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Floating cranes are capacious and heavy-duty cranes frequently used for fleeting applications in ports. They are essential part in the port's cargo handling equipment. They are widely used in loading and unloading specialty heavy or awkward loads on and off ships. The floating cranes may be self-propelled, as they will have powerful diesel generators to work the crane winches, which can be switched to propel the craft when moving between jobs, else a tug will be called to shift the crane. These cranes are often mounted on a wide and very strong pontoon barge, flat bottomed but well subdivided into many tanks. They usually have the facility to move ballast water around in the hull to prevent the craft listing when a load is lifted. The enormous capacity of these cranes make them suitable for use in heavy engineering projects like bridge construction, sea defense and major port construction etc.
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