Amphibious excavators are special earth-moving machinery engineered for waterlogged soft terrain. Equipped with sealed pontoon tracked chassis for dual land-and-water mobility, they differ from standard land excavators by operating reliably across swamps, tidal flats, shallow rivers, silty fish ponds and floodwater zones with minimal sinking risk. Machines in this product line feature low ground contact pressure and corrosion-proof buoyancy hulls paired with mature hydraulic assemblies, executing river desilting, tidal flat reclamation, wetland ecological restoration, aquaculture pond upgrading and flood emergency debris clearance. Compact amphibious models navigate narrow waterways and fragmented marshland efficiently, while larger units serve large-scale dredging and land reclamation projects. Widely deployed in water conservancy construction, coastal flat development, ecological remediation and flood emergency response, they resolve the accessibility limitations of regular construction equipment on soft waterside terrain, cutting auxiliary spending on cofferdams and working barges to lower overall project expenditure for water-related construction works.