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ROLLER CONE BITS 250.8 uAIR742 (R1404) SUCCESSFULLY TESTED

26.10.2015

Uralburmash successfully tested pilot batch of roller cone bits 250.8 uAIR742 (R1404) in the applications of open pits Glavny and Yuzhnaya Zalezh of EvrazKGOK, JSC – this section is characterized by the most complicated drilling applications among the open pits of EvrazKGOK, JSC.

Drill bit 250.8 uAIR742 (R1404) features new cutting structure layout and cutter shape. In comparison with the similar bits previously used in these pits, meters drilled increased by 35% with ROP up to 18 m/h.


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Volgaburmash and Uralburmash are Russia’s largest companies producing rock-cutting tools