Description

As the professional supplier of rock bits in China,we can supply all kinds of rock bits,such as PDC bits,TCI bits,rock bits,tricone bits,single cone bits,multicone bits,steel tooth bits,insert tooth bits,roller bits,drill bits,drilling tools,etc.

TCI bits series
**7
Soft Formation TCI Tricone Bits
The **7 TCI bits are used to drill low compressive strength,very soft formations.TCI bits maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection.This cutting structure design,combined with maximum cone offset ,result in high bit penetratione rates.The deep intermesh of cutter rows prevents bit bailing in sticky formations.
**7
Medium Formation TCI Tricone Bits
The **7 features aggressive chisel tungsten carbide insert on the heel rows and inter rows.This design provides a fast drilling rate and added cutting strcture durability in medium-to-medium hard for-mationes.The HSN rubber O-ring provides adequate sealing for bearing durability.
**7
Hard Formation TCI Tricone Bits
The **7 bits can be used to drill hard and abrasive forma-tions.Wear-resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge.Maximum numbers of hemispherical-durability and long life.
**7
Medium-Hard Formation TCI Tricone Bits
The **7 feature robust chisel tungsten carbide inserts on the heel row and conical on the inner rows.This design provides a fest drilling rate and added cutting structure durability in medium to medium hard formations.The HSN rubber O-rin provides adequate sealing for bearing durability.

 

TCI bits

Cutting Structure

High extension balling resistant cutting structure with forged teeth and self-sharpening tooth hardmetal for high penetration rates and long life in soft abrasive formations.

Bearing Package

Traditional ball and roller bearing, utilizing thrust buttons for axial bearing loads, gives reliable performance under a variety of rotary speeds and loads.

Premium Hardfacing

The tooth surfaces are fortified with premium, high-density tungsten carbide hardfacing applied by oxy-acetylene welding for superior wear resistance.

Center Jet Nozzle
(J feature)**

A fourth interchangeable jet is installed in the center of the bit to reduce bit balling or provide extra flow capacity. (Available only in 8 3⁄8" bits and larger.)

Forged Teeth

Challenger steel tooth bits *3

"(**9.2 mm) and smaller are manufactured with Varel’s exclusive forged tooth process. This innovative method provides stronger, more impact-resistant teeth when compared with milling because the metal flow lines from the forging process follow the tooth contours instead of being cut by machining.