The bucket wheel excavator Bagger 288, for example, can move as much soil as 240,000 cubic meters per day, weighs as much as 8,600 automobiles, and is as tall as the Statue of Liberty. It has been working in the 22-kilometer-distance Garzweiler open-pit lignite mine since 2001. Before that, it was a coal miner. The “Bagger 288” was the biggest bucket wheel excavator when it was built in 1978, and it is still one of the biggest land vehicles today.
Machines that mine massive quantities of minerals over extended periods of time must be productive and economical. And this is where the continuous mining technology from ThyssenKrupp is useful. The ideal choice is an excavator with bucket wheels: They can carry more than 10,000 dump truck loads, or 240,000 cubic meters, of overburden and lignite per day. The material is gathered by the bucket wheel and moved on conveyors that are three meters wide.
With 225 meters in length, 96 meters in height, and a bucket wheel with 18 buckets that measure 22 meters in diameter, the Bagger 288 bucket wheel excavator has exceptional dimensions. 840 kW motors power four wheels. The 3,360 kW aggregate drive output of the buckets is more than 30 small cars’ worth of power. Through thick wires, the “Bagger 288,” which has more than 120 kilometers of cabling, receives 30,000 volts of power. The “Bagger 288” can carry 12,840 tons, making it a real heavyweight. However, whether traveling over soil, gravel, or even ɢʀᴀss, the excavator only leaves footprints slightly deeper than a huᴍᴀɴ footprint due to the enormous surface area of its twelve crawlers.
This was a crucial factor to take into account when moving the bucket wheel excavator from the Hambach mine to Garzweiler. The “Bagger 288” traveled the 22 kilometers in three weeks at a top speed of ten meters per minute, a minimum turning radius of 100 meters, and a maximum grade capability of one in eighteen.
One operator ᴍᴀɴages all excavator operations from the cab. During each movement, the machine’s components and safety systems guard against ᴀᴄᴄɪᴅᴇɴᴛs. The cab may be raised and lowered like an elevator to ensure that the operator always has a clear view. The Bagger 288 excavator’s undercarriage and superstructure are joined by a sizable 20-meter-diameter ball-bearing slewing ring. The bucket wheel may be moved into the desired position by using this bearing, which enables the complete superstructure to revolve.
Let’s see Biggest Excavator Bagger 288 – A giant among bucket wheel excavators in the ᴀᴡᴇsome video below.
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Video resource: Rathergood