Realization: 2010
Purchaser: Severočeské doly, a.s. – Doly Bílina
The reconstruction aim was replacement of worn parts of the large-scale excavator that are heavily worn from the last major overhaul due to operation intensity and operation time. Modernization of electrical parts, the bucket wheel boom and the bucket wheel drive was performed.
Modernization and major overhaul of the KU 300.13/K71 large-scale excavator are based on reconstruction and overhauls of the KU 300 large-scale excavator performed in the Bílina Mines (Doly Bílina) in 2009. Another reason for reconstruction is also effort to ensure maximum unification with the above machine.
Main parameters
| bucket wheel diameter | 7.5 | m |
| number of buckets | 13 | |
| bucket volume | 365 | l |
| bucket wheel drive power | 500 | kW |
| maximum force on bucket wheel adjusted by disc clutch slipping | 350 | kN |
| maximum high cut height: on the level of ± 1:20 | 18.4 | m |
| slant 1:11 | ||
| down-slope | 18.7 | m |
| up-slope | 16.1 | m |
| maximum low cut depth: | ||
| on the level of ± 1:20 | 2.7 | m |
| slant 1:11 | ||
| down-slope | 0.1 | m |
| up-slope | 2.9 | m |
| bucket wheel speed control | 50 up to 120 | % |
| bucket wheel peripheral force nominal | 146 | kN |
| theoretical output for bulk soil (nominal) | 1,500 | m3/h |
