The dry excavator is the most common form of hydraulic excavator and operates — in contrast to the amphibious excavator — on solid, dry ground. The term is primarily used to distinguish from dredging methods (suction dredgers, amphibious excavators, bucket-chain dredgers on pontoons) and encompasses all conventional crawler and mobile excavators.
Dry excavators are used across the entire spectrum of construction: building construction (excavation, foundation trenching), civil engineering (sewage systems, utility trenches), road construction (subgrade, embankments), demolition, recycling, and material handling. The machines operate on stable ground and may require excavator mats if bearing capacity is limited.
The boundaries between dry and dredging excavators are increasingly blurring: amphibious excavators (with floating pontoons on the undercarriage) can work both on land and in shallow water. Long-reach excavators with 18–24 m reach excavate water bodies from dry shorelines — technically dry excavators, functionally serving as dredging replacements.