Excavator 287
Bagger 287 is one of the largest excavators in the world. The bucket wheel excavator belongs to RWE Power and is currently used in the Hambach opencast mine .
technology
Bagger 287 pumps 200,000 cubic meters daily. Its mass is 14,000 tons with a length of 225 meters and a height of 95 meters. Its paddle wheel is 21.6 meters in diameter and has 18 blades.
history
The 287 excavator was built in 1976. It was first used in the Fortuna opencast mine , and in 1987 it moved to Hambach.
After 33 years, the paddle wheel had to be completely renewed from July 20, 2009 in three months of work. The component with a mass of 55 tons was prefabricated in the technology center of RWE Power in Grefrath and assembled on site. At the same time, the main ball bearing measuring 21 meters , on which the excavator's superstructure rotates, was replaced. This consists of 272 spheres, each with a diameter of 32 centimeters and a mass of 132 kilograms.
The planning for the 10 million euro work took three years. On the occasion of this work, RWE created a film documentation that received the film prize World Media Festival Award intermedia-globe-Silver .
Individual evidence
- ↑ Jörg Abels: New teeth for the brown coal giant. In: aachener-zeitung.de. July 8, 2009. Retrieved July 15, 2018 .
- ↑ Film about Bagger 287 in the Hambach opencast mine wins World Media Festival Award. Press release. In: rwe.com. RWE Power AG, May 28, 2010, accessed on December 12, 2018 .
Coordinates: 50 ° 54 ′ 39 ″ N , 6 ° 30 ′ 10 ″ E