At the end of the 80s of last century, the German energy giant RWE energy company made a decision from 90s to gradually expand the production of its open pit coal mines. The key projects include the "Garzweiler" two new, "Hambach" mining area development and so on. The key equipment for the development of the "Hambach" mine area is the famous RB292 and RB293 huge earth rock stripping system. The two systems consist of a giant bucket wheel excavator equipped with capability, a high-speed conveyor belt and a huge dumper. As an important component of the system, the two maximum capacity of 300 thousand cubic meters / day of the "Absetzer" dump is an unprecedented big guy in the field of global dumping machines, all made by the experienced German KRUPP group.
In 1991, KRUPP successfully created the RB292 peeling system, a supergiant, named Absetzer760, after only three months of testing, and was successfully put into use in the new area of the "Hambach" mine at the end of the year. After that, KRUPP succeeded in building up the Absetzer761 of the RB293 peeling system at the beginning of 1995, and after three months of testing, it was put into use in the new area of the "Hambach" mine in the same summer. At this point, the record of the world's largest self-propelled earth removal equipment was refreshed by 760 twin brothers, "KRUPP" and "761".
The machine is 193 meters long, 42 meters wide, and 64 meters high. The installed power is 11600 kilowatts and the total weight is 5900 tons. The cost per unit is as high as 48 million euros. The positions of Absetzer760 and Absetzer761 are at the end of the RB292 and RB293 peeling system, both in the dumping ground and responsible for the orderly stacking of the soil and rock transported by the high speed belt conveyor as planned and required. The annual discharge of two supergiant beasts in 2006 has reached an astonishing 65 million cubic meters. It has created the latest world record of the annual discharge of soil in the field of the machine, which is the world record of the tenth times that the two people have broken their own single machine annual discharge since the "Hambach" New Area peeling out in 1996. Now "760" and "761" brothers have been given a new mission, as the main force of the "Hambach" mining area of old mining areas, the implementation of the mine side mining and soil recovery plan. In the next few years, the brothers will fill the valley of the past "Bagger" beast with the speed of a canyon each year.
Absetzer 755 is the second largest self-propelled soil dumping equipment in the world so far, second only to the "king of dump" Absetzer760 and Absetzer761, and is the full-time supporting equipment for the "land carrier" Bagger 288 wheel bucket excavator. The captain is 187 meters, 38 meters wide and 57 meters high, with a total power of 8750 kilowatts and a total weight of 5200 tons. It is also the world's first dumping ground capacity of 240 thousand cubic meters per day, made by the German KRUPP joint DEMAG, AEG company in 1976, and now with 288 in the German Garzweiler open coal mine. It needs 4 people to operate, the length of the unloading arm is 98 meters, the maximum moving speed is 546 meters per hour, and the weight of long-distance migration is 4484 tons.
