Withstand Wear And Tear Roller Cone Bit For Blast Hole Drilling And Mining

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Description of drill bit

IADC 7 SERIES DRILL BITS

The medium hard formation TCI tricone bits features robust chisel tungsten carbide inserts on the heel row and conical on the inner rows.

This design provides a fast drilling rate and added cutting structure durability in medium to medium hard formations.

The HSN rubber O-ring provides adequate sealing for bearing durability.

Roller cone bit consists of a bit body with three moveable conical rollers equipped with cemented carbide inserts.

The idea is the crush the rock by rolling the inserts against the rock with appropriate rotation speed and feed force.

Three types of cemented carbide inserts are used for roller type bits being Chisel, Conical, and Hemispherical.

Carbide inserts are distributed over the three rollers in such a manner that the entire bottom of the hole is worked on when the drill bit is rotated. Roller bits for hard and abrasive rock generally have spherical cemented carbide inserts closely spaced.

Roller bits for softer rock may have the chisel and conical carbide teeth or quality milled steel teeth as the cutters.

A roller bit will utilize nozzles from which the compressed air escapes to lift the cuttings from the bottom of the hole.

All bits the above are manufactured according to strict standards, set forth by the American Petroleum Institute (API).

And classified according to characteristics set forth by the International Association of Drilling Contractors (IADC).

How to read an IADC Code properlyHow To Read IADC 1.pdf

Main Products We Provide

We mainly provide Tricone Bits(TCI Drill Bits) for open pit mining.

a). Type: Tungsten Carbide Insert (TCI)

b). Formation Application: Soft to Hard Formation

c). Size Available: 7 7/8''~26''

d). Popular IADC Code: IADC545,645,725,735,745,825,835

Don’t see the bit you are looking for? Give us a call, we can customize any bit to fit your unique circumstances.