Everything about Bucket-wheel Excavator totally explained
Bucket-wheel excavators are
heavy equipment used in
surface mining and
civil engineering. They are among the largest
vehicles ever constructed, and the biggest bucket-wheel excavator ever built, the
MAN Takraf RB293, is the largest terrestrial vehicle in human history.
Operation
The excavation component itself is a large rotating wheel mounted on an arm or boom. On the outer edge of the wheel is a series of scoops or buckets. As the wheel turns, the buckets remove soil or rock from the target area and carry it around to the backside of the wheel, where it falls onto a
conveyor, which carries it up the arm toward the main body of the excavator. Additional conveyors then may carry it further; in some cases, several long conveyors are placed end-to-end, each supported by a large vehicular base (usually with
caterpillar tracks).
Size
Especially large bucket-wheel excavators, over 200
meters long and up to 100 meters in height, are used in
German strip-mining operations, and are the largest earth-movers in the world. These tremendous machines can cost over $100 million, take 5 years to assemble, require 5 people to operate, weigh more than 13,000 tons, and have a theoretical capacity of more than 12,000 m³/h.
Specifically, the RB293 bucket wheel excavator manufactured by
MAN Takraf is recognised by
Guinness World Records as the largest land vehicle.
(Google Maps view of such an excavator
(External Link
). Another view with two excavators
(External Link)).
Popular Culture
In
Transformers Cybertron, the character
Metroplex has the ability to transform into a Bucket-wheel excavator.
Further Information
Get more info on 'Bucket-wheel Excavator'.
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