While equipment built to accommodate urban environments, by generating less noise, vibrations and emission, became more common, super sized equipment that could withstand harsh working conditions in places like giant mines were also developed.
This was a large and high capacity model with the 42"x30" crusher. "Vibrating Grizzly Feeder" improved productivity and life cycle of the crusher by screening out gravel and small broken pieces in advance.
There were other construction machines built by Komatsu over the years. We can see how the various designs mirrored different eras if we look at them set against the flow of history.