Monday 19 November 2012

The Various Forms of Gantry Cranes

Gantry cranes or overhead bridge cranes are a form of cranes which are used to lift objects by a hoist fitted on a trolley, or rails fitted under a beam.  They have horizontal mobility and are very useful in numerous occasions of load lifting and displacement.  In general, a bridge crane refers to movable hoisting mechanism, travelling on a fixed runway.

Gantry cranes are usually made of steel or aluminium, and have the endurance to lift tons of weight.  The height of the gantry cranes need to be set up for specific functionality to be performed in their desired manner and convenience.  There are a host of gantry cranes available in the market.  Some of the most common among them being:
  • ·         Single girder: are used in small scale industries for lifting comparatively lighter loads, and have wheels that can be fixed in different areas of the factory.
  • ·         Double girder: much similar to the single girder, only difference being the ability to endure much heavier loads.
  • ·         Fixed height: are generally found in factories.  These types of gantry cranes cannot be changed to different levels of height.
  • ·         Adjustable height: These types of gantry cranes have ridges on their support beams, because of the reason which their height can be adjusted as per the need.
  • ·         Rail mounted: are generally found in shipyards and steel yards, where they are powered by steam or electricity to displace the loads.
These are just few of the most common variants of the gantry cranes.  After outlining your requirements, you can conduct a market study and select the best possible gantry crane for your needs.

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