Cold Treatment of Parts of ESh-20.90S Dragline for Mining Applications at the Uralmashzavod Plant

Results of laboratory and industrial testing of the effect of cold treatment on the structure, hardness and size stability of parts such as spools and sleeves entering the hydraulic drive of an ESh-20.90S dragline (bucket volume 20 m3, boom length 90 m) for mining applications under the conditions of the Far North are presented.