Long before Cat excavators became the standard base machine for amphibious conversions, Link-Belt excavators were doing this same kind of wetland and waterway work. These photos capture a set of vintage Amphibious Link-Belts from the 1980s, machines that were, in their era, the workhorses of marsh and swamp operations across the Gulf Coast and beyond.
The amphibious excavator concept hasn't changed much since then: take a standard excavator, strip the factory undercarriage, and replace it with a pontoon system built to float, self-propel, and dig from water or soft ground. What has changed is the base machinery and the engineering behind the conversion itself, including modern hydraulics, stronger materials, and decades of field-tested refinements that trace directly back to builds like these.
Machines like these '80s Link-Belts are part of the reason amphibious equipment has such a long track record in industries like oil and gas, wetland mitigation, and waterway maintenance. The base excavator brands have shifted over time, but the core idea, go where wheeled and tracked equipment can't, has stayed exactly the same.
See how that history has shaped our current lineup: explore our amphibious excavators or contact Wetland Equipment Company to learn more.
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