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In the 1950s two German mining firms ordered the world's first extremely large BWEs, and had three BWEs built for mining lignite near Cologne, Germany. The German BWEs had a wheel of over 16 m (52 ft) in diameter, weighed 5,500 short tons (5,000 t) and were over 180 m (600 ft) long, with eighteen crawler units for movement and could cut a swath ...
Model Type Length Height Width Weight Year introduced Year discontinued Bagger 293: Bucket-wheel excavator: 225 m (738 ft 2 in) [1] [2] 96 m (315 ft 0 in)
Bagger 293, previously known as the MAN TAKRAF RB293, is a giant bucket-wheel excavator made by the German industrial company TAKRAF, formerly an East German Kombinat. [ 3 ] [ 4 ] It owns and shares some records for terrestrial vehicle size in the Guinness Book of Records .
For example, Caterpillar's smallest mini-excavator weighs 2,060 pounds (930 kg) and has 13 hp; [8] their largest model is the largest excavator available (developed and produced by the Orenstein & Koppel, Germany, until the takeover 2011 by Caterpillar, named »RH400«), the CAT 6090, which weighs in excess of 2,160,510 pounds (979,990 kg), has ...
Bagger 288 (Excavator 288), previously known as the MAN TAKRAF RB288 [2] built by the German company Krupp for the energy and mining firm Rheinbraun, is a bucket-wheel excavator or mobile strip mining machine. When its construction was completed in 1978, Bagger 288 superseded Big Muskie as the heaviest land vehicle in the world, at 13,500 tons. [3]
A large dragline system used in the open pit mining industry costs approximately US$50–100 million. A typical bucket has a volume ranging from 40 to 80 cubic yards (30 to 60 cubic metres), though extremely large buckets have ranged up to 220 cubic yards (168 cubic meters). [12] The length of the boom ranges from 45 to 100 metres (148 to 328 ft).