Floating_sheerleg

Floating sheerleg

Floating sheerleg

Floating water vessel with a crane built on shear legs


A floating sheerleg (also: shearleg) is a floating water vessel with a crane built on shear legs. Unlike other types of crane vessel, it is not capable of rotating its crane independently of its hull.

1600 ton maximum lift capacity sheerleg Taklift 7 of Smit Internationale

There is a huge variety in sheerleg capacity. The smaller cranes start at around 50 tons[which?] in lifting capacity, with the largest being able to lift 20,000 tons. The bigger sheerlegs usually have their own propulsion system and have a large accommodation facility on board, while smaller units are floating pontoons that need to be towed to their workplace by tugboats.

Sheerlegs are commonly used for salvaging ships, assistance in shipbuilding, loading and unloading large cargo into ships, and bridge building. They have grown considerably larger over the last decades due to a marked increase in vessel, cargo, and component size (of ships, offshore oil rigs, and other large fabrications), resulting in heavier lifts both during construction and in salvage operations.

List of floating sheerlegs by lifting capacity

More information Name, Image ...
Notes
  1. 1,600 t (1,800 short tons) as delivered in 1981. Capacity upgraded in 2010.[16]:72
  2. Sold to Turkey for scrap in 2017
  3. ex-Samson
  4. Acquired from Bugsier Reederei und Bergungs GmbH & Co KG [de]

References

  1. "Pioneering Spirit Gets 20,000-Tonne Floating Sheerlegs System". The Maritime Executive. Retrieved 2022-02-20.
  2. "Hyundai-10000, The world's Biggest Shear-leg Floating Crane In Operation". marine insight. January 23, 2017. Archived from the original on 28 May 2023. Retrieved 20 September 2019.
  3. "Asian Hercules III 'largest heavy-lift sheerlegs of its kind' named in Singapore". Offshore Energy Today. May 15, 2015. Retrieved 20 September 2019.
  4. "Heavy Lift Vessels". Boskalis. Retrieved 20 September 2019.
  5. "Asian Hercules III" (PDF). Asian Lift. April 2015. Retrieved 31 December 2019.
  6. "Vessels > HL 5000". Deep Offshore Technology. Archived from the original on August 16, 2016.
  7. "Fleet of Work Vessels". Yorigami Maritime Construction Co., Ltd. Retrieved 23 September 2019.
  8. "Gulliver technical specification" (PDF). Scaldis SMC. Retrieved 20 September 2019.
  9. "Yoshida-go 50". Yoshida Gumi. Retrieved 23 September 2019.
  10. "Register of Ships: Crane Barges". Fukada Salvage & Marine Works Co., Ltd. Archived from the original on 12 August 2022. Retrieved 20 September 2019.
  11. "Lifting to Greater Heights" (PDF). Dolphin. Sembcorp Marine. May 2012. Retrieved 14 October 2019.
  12. "Rambiz technical specification" (PDF). Scaldis SMC. Retrieved 20 September 2019.
  13. "Asian Hercules II" (PDF). Asian Lift. February 2002. Retrieved 31 December 2019.
  14. "SADAF 3000". Darya Fan Qeshm Industries Company (SADAF) Co. Retrieved 20 September 2019.
  15. "Yoshida-go 28". Yoshida Gumi. Archived from the original on 23 September 2020. Retrieved 23 September 2019.
  16. "This is Huisman: Huisman Product Presentation Book 2016" (PDF). Huisman. Retrieved 23 September 2019.
  17. "The Fleet". Bonn & Mees. Retrieved 20 September 2019.
  18. "Bay Bridge Construction Enters Momentous Stage As Giant Crane Barge Makes Historic Entry" (PDF) (Press release). San Francisco. 12 March 2009. Archived from the original (PDF) on 29 May 2014. Retrieved 10 February 2015.
  19. "Asian Hercules" (PDF). Asian Lift. February 2002. Retrieved 31 December 2019.
  20. "Ocean-going Floating Sheerleg" (PDF). Pacific Workboats Pte Ltd. Retrieved 23 September 2019.[permanent dead link]
  21. "Fleet of Work Vessels". Yorigami Maritime Construction Co., Ltd. Archived from the original on 29 May 2012.{{cite web}}: CS1 maint: unfit URL (link)
  22. "Sheerlegs Italia: 1000 tons lifting capacity" (PDF). Neri Maritime Group. Retrieved 31 December 2019.
  23. "Floating sheerlegs". Boskalis. Archived from the original on April 24, 2015.
  24. "Chesapeake 1000". Donjon Marine. Retrieved 10 April 2024.
  25. "HEBO Lift 9" (PDF). Hebo Maritiem Service. Archived from the original (PDF) on 31 December 2019. Retrieved 31 December 2019.
  26. "Brabo" (PDF). Port of Antwerp. Retrieved 31 December 2019.
  27. "HLV Uglen" (PDF). The J. J. Ugland Companies. April 2015. Archived from the original (PDF) on 15 June 2016. Retrieved 23 September 2019.
  28. "Port of Hamburg welcomes 600 tons crane". Safety 4 Sea. 15 May 2018. Retrieved 31 December 2019.
  29. "Schwimmkran Enak". Lührs Schifffahrt. Retrieved 31 December 2019.
  30. "RMG 500" (PDF). Resolve Marine Group Inc. December 2016. Retrieved 23 September 2019.
  31. "Equipments". Arihant Ship Breakers. Archived from the original on 26 July 2014. Retrieved 31 December 2019.
  32. "Norma Capacity Diagram" (PDF). Scaldis-SMC. 6 December 2002. Archived from the original (PDF) on 24 May 2010.
  33. "Asian Helping Hand III" (PDF). Asian Lift. February 2002. Retrieved 31 December 2019.
  34. "Floating Sheerlegs, TTR Code no.: 50.012" (PDF). Tenwolde. Archived from the original (PDF) on 25 April 2016.
  35. "Fleet: Sheerlegs (Drijvende Bokken)". GPS Marine. Archived from the original on 15 July 2013.{{cite web}}: CS1 maint: unfit URL (link)
  36. "Smit and Keppel strengthen sheerlegs joint venture". Cranes Today. 4 May 1999. Retrieved 20 September 2019.
  37. "Sheerlegs". HEBO Maritiem Service, B.V. Retrieved 31 December 2019.
  38. "Floating Cranes". Fukada Salvage & Marine Works Co., Ltd. Archived from the original on 16 February 2012.
  39. "300 T Sheerleg" (PDF). Royal Wagenborg. Retrieved 31 December 2019.

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