Trenchers vs. Excavators
Sep 07, 2016· "Today''s excavators, with the right type of ripper bucket attachment, can dig about 95% of cemented rocky soils and/or rock that has traditionally been the domain of trenchers," says ''s Hendry. "It is the remaining 5% of rock where the trencher is the right choice. The trencher or rock saw can carve some very hard rock.