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An amphibious excavator (or pontoon excavator or floating excavator) is a type of excavator that can perform dredging while afloat on soft terrain such as swamp, wet land, and shallow water. An amphibious excavator is better adapted for removing silty clay, clearing silted trenches, swampland operation, and shallow water operation than traditional barge-mounted dredgers.


Walking and working

The amphibious excavator can walk or work in water, because the chassis crawler floats on sealed pontoons. It may swing or even roll over when excavating with no support underneath. It moves using a dual-body boat form buoyancy tank. A reducer drives the crawler chain, allowing free and smooth movement. Its upper structure is a modified excavator that allows 360° full rotation and hydraulic operation.


Sealed pontoon

The pontoons are manufactured from high tension steel and they are atmospheric corrosion- and saltwater-resistant. Each pontoon has 5 independent water tight compartments with maintenance holes. The bottoms of the pontoons are reinforced for rough terrain operation. The power for the pontoon tracks is provided by an excavator engine and main hydraulic pumps with traveling
motors An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power g ...
.


Accessories

*Side pontoon—increase flotation *
Piling A deep foundation is a type of foundation that transfers building loads to the earth farther down from the surface than a shallow foundation does to a subsurface layer or a range of depths. A pile or piling is a vertical structural elemen ...
vibrator *Excavation bucket * Clamshell * Demolition sorting grab * Dredging pump


See also

* Crawler excavator


References


External links

{{Commons category-inline Excavators Amphibious vehicles