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1600 ton maximum lift capacity sheerleg Taklift 7 of Smit International. Fixed shear legs are most commonly found on floating cranes known as floating sheerlegs.These have heavy A-frame booms and vary in lifting capacity between 50 and 4,000 tons, and are used principally in shipbuilding, other large scale fabrication, cargo management, and salvage operations.
Underslung (lower-beam) launching gantry used for Skyline guideway construction (2015). A launching gantry (also called bridge building crane, and bridge-building machine) is a special-purpose mobile gantry crane used in bridge construction, specifically segmental bridges that use precast box girder bridge segments or precast girders in highway and high-speed rail bridge construction projects.
Using the main hoist, each crane is capable of lifting a maximum of 10,000 t (11,000 short tons) [3] at a radius between 27 and 48 m (89 and 157 ft); lifting capacity drops to 7,000 t (7,700 short tons) at a radius of up to 62 metres (203 ft), and 4,000 t (4,400 short tons) at 82 m (269 ft) radius; the maximum operating radius using the main ...
Taisun was built to install very large (up to 20,000 tons) integrated modules on top of a vessel's hull. Traditionally, offshore vessels such as drilling semi submersibles or FPSOs were built from the ground up in modules of 1000 to 2000 tons, which meant that much installation, hook up and commissioning work was left to be done on board where access is limited and efficiency is decreased.
A 2.5-ton screw jack. The jack is inserting the bar (visible lower left) in the holes at the top and turning.. A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew.
A hoist, the lifting component of a crane, travels along the bridge. If the bridge is rigidly supported on two or more legs running on two fixed rails at ground level, the crane is called a gantry crane (USA, ASME B30 series) or a goliath crane (UK, BS 466).
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