What is a luffing crane?
8/8/2009
What is a luffing crane?
A crane in which, during any alteration of radius, an automatic device causes the load to move horizontally.
A level luffing crane is a crane mechanism where the hook remains at the same level whilst luffing; moving the jib up and down, so as to move the hook inwards and outwards relative to the base.[1]
Some types of crane are inherently level luffing: those with a fixed horizontal jib, such as gantry, hammerhead or the fixed-jib tower cranes commonly used in construction. Usually though, the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.
Level luffing is most important when careful movement of a load near ground level is required, such as in construction or shipbuilding. This partially explains the popularity of fixed horizontal jibs in these fields.
Tag:luffing crane,Luffing Cranes
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