbox is a watertight box structure. The Sleipnir’s high voltage system. Kolga, Heerema's newly upgraded tug, joined Sleipnir at sea to guide the vessel into the Caland Canal. Heerema intends to use primarily LNG fuel, except where terminals lack the infrastructure to provide LNG bunkers. The HV switchboards are typically interconnected in sailing mode, feeding the four stern thrusters. The vessel has dual-fuel engines that enable Sleipnir to run on LNG, drastically reducing harmful emissions. Heerema's Sleipnir, the world's most powerful semi-submersible crane vessel yesterday, received the largest LNG bunkering ever completed.

HMC transports, installs and removes all types of offshore facilities. The cranes, built at Huisman China, were installed in Singapore in 2018. Sleipnir can accommodate 400 persons and will be deployed globally for installing and removing jackets, topsides, deep-water foundations, moorings and other offshore structures. In practice, however, small deviations from the given centres of gravity may occur, particularly in the case of platform removals. Heerema’s SSCV Sleipnir installed the jacket for the new Peregrino C platform. Interconnecting LNG and gas lines are all double walled and made of stainless steel. English (EN) MarineTraffic Blog Help Centre The vessel further stands out as the world’s first crane vessel with dual-fuel engines running on Marine Gas Oil (MGO) and Liquefied Natural Gas (LNG). Recreation, entertainment and various technical rooms are further down on the double bottom. The rating of the high voltage system is shown in the table on the previous page. Main dimensions of the Sleipnir. The mess rooms, galley and food stores are located below the deckhouse on the tweendeck. Notes: * freeboard to top of floater; ** scantling draft displacement in seawater 1025 kg/m3. A large six story deckhouse is located at the starboard (SB) aft corner on maindeck. Twelve main engine-generator combinations are arranged in four engine rooms. Singapore Hub and Supporting Yards (Indonesia), Leveraging a Resource Recovery Opportunity. It’s cold, the ocean may be angry, calm or something in between. The Netherlands, Heerema’s Sleipnir, the World’s Biggest Semi-Submersible Crane Vessel. Nevertheless, it takes a scavenger hunt to find them on the SLEIPNIR. Coupled with an IMO- and US Coast Guard-approved ballast water management system, Sleipnir operates sustainably across all environmental jurisdictions. They are interconnected by pipe/access tunnels that also reach the thruster rooms. Its strength is designed for AW101 helicopters (dynamic load of 15.6 tonnes).

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