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MASSIVE EARTHMOVING MACHINES This programme looks at earthmoving machines in
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use at open-cast coal mines in the United States and Germany. Among the pieces of equipment are some of the largest of their kinds to be found anywhere. They are all seen working.
In Wyoming we see the spectacular Bucyrus-Erie 2570-WS walking dragline. With a 160 cubic yard capacity, this is the largest dragline working in North America. Two electric shovels, each of 82 cubic metres capacity, tie as the largest in the world: the P & H 4100XPB and the Bucyrus 495 HR. They are both shown in full operation.
Other large machinery filmed in Wyoming includes the Caterpillar 797B 400-ton capacity truck (co-equal as the world's largest). the Caterpillar 24H motor grader and 657E scraper (both currently the world's largest). However, the programme is not just about the machinery. It deals with how these very large-scale mines function, from taking off the overburden, through coal extraction, hauling and rail transport, to the re-filling and landscaping of the site.
Then in a smaller mine in Maryland we see two more machines that are the world's largest of their types: the 1,150 horsepower Komatsu D575A bulldozer and the Bucyrus-Erie 295-BII diesel shovel.
Lignite (brown coal) mining in Germany is the home of bucket wheel excavators and miles of conveyors. The programme takes a detailed look at the world's largest terrestrial moving machine: bucket wheel excavator 288 at RWE enterprises, Garzweiler.
The programme has been co-ordinated and scripted by Keith Haddock, retired mining engineer and author of many books on mines and their equipment. Approx. 100 mins.
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