6 1/4”mining tricone bit IADC 542 USED FOR coal ore

6 1/4”mining tricone bit IADC 545 USED FOR coal ore

Cutting structure :gauge rows and inner rows are conical type

Designed for soft formation with low compressive strength such as shale , soft limestone , dolomite with interlayers and coal ore

Application 15000-23000 psi  100-158mpa

Shirttail protection hard metal on lug , wear resistant carbide on shirttail lip and lug

Product specification

IADC ODEl545/524

Bearing type roller-ball-thrust button /sealed bearing

Circulation type jet air

Connection 3 1/2”API

BIT DIAMETER 159MM 6 1/4

Product weight 20kgs

Weight on bit 125000-31250lbs

Rotary speed 110-80rpm

Air back pressure 0.2-0.4mpa


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