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The ACCO super bulldozer measured 40 feet in length and 10 feet in height, with a blade stretching 23 feet wide. The blade was the biggest thing Caterpillar has ever manufactured. The machine had an operating weight of a staggering 183 tonnes. The ACCO also had two 675hp engines with a total combined output of 1350hp. It was built in Northern Italy in the 1980s and was meant to be sent to Libya to work in land management, but a trade embargo stopped it from ever being exported there. It never worked a day, and sat in the yard of a earthmoving company in Italy waiting to be restored.  This Komatsu is the world's largest production dozer. With an operating weight of 153 tonnes and an 858kW engine, it is capable of generating 1167hp and 1800rpm during production. This dozer has a 3.6m high and the 7.4m wide blade that can push 90 cubic yards (or 68 cubic meters) of materials. This was first manufactured by Komatsu in 1992, but was discontinued in 2012. 53 machines of this size and scale were made during that time, 14 of which were sold to Australian mining or quarrying companies. Alcoa Mining in Australia bought the very last one in 2012.  |