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A gantry crane is a crane built atop a gantry, which is a structure used to straddle an object or workspace. They can range from enormous "full" gantry cranes, capable of lifting some of the heaviest loads in the world, to small shop cranes, used for tasks such as lifting automobile engines out of vehicles.
A small motor-boat lifted from the water by a travel lift at La Rochelle, France, 2016. A travel lift or travelift (also called a boat hoist, boat gantry crane, or boat crane) is a specialised type of crane used for lifting boats out of the water and transporting them around docks or marinas. [1]
Each crane has a span of 140 metres (459 ft) and can lift loads of up to 840 tonnes to a height of 70 metres (230 ft). Their combined lifting capacity of almost 1,700 tonnes is one of the largest in the world. Prior to commissioning, the cranes were tested up to 1,000 tonnes, which bent the gantry downwards by over 30 centimetres (12 in).
In shallow water, a Goliath crane could be used. This is a gantry crane with no jib. A trolley runs across this gantry and can move side to side across the line of the breakwater, whilst carrying a load. It ran on baulks of timber laid temporarily on either side of the construction.
Reconstructed gantry crane of Bruges operated by two lateral treadwheels. In contrast to modern cranes, medieval cranes and hoists - much like their counterparts in Greece and Rome [15] - were primarily capable of a vertical lift, and not used to move loads for a considerable distance horizontally as well. [12]
Taisun (Chinese: 泰山; pinyin: tàishān; Taishan) is a gantry crane with a safe working load of 20,000 metric tons (22,046 short tons). [1] Taisun was designed by DHHI (Dalian Huarui Heavy Industry) [2] and built for the installation of very large modules in semi submersibles and FPSO projects.
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Gantry crane A gantry crane to put a stagecoach on a flat car. A gantry crane has a hoist in a fixed machinery house or on a trolley that runs horizontally along rails, usually fitted on a single beam (mono-girder) or two beams (twin-girder). The crane frame is supported on a gantry system with equalized beams and wheels that run on the gantry ...
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