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  2. SSCV Sleipnir - Wikipedia

    en.wikipedia.org/wiki/SSCV_Sleipnir

    Objects can be lifted and lowered using the main hoist from 20 m (66 ft) below the waterline to 135 m (443 ft) above it when SSCV Sleipnir is operating at its maximum 32 m (105 ft) draft. [7] The main hoists were tested to 110% of rated load using the modified barge H-408 during sea trials in June 2019.

  3. Hermod (ship) - Wikipedia

    en.wikipedia.org/wiki/Hermod_(ship)

    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.

  4. Saipem 7000 - Wikipedia

    en.wikipedia.org/wiki/Saipem_7000

    In February 2024, while due to undergo repair work, Saipem 7000 had a fatal allision with a small vessel in the Port of Rotterdam. [3] The Incident Report from the Dutch Safety Board stated that Rotterdam's pilots and the ship repair yard to carry out better planning before navigational evolutions in confined harbours. [4] [5]

  5. SSCV Thialf - Wikipedia

    en.wikipedia.org/wiki/SSCV_Thialf

    SSCV Thialf is a huge semi-submersible crane vessel operated by the Netherlands-based Heerema Marine Contractors; it was the largest crane vessel in the world until the SSCV Sleipnir became the largest in 2019.

  6. Semi-submersible platform - Wikipedia

    en.wikipedia.org/wiki/Semi-submersible_platform

    These semi-submersible crane vessels (SSCV) consist of two lower hulls (pontoons), three columns on each pontoon and an upper hull. Shortly after J. Ray McDermott and Saipem also introduced SSCVs, resulting in two new enormous vessels DB-102 (now Thialf) and Saipem 7000, capable of lifting respectively 14,200 and 14,000 tons.

  7. Hoist (mining) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(mining)

    A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...

  8. Hydraulic motor - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_motor

    Hydraulic motors are used for many applications now such as winches and crane drives, wheel motors for military vehicles, self-driven cranes, excavators, conveyor and feeder drives, cooling fan drives, mixer and agitator drives, roll mills, drum drives for digesters, trommels and kilns, shredders, drilling rigs, trench cutters, high-powered ...

  9. Heerema Marine Contractors - Wikipedia

    en.wikipedia.org/wiki/Heerema_Marine_Contractors

    In 1978, HMC commissioned Mitsui to construct the two sister semi-submersible crane vessels, DCV Balder and SSCV Hermod. These vessels could lift 5,400 tonnes with the twin cranes, and were later upgraded to 8,200 tonnes. [2] In 1988 HMC formed a joint venture with McDermott called HeereMac. [3] "Thialf" in a Norway fjord