Bagger 293

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.^[5][6]

Bagger 293

Bagger 293 in the Hambach brown coal mine, 2008
Class overview
Name	MAN TAKRAF RB293 (1995-2003) Bagger 293 (2003-Present)
Cost	€92.46 million (2007) (equivalent to €114.23 million in 2022)[1] or US$100 million (2007) (equivalent to US$141.6 million in 2023)[2]
In service	1995
History
Germany
Name	Bagger 293
Builder	TAKRAF
Laid down	1985
Launched	1990
Commissioned	1995
Notes	Second largest ground vehicle ever built (after the Overburden Conveyor Bridge F60)
General characteristics
Class & type	Type SRs 8000-series Bucket-wheel excavator
Tonnage	14,200 t (31,300,000 lb)
Length	225 m (738.2 ft)
Beam	46 m (151 ft)
Height	96 m (314.9 ft)
Installed power	1 x 6,413 kW (8,600 hp) powered electric motor[3] 1 x 10.15 MW (13,611 hp) external coal power plant[4] Total: 16.56 MW (22,207 hp)
Propulsion	12 x caterpillar tracks
Speed	2 to 10 m (6.6 to 32.8 ft) per minute (0.1 to 0.6 km/h)
Capacity	Blade capacity: 21 m (69.9 ft) in diameter, 20 buckets each holding 19.6 cubic yards (15.0 m3) or 16.5 short tons (15.0 t)
Complement	5[4]

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.^[7]

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.^[4]

Statistics

Bagger 293 shares with Bagger 288 the Guinness World Record for tallest terrestrial vehicle, at 96 metres (315 feet) tall. It is 225 metres (738 feet) long (same as Bagger 287), weighs 14,200 tonnes (31 million pounds), and requires five people to operate. It is powered by an external power source providing 16.56 megawatts. The bucket-wheel itself is over 21.3 metres (70 feet) in diameter with 18 buckets, each of which can hold over 15 cubic metres (530 cubic feet) of material.

It can move 240,000 m³ (8.5 million cu ft)^[8] of soil per day, weighing around 218,880 tonnes (480 million pounds), the same as Bagger 288.

See also

• List of largest machines
• Bucket-wheel excavators
• Landships