It is difficult to imagine modern construction or quarry work without a bulldozer. This universal human assistant can level a construction site, remove garbage from it, help with coal mining from open pits, and just trample silos. The mechanism itself is not complicated in terms of device, unpretentious in operation, but easy to operate.
The Japanese Komatsu machine-building complex is widely known for its production of road, construction and specialized equipment, including military and designed for large-scale installation of gas and oil pipelines. The company, which has united 22 factories and several research and design laboratories, completely independently creates branded units with the installation of its own components and parts. Constant technical innovations allow Komatsu bulldozer equipment to keep up with the times, not inferior, and often even ahead of European models.
The first models of bulldozers began to be produced since 1947, currently numbering more than 50 models with modifications having operational weights from 8 to 108 tons and power values up to 900 hp.
As in any kind of equipment, there are dwarfs and giant strongmen among the bulldozers.
The largest of the really used in the work was the Japanese supergiant Komatsu D575A. The world got to know this tech giant more than 35 years ago when it was presented at the Japanese branch of the 1981 Texas World Tech Fair.
If from a distance the unit simply aroused respect, then up close it shook with its parameters. It is almost three times the height of a human and reaches 5 meters. The length of 12.7 meters also inspired respect. Most of all, the working mass of the creation of Japanese engineers was striking — 142 tons of metal assembled into a powerful machine were a real man-made miracle. Finally, hardworking Japanese specialists were able to equip this human assistant with a 1000 horsepower power plant.