Bagger 293
{{Short description|Giant bucket wheel excavator made by the German industrial company TAKRAF}}
| {{Infobox ship begin
| infobox caption = yes }} {{Infobox ship image | Ship image = 350px | Ship caption = Bagger 293 in the Hambach brown coal mine, 2008 }} {{Infobox ship class overview | Name = *MAN TAKRAF RB293 (1995-2003)
| Builder = TAKRAF | Operator = RWE | Class before = | Class after = | Subclasses = | Cost = {{ShipCost|FRA|92.458|m|year=2007}} or {{ShipCost|USA|100|m|year=2007}} | Built range = | In service range = 1995 | In commission range = | Total ships building = | Total ships planned = | Total ships completed = | Total ships cancelled = | Total ships active = | Total ships laid up = | Total ships lost = | Total ships retired = | Total ships preserved = }} {{Infobox ship career | Hide header = | Ship country = Germany | Ship flag = | Ship name = Bagger 293 | Ship namesake = | Ship ordered = | Ship builder = TAKRAF | Ship laid down = 1985 | Ship launched = 1990 | Ship commissioned = 1995 | Ship christened = | Ship maiden voyage = | Ship struck = | Ship honors = | Ship fate = | Ship notes = Second largest ground vehicle ever built (after the Overburden Conveyor Bridge F60) }} {{Infobox ship characteristics | Hide header = | Header caption = | Ship class = Type SRs 8000-series Bucket-wheel excavator | Ship tonnage = {{convert|14,200|tonne|lb|abbr=on|sigfig=3}} | Ship length = {{convert|738.2|ft|m|0|abbr=on|order=flip}} | Ship beam = {{convert|151|ft|m|0|abbr=on|order=flip}} | Ship height = {{convert|314.9|ft|m|0|abbr=on|order=flip}} | Ship power = *1 x 6,413 kW (8,600 hp) powered electric motor{{cite web|url=https://ricoeurope.com/gb/news/post/bagger-293-unearthly-giant-of-the-mining-world.html|title=Bagger 293: Unearthly Giant of the Mining World|website=Rico Europe}}
| Ship propulsion = 12 x caterpillar tracks | Ship speed = {{convert|2|to|10|m|ft|abbr=on}} per minute (0.1 to 0.6 km/h) | Ship range = | Ship capacity = Blade capacity: {{convert|69.9|ft|m|0|abbr=on|order=flip}} in diameter, 20 buckets each holding {{convert|19.6|cuyd|m3|1}} or {{convert|16.5|ST|t}} | Ship armament = }} |
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.{{cite web|url=https://www.telegraph.co.uk/finance/newsbysector/industry/mining/8433249/The-worlds-largest-diggers-in-pictures.html?image=2|title=The world's largest diggers: in pictures|date=6 April 2011|publisher=|via=www.telegraph.co.uk}}{{cite web|url=https://www.wired.com/2009/10/giant-gadgets/|title=Monstrous Mechanical Marvels: 9 Enormous Gadgets|first=Brian X.|last=Chen|date=5 October 2009|publisher=|via=www.wired.com}}
It owns and shares some records for terrestrial vehicle size in the Guinness Book of Records. Bagger 293 was built in 1999, one of a group of similar sized 'sibling' vehicles such as the Bagger 281 (built in 1958), Bagger 285 (1975), Bagger 287 (1976), Bagger 288 (1978), and Bagger 291 (1993). Moreover, like the Bagger 288, the Bagger 293 cost around 100 million US dollars at the time of its construction with exactly the same construction and assemblage time period of ten years.{{cite web|last1=Gramme|first1=Helmo |author2=Benoit Michel|title=Cours Extreme Engineering|date=2014|publisher=HELMo — Haute École Libre Mosane|page=7|url=http://benoitmichel.be/extreme/Cours_EE_2014.pdf}}
It is used in a brown coal mine near Hambach in Germany. It is called Bagger 293 by its current owner, RWE Power AG (the second-largest energy producer of Germany). It was called RB293 by its former owner, the brown coal company Rheinbraun, which in 1932 became a subsidiary of RWE. During an internal reshuffle in 2003 it merged with another daughter company to form RWE Power AG. Manufacturer TAKRAF generally refers to it as an excavator of the Type SRs 8000.
Like its siblings, the Bagger 293 is operated by a disproportionately small crew of just five.
Statistics
Bagger 293 shares with Bagger 288 the Guinness World Record for tallest terrestrial vehicle, at {{convert|96|m|ft|abbr=off}} tall. It is {{convert|225|m|ft|abbr=off}} long (same as Bagger 287), weighs {{convert|14200|tonne|lb}}, and requires five people to operate. It is powered by an external power source providing 16.56 megawatts. The bucket-wheel itself is over {{convert|21.3|m|ft|abbr=off}} in diameter with 18 buckets, each of which can hold over {{convert|15|m3|ft3|abbr=off}} of material.
It can move {{cvt|240,000|m3|}}{{cite web |url=https://www.popsci.com/bagger-288-facts |title=This excavator is one of the largest land vehicles on Earth |last=Atherton |first=Kelsey |date=May 2017 |website=Popular Science |publisher=Bonnier Corporation |access-date=27 January 2019}} of soil per day, weighing around {{convert|218880|tonne|lb}}, the same as Bagger 288.
See also
References
{{reflist}}
External links
{{commons category}}
- [http://news.softpedia.com/news/How-Does-the-World-039-s-Largest-Land-Vehicle-Work-54776.shtml Softpedia.com]
- [https://www.takraf.tenova.com/product/bucket-wheel-excavators/ Tenova TAKRAF official website] (Products: Mining Equipment: Bucket Wheel Excavators)
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Category:Bucket-wheel excavators
Category:Coal mining in Germany
Category:Buildings and structures in Rhein-Erft-Kreis