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API rotary roller mining drill bits IADC425 for gold mining

Product Description

Wholesale mining tricone rock drill bits with discounted price from China factory.
Bit Description:
IADC: 425 - TCI sealed roller bearing bit with gauge protection for soft formations with low compressive strength and high drillability.
Compressive Strength:
65 - 85 MPA
9,000 - 12,000 PSI
Ground Description:
Long intervals of very soft poorly compacted shales, dolomites, sandstones, clays, salts and limestones.
We can offer mining tricone rock drill bits in a variety of sizes and most of  IADC Codes.

Product Specification

Basical Specification
Size of Rock Bit 10 5/8”
270mm
IADC Code IADC425
Thread Connection 6 5/8” API REG PIN
Product Weight: 74Kgs
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealed Bearing
Circulation Type Jet Air
Operating Parameters
Weight on Bit: 10,630-21,250Lbs
Rotary Speed: 120-90RPM
Air Back Pressure: 0.2-0.4 MPa
Ground Description: Long intervals of very soft poorly compacted shale,dolomite,sandstone,clay,salts and limestone.