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 model achieved the industry's first flat nose without its boom sticking out by installing a high mount short base 6 leveled boom. It excelled at getting into small spaces and had extraordinary workability with the smallest boom tip outlet passage (3.38m) and the smallest rear turning radius (1.3m) of its class.
Also the industry's first slide tilt jib (3 leveled tilt jib with the built-in boom) provided a boom 23.0m of the max lift above the ground and jib 26.1m. Overhang and retracting are very easy, which made loading onto and accessing roofs of buildings smooth.
An outrigger increased the number of levels for overhang; 5 levels with type X and 6 levels with type H. The width of overhang was the widest in its class, making hanging work at high places more stable.
Maximum rating load: 10 tons
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.