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.
Its new elements included the automatic transmission with a column shift type torque converter that smoothed take off and running, a hydraulic system that allowed the machine to perform different operations simultaneously, and a slim cab with wide visibility. It was also fitted with an engine with emission controls, and the exterior was completely redesigned as well.
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.