by Roland Baker
Copyright © 2017
Taller than the Statue of Liberty and heavier than the Eiffel Tower, this German mining machine is one of the largest land vehicles on Earth. In HBO’s futuristic Westworld, a bucket-wheel excavator like this claws out an entire city. In reality, these diggers work in open-pit mines. The excavator pictured here, called Bagger 288, uses its revolving wheel of buckets as a shovel to continually shift 8.5 million cubic feet of dirt a day. Once it reaches a seam of brown coal, or lignite, it can harvest 265,000 tons of fuel a day. And the crew this behemoth requires? A mere three to four people.
4conveyor belts receive overburden (soil and rock) or lignite from the buckets, and carry the material at more than 11 mph. Each belt is 10.5 feet wide, big enough to ferry a Smart car with ease.
8,600square feet of tread carry the Bagger’s 13,000 tons of weight at a stately 0.4 mph.
5,600feet of electrical cables (each the diameter of a man’s arm) feed electricity to the excavator. In any given moment, it can use as much juice as a city of 20,000 people.
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Published: Apr 25, 2017
Latest Revision: Apr 25, 2017
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Copyright © 2017