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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. [1] It was originally ordered for bridge construction and has since been used in several notable heavy lifts.
Some new cranes have a 120-tonne load capacity, enabling them to lift up to four 20-foot (6.1 m) or two 40-foot (12 m) containers. Cranes capable of lifting six 20-foot containers have also been designed. Post-Panamax cranes weigh approximately 800–900 tonnes, while the newer-generation super-post-Panamax cranes can weigh 1,600–2,000 tonnes.
A railroad crane has flanged wheels for use on railroads. The simplest form is a crane mounted on a flatcar. More capable devices are purpose-built. Different types of crane are used for maintenance work, recovery operations and freight loading in goods yards and scrap handling facilities.
1367, modification 1442–1444; oldest crane in the formerly German-speaking area: Stone and wood Stadskraan (Utrecht) Utrecht: Netherlands Oudegracht: 1402, treadwheeled city crane mainly used for wine barrels, several times upgraded, rebuilt on another location after it collapsed in 1837. Wood/stone Alter Krahnen: Trier: Germany Mosel
Hiab invented the world's first hydraulic truck mounted crane in 1947. [3] The name, Hiab, comes from the commonly used abbreviation of Hydrauliska Industri AB, a company founded in Hudiksvall, Sweden in 1944 by Eric Sundin, a ski manufacturer who saw a way to utilize a truck's engine to power loader cranes through the use of hydraulics.
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