Floating sheerleg

Last updated
1600 ton maximum lift capacity sheerleg Taklift 7 of Smit Internationale 2005-10-29, Stralsund, Hafen, Schwimmkran Taklift 7 am Hansakai.jpg
1600 ton maximum lift capacity sheerleg Taklift 7 of Smit Internationale

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 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

NameImageCompanyLifting capacityCountry
Pioneering Spirit Pioneering Spirit (ship, 2014) 005.jpg Allseas 20,000 t
22,000 short tons [1]
Switzerland
Hyundai-10000 Hyundai Heavy Industries 10,000 t
11,000 short tons [2]
Korea
Asian Hercules IIIAsian Lift (Smit & Keppel FELS)5,300 t
5,800 short tons [3] [4] [5]
Singapore
HL 5000Deep Offshore Technology5,000 t
5,500 short tons [6]
Iran
海翔
Kaisho
Yorigami Maritime Construction Co., Ltd.4,100 t
4,500 short tons [7]
Japan
Gulliver GULLIVER (48085611142).jpg Scaldis4,000 t
4,400 short tons [8]
Luxemburg
洋翔
Yousho
Yorigami Maritime Construction Co., Ltd.4,000 t
4,400 short tons [7]
Japan
第50吉田号
Yoshida No.50
Yoshida-Gumi Co., Ltd.3,700 t
4,100 short tons [9]
Japan
武蔵
Musashi
Tokyo-ko Rinkai Bridge construction 1005162.jpg Fukada Salvage3,700 t
4,100 short tons [10]
Japan
L-3601 Sembcorp L-3601.jpg Sembcorp Marine3,600 t
4,000 short tons [11]
Singapore
Rambiz RAMBIZ (28608549675).jpg Scaldis3,300 t
3,600 short tons [12]
Belgium
Asian Hercules IIAsian Lift (Smit & Keppel FELS)3,200 t
3,500 short tons [3] [4] [13]
Singapore
富士
Fuji
Fukada Salvage3,000 t
3,300 short tons [10]
Japan
SADAF 3000Darya Fan Qeshm Industries (SADAF)3,000 t
3,300 short tons [14]
Iran
第28吉田号
Yoshida No.28
Yoshida-Gumi Co., Ltd.3,000 t
3,300 short tons [15]
Japan
NameImageCompanyLifting capacityCountry
HEBO-Lift 10

(former Taklift 4)

HEBO Martitiemservice B.V.2,200 t
2,400 short tons [lower-alpha 1] [4]
Netherlands
駿河
Suruga
Fukada Salvage2,200 t
2,400 short tons [10]
Japan
金剛
Kongo
Fukada Salvage2,050 t
2,260 short tons [10]
Japan
Matador 3 Bonn-mees (48075110457) (Matador 3).jpg Bonn & Mees1,800 t
2,000 short tons [17]
Netherlands
Left Coast Lifter W2 Section Lift (D 007).jpg Tappan Zee Constructors1,699 t
1,873 short tons [18]
United States
Asian Hercules Asian hercules on duty MMHE.jpg Asian Lift (Smit & Keppel FELS)1,600 t
1,800 short tons [3] [4] [19]
Singapore
PW L-1501Pacific Workboats Pte Ltd1,500 t
1,700 short tons [20]
Singapore
Lifter 1 Saipem 1400 tonMalta
新建隆
Shin-kenryu
Yorigami Maritime Construction Co., Ltd.1,400 t
1,500 short tons [7]
Japan
新柏鵬
Shin-hakuho
Yorigami Maritime Construction Co1,300 t
1,400 short tons [21]
Japan
Taklift 6 [lower-alpha 2] Asian Lift (Smit & Keppel FELS)1,200 t
1,300 short tons [4]
Singapore
Taklift 7 Smit Internationale1,200 t
1,300 short tons [4]
Netherlands
ItaliaFratelli Neri1,000 t
1,100 short tons [22]
Italy
Smit CycloneAsian Lift (Smit & Keppel FELS)1,000 t
1,100 short tons [23]
Bahamas
NameImageCompanyLifting capacityCountry
Chesapeake 1000 Donjon Marine910 t
1,000 short tons [24]
United States
HEBO Lift 9 [lower-alpha 3] Floating crane Samson.jpg 900 t
990 short tons [25]
Denmark
Brabo Antwerp Port Authority 800 t
880 short tons [26]
Belgium
Zahariy LR-800Kuznia na rubalskomu ship building800-850t

900 short tons

Ukraine
Taklift 1Smit Internationale800 t
880 short tons [23]
Netherlands
PW L-801Pacific Workboats Pte Ltd800 t
880 short tons [20]
Singapore
Uglen J. J. Ugland 800 t
880 short tons [27]
Norway
伊豆
Izu
Fukada Salvage700 t
770 short tons [10]
Japan
大和
Yamato
Fukada Salvage700 t
770 short tons [10]
Japan
宏栄号
Koei-go
Fukada Salvage600 t
660 short tons [10]
Japan
Enak Bugsier-enak hg.jpg Port of Hamburg [lower-alpha 4] 600 t
660 short tons [28] [29]
Germany
CormorantMultraship Towage and Salvage B.V.600 t [30] Netherlands
NameImageCompanyLifting capacityCountry
RMG 500Resolve Salvage & Fire500 t
550 short tons [31]
Singapore
SBG HimmatArihant Ship Breakers450 t
500 short tons [32]
India
Norma Drijvende Bok Norma R01.jpg Scaldis440 t
490 short tons [33]
Belgium
Asian Helping Hand IIIAsian Lift (Smit & Keppel FELS)400 t
440 short tons [3] [34]
Singapore
ConsulTenwolde Transport en Repair400 t
440 short tons [35]
Netherlands
Tronds Lift 7Tronds Marine400 t
440 short tons [36]
Norway
Tronds Lift 8 GPS Atlas and GPS Nadia.jpg Tronds Marine400 t
440 short tons [36]
Norway
Matador Matador floating crane IMO 8639364 at the Nieuwe Maas river.JPG Bonn & Mees400 t
440 short tons [17]
Netherlands
Matador 2Bonn & Mees400 t
440 short tons [17]
Netherlands
Smit TyphoonAsian Lift (Smit & Keppel FELS)400 t
440 short tons [37]
Bahamas
HEBO-Lift 7 Niehl I Havarie Pure-Liner 2-1210509.jpg HEBO Maritiemservice B.V.300 t
330 short tons [38]
Netherlands
Floating Crane No. 303Fukada Salvage300 t
330 short tons [39]
Japan
TritonWagenborg Towage300 t
330 short tons [40]
Netherlands / Germany
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 ]

Related Research Articles

<span class="mw-page-title-main">Smit International</span>

Smit Internationale N.V. is a Dutch company operating in the maritime sector. The company was founded in 1842 by Fop Smit as a towage company with only the 140 horsepower paddle steamer tug Kinderdijk. Fop's sons, Jan and Leendert, continued the company under the name L. Smit & Co and expanded the fleet. In 1870, they began using tugs with propellers. After a merger in 1923 with Internationale Sleepdienst, the name was changed to "L. Smit & Co.'s Internationale Sleepdienst". Formerly listed at the NYSE Euronext stock exchange in Amsterdam, the company was fully acquired by Royal Boskalis Westminster in 2010.

DCV <i>Balder</i> Deepwater construction vessel built in 1978

DCV Balder is a deepwater construction vessel (DCV) operated by Heerema Marine Contractors.

USNS <i>Salvor</i> Safeguard-class rescue and salvage ship

USNS Salvor (T-ARS-52) is a Safeguard-class rescue and salvage ship, the second United States Navy ship of that name.

<span class="mw-page-title-main">Crane vessel</span> Ship with a crane specialized for lifting heavy loads

A crane vessel, crane ship, crane barge, or floating crane is a ship with a crane specialized in lifting heavy loads, typically exceeding 1,500 t for modern ships. The largest crane vessels are used for offshore construction.

Mighty Servant 3 Semisubmersible heavy-lift ship

Mighty Servant 3 is a 27,000-ton semi-submersible heavy lift ship. Its deck is 40 by 140 m. The vessel was built in 1984 by Oshima Shipbuilding Co. Ltd. in Ōshima, Japan, for Dutch shipping firm Wijsmuller Transport, which merged in 1993 with Dock Express Shipping to become Breda-based offshore heavy lifting group Dockwise Shipping B.V.

<i>Pioneering Spirit</i> Very large platform installation/decommissioning and pipelay vessel

Pioneering Spirit is a catamaran crane vessel owned by the Switzerland-based Allseas Group designed for the single-lift installation and removal of large oil and gas platforms and the installation of record-weight pipelines. The 382-metre-long (1,253 ft), 124-metre-wide (407 ft) vessel is the world's largest vessel by gross tonnage, the heaviest vehicle ever made and since September 2021 also the largest floating sheerleg in the world. It was built in South Korea by Daewoo Shipbuilding & Marine Engineering in 2013 at a cost of €2.6 billion. It commenced offshore operations in August 2016.

<span class="mw-page-title-main">Shear legs</span> Type of two-legged frame for lifting loads

Shear legs, also known as sheers, shears, or sheer legs, are a form of two-legged lifting device. Shear legs may be permanent, formed of a solid A-frame and supports, as commonly seen on land and the floating sheerleg, or temporary, as aboard a vessel lacking a fixed crane or derrick.

<i>Glomar Explorer</i> Deep-sea drillship platform used by the CIA to recover sunken Soviet submarine

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<i>Left Coast Lifter</i> Floating derrick barge

Left Coast Lifter is a floating derrick barge or sheerleg which was built to assist in the eastern span replacement of the San Francisco–Oakland Bay Bridge. The barge carries a shear legs crane which is the largest barge crane ever used on the U.S. West Coast. The barge's name is taken from "Left Coast", a slang phrase that plays on the fact that the U.S. West Coast is on the left of the United States when viewing a map with north oriented at the top.

BOKA Vanguard Semisubmersible heavy-lift ship

BOKA Vanguard is a semisubmersible heavy-lift ship owned and operated by Dockwise B.V. Dockwise Vanguard is the largest vessel of her type ever built, and is able to carry cargoes up to 110,000 tonnes. Dockwise Vanguard was designed to move offshore oil and gas facilities, but can also carry other ships and act as an offshore dry-dock facility.

STV <i>Astrid</i> Tall ship

STV Astrid was a 41.90-metre long tall ship that was built in 1918 in the Netherlands as a lugger and originally named W.U.T.A., short for Wacht Uw Tijd Af meaning "Bide Your Time". She was later transferred to Swedish ownership, renamed Astrid and sailed on the Baltic Sea until 1975. She then sailed under a Lebanese flag and was allegedly used for drug smuggling. After being found burnt out on the coast of England in the early 1980s, she was overhauled and used as a sailing training vessel. She was based in Weymouth, Dorset, United Kingdom and was informally known as "Weymouth's vessel".

Weeks 533

Weeks 533 is a 500-short-ton (454 t) capacity Clyde Iron Works model 52 barge-mounted crane which is the largest revolving floating crane on the East Coast of the United States. It was originally ordered for bridge construction and has since been used in several notable heavy lifts.

Asian Hercules II is a floating sheerleg crane vessel owned and operated by Asian Lift.

<i>Herman the German</i> (crane vessel) Floating crane

Titan, better known by its former nickname Herman the German, is a large floating crane currently serving in the Panama Canal performing heavy lifts for lock maintenance. Prior to its move to Panama in 1996, the crane was based at the Long Beach Naval Shipyard from the end of World War II until the yard's closure in 1995. It was seized from the German Kriegsmarine following the end of World War II as part of war reparations. The crane was built by Demag Cranes AG as Schwimmkran nr. 1 in 1941 for the Kriegsmarine, where it had served in the Baltic Sea tending German U-boats. MMSI number: 374940000

<i>Ajax</i> (crane barge)

Ajax is a floating crane built to move and install the canal locks and other large parts of the Panama canal. Ajax also helped in ship repairs and clearing the canal as needed. Ajax and her identical sister crane, the Hercules, were the largest floating cranes at time of completion, able to install the massive Panama Canal locks. Ajax could lift a maximum of 250 tons to a height of 21 feet (6.40 m), with a close reach. At Ajax's far reach she could lift a maximum of 100 tons. Ajax and Hercules were built by Deutsche Maschinenbau AG (1910-1977) . After the Ajax and Hercules, Deutsche Maschinenbau AG later made the Langer Heinrich, or Long Henry in 1915, in use for 100 years.

<span class="mw-page-title-main">Govan-Partick Bridge</span>

The Govan-Partick Bridge is a new bridge under construction in Glasgow, Scotland, across the River Clyde, close to the Riverside Museum. To allow ships past, its swing bridge main span can rotate to align with the south shore.

<i>Clark Ádám</i> (crane vessel)

Clark Ádám is a crane vessel, specifically a floating sheerleg, built in 1980 in Budapest, Hungary, by the Hungarian Shipyards and Crane Factory Angyalföld Division. It originally had a lifting capacity of 120 metric tons, gradually raised to 200 tons by 2006, making it one of the largest in lifting capacity on Central European rivers. It is mainly used for building bridges, but is also commissioned to assist salvage operations, as well as to launch hydrofoils. It has rescued several ships; in 2019 it raised the sunken Hableány from the Danube at Budapest. The vessel is named after Scottish engineer Adam Clark (1811–1866).

SSCV Sleipnir Semi-submersible crane vessel launched in 2019

SSCV Sleipnir is a semi-submersible crane vessel (SSCV) owned and operated by Heerema Marine Contractors. It is named for Sleipnir, the eight-legged horse ridden by Odin in Norse mythology. The vessel is equipped with two revolving cranes built by Huisman Equipment B.V., each with a capacity of 10,000 t ; the main cranes can be operated in tandem to jointly lift 20,000 t. It was ordered in 2015 and built in Singapore by Sembcorp Marine. After its completion in 2019, SSCV Sleipnir succeeded Heerema's earlier SSCV Thialf as the largest crane vessel in the world.

<i>Chesapeake 1000</i> Heavy lift crane ship built in 1972

Chesapeake 1000 is a heavy lift sheerleg crane ship, owned by Donjon Marine Co., capable of lifting 1,000 short tons. Despite claims it is the largest boomable stiff-leg-derrick barge on the eastern seaboard of the United States, Left Coast Lifter, which was used for the assembly of the replacement Tappan Zee Bridge, can lift nearly double the capacity.

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