Technical Level Analysis of Structures of Quarried Excavators …
To assess the quality of quarry excavator designs with a bucket capacity of 4.6–20 m 3 with hydraulic and mechanical shovels of the main manufacturers in the Russian Federation, JSC "Uralmashzavod" and LLC "IZ-Kartex" named P. G. Korobkova the criteria of technical level of their structures are used [17,18,19]:
