Floating sheerleg

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.

There is a huge variety in sheerleg capacity. The smaller cranes start around 50 ton in lifting capacity, with the largest being able to lift 10,000 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.

Biggest sheerlegs

Name Company Lifting capacity Country
Hyundai-10000 Hyundai Heavy Industries 10,000 t
11,000 short tons[1]
Korea
Asian Hercules III Asian Lift (Smit & Keppel FELS) 5,300 t
5,800 short tons[2][3]
Singapore
HL 5000 Deep Offshore Technology 5,000 t
5,500 short tons[4]
Iran
海翔
Kaisho
Yorigami Maritime Construction Co., Ltd. 4,100 t
4,500 short tons[5]
Japan
Gulliver Scaldis 4,000 t
4,400 short tons[6]
Luxemburg
洋翔
Yousho
Yorigami Maritime Construction Co., Ltd. 4,000 t
4,400 short tons[5]
Japan
第50吉田号
Yoshida No.50
Yoshida-Gumi Co., Ltd. 3,700 t
4,100 short tons[7]
Japan
武蔵
Musashi
Fukada Salvage 3,700 t
4,100 short tons[8]
Japan
L-3601 Sembcorp Marine 3,600 t
4,000 short tons[9]
Singapore
Rambiz Scaldis 3,300 t
3,600 short tons[10]
Belgium
Asian Hercules II Asian Lift (Smit & Keppel FELS) 3,200 t
3,500 short tons[2][3]
Singapore
富士
Fuji
Fukada Salvage 3,000 t
3,300 short tons[8]
Japan
SADAF 3000 Darya Fan Qeshm Industries (SADAF) 3,000 t
3,300 short tons[11]
Iran
第28吉田号
Yoshida No.28
Yoshida-Gumi Co., Ltd. 3,000 t
3,300 short tons[12]
Japan
Taklift 4 Boskalis Marine Contractors 2,200 t
2,400 short tons[lower-alpha 1][3]
Netherlands
駿河
Suruga
Fukada Salvage 2,200 t
2,400 short tons[8]
Japan
金剛
Kongo
Fukada Salvage 2,050 t
2,260 short tons[8]
Japan
Matador 3 Bonn & Mees 1,800 t
2,000 short tons[14]
Netherlands
Left Coast Lifter Tappan Zee Constructors 1,699 t
1,873 short tons[15]
United States
Asian Hercules Asian Lift (Smit & Keppel FELS) 1,600 t
1,800 short tons[2][3]
Singapore
PW L-1501 Pacific Workboats Pte Ltd 1,500 t
1,700 short tons[16]
Singapore
Lifter 1 Saipem 1400 ton Malta
新建隆
Shin-kenryu
Yorigami Maritime Construction Co., Ltd. 1,400 t
1,500 short tons[5]
Japan
新柏鵬
Shin-hakuho
Yorigami Maritime Construction Co 1,300 t
1,400 short tons[17]
Japan
Taklift 6[lower-alpha 2] Asian Lift (Smit & Keppel FELS) 1,200 t
1,300 short tons[3]
Singapore
Taklift 7 Smit Internationale 1,200 t
1,300 short tons[3]
Netherlands
Italia Fli. Neri 1000 ton Italy
Smit Cyclone Asian Lift (Smit & Keppel FELS) 1000 ton Bahamas
Brabo Havenbedrijf Antwerpen 800 ton Belgium
Taklift 1 Smit Internationale 800 ton Netherlands
PW L-801 Pacific Workboats Pte Ltd 800 t
880 short tons[16]
Singapore
Uglen J. J. Ugland 800 t
880 short tons[18]
Norway
伊豆
Izu
Fukada Salvage 700 t
770 short tons[8]
Japan
大和
Yamato
Fukada Salvage 700 t
770 short tons[8]
Japan
宏栄号
Koei-go
Fukada Salvage 600 t
660 short tons[8]
Japan
Enak Bugsier Reederei und Bergungs GmbH & Co KG 600 ton Germany
RMG 500 Resolve Salvage & Fire 500 t
550 short tons[19]
Singapore
Norma Scaldis 440 t
490 short tons[20]
Belgium
Asian Helping Hand III Asian Lift (Smit & Keppel FELS) 400 t
440 short tons[2]
Singapore
Consul Tenwolde Transport en Repair 400 t
440 short tons[21]
Netherlands
GPS Apollo GPS Marine 400 t
440 short tons[22]
UK / Netherlands
GPS Atlas GPS Marine 400 t
440 short tons[22]
UK / Netherlands
Matador Bonn & Mees 400 t
440 short tons[14]
Netherlands
Matador 2 Bonn & Mees 400 t
440 short tons[14]
Netherlands
Smit Typhoon Asian Lift (Smit & Keppel FELS) 400 t
440 short tons[23]
Bahamas
SBG Himmat Arihant Ship Breakers 400 ton India
Maja Polskie Ratownictwo Okretowe 330 ton Poland
HEBO-Lift 7 HEBO Maritiemservice B.V. 300 ton Netherlands
Floating Crane No. 303 Fukada Salvage 300 t
330 short tons[24]
Japan
Triton[25] Wagenborg Towage 300 ton Netherlands / Germany
Notes
  1. 1,600 t (1,800 short tons) as delivered in 1981. Capacity upgraded in 2010.[13]:72
  2. Sold to Turkey for scrap in 2017

References

  1. "Hyundai-10000, The world's Biggest Shear-leg Floating Crane In Operation". marine insight. January 23, 2017. Retrieved 20 September 2019.
  2. "Asian Hercules III 'largest heavy-lift sheerlegs of its kind' named in Singapore". Offshore Energy Today. May 15, 2015. Retrieved 20 September 2019.
  3. "Heavy Lift Vessels". Boskalis. Retrieved 20 September 2019.
  4. "Vessels > HL 5000". Deep Offshore Technology. Archived from the original on August 16, 2016.
  5. "Fleet of Work Vessels". Yorigami Maritime Construction Co., Ltd. Retrieved 23 September 2019.
  6. "Gulliver technical specification" (PDF). Scaldis SMC. Retrieved 20 September 2019.
  7. "Yoshida-go 50". Yoshida Gumi. Retrieved 23 September 2019.
  8. "Register of Ships: Crane Barges". Fukada Salvage & Marine Works Co., Ltd. Retrieved 20 September 2019.
  9. "Lifting to Greater Heights" (PDF). Dolphin. Sembcorp Marine. May–June 2012. Retrieved 14 October 2019.CS1 maint: date format (link)
  10. "Rambiz technical specification" (PDF). Scaldis SMC. Retrieved 20 September 2019.
  11. "SADAF 3000". Darya Fan Qeshm Industries Company (SADAF) Co. Retrieved 20 September 2019.
  12. "Yoshida-go 28". Yoshida Gumi. Retrieved 23 September 2019.
  13. "This is Huisman: Huisman Product Presentation Book 2016" (PDF). Huisman. Retrieved 23 September 2019.
  14. "The Fleet". Bonn & Mees. Retrieved 20 September 2019.
  15. "Bay Bridge Construction Enters Momentous Stage As Giant Crane Barge Makes Historic Entry" (PDF) (Press release). San Francisco. 12 March 2009. Retrieved 10 February 2015.
  16. "Ocean-going Floating Sheerleg" (PDF). Pacific Workboats Pte Ltd. Retrieved 23 September 2019.
  17. "Fleet of Work Vessels". Yorigami Maritime Construction Co., Ltd. Archived from the original on 29 May 2012.CS1 maint: unfit url (link)
  18. "HLV Uglen" (PDF). The J. J. Ugland Companies. April 2015. Retrieved 23 September 2019.
  19. "RMG 500" (PDF). Resolve Marine Group Inc. December 2016. Retrieved 23 September 2019.
  20. "Norma Capacity Diagram" (PDF). Scaldis-SMC. 6 December 2002. Archived from the original (PDF) on 24 May 2010.
  21. "Floating Sheerlegs, TTR Code no.: 50.012" (PDF). Tenwolde. Archived from the original (PDF) on 25 April 2016.
  22. "Fleet: Sheerlegs (Drijvende Bokken)". GPS Marine. Archived from the original on 15 July 2013.CS1 maint: unfit url (link)
  23. "Smit and Keppel strengthen sheerlegs joint venture". Cranes Today. 4 May 1999. Retrieved 20 September 2019.
  24. "Floating Cranes". Fukada Salvage & Marine Works Co., Ltd. Archived from the original on 16 February 2012.
  25. http://www.wagenborg.com/uploads/bestanden/c91995a7-4a22-4b6c-b005-418219aa9690.pdf
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