Sealed Bearing Rock Roller Bits Using High Mn Steel For Various Formation
Click here for catalogueTCI DRILL BIT.pdf
Medium to Medium-Hard Formation
Application: For use in moderately abrasive consolidated formations with compressive strength ranging between 140 – 485 Mpa such as hard limestone, quartzite, granodiorite, and medium grade metamorphic formations
Cutting structure: These bits are characterized by moderately spaced conical inserts with medium projection. This configuration promotes good penetration rates in medium hard and moderately abrasive formations. Smaller carbide inserts are provided on the gage and inner rows or hard metal is deposited in the nose area to contain shell erosion and improve performance.
- Compression Strength: 20,000 – 70,000 psi
- Drilling Speeds: 60 – 100 rpm
- Jet Circulation: All sizes
- Weight on Bit (WOB): 2,500 – 7,000 lbs/in of bit diameter
Advantage:
1. Strictly select the material to ensure the reliable quality. Bad steel and tungsten carbide inserts won't be used.
2. Strictly act according to the ISO9001 standard, and control by full-scale inspection.
3. Sales and support people are highly trained in the latest rock drilling technology and can offer you expert advice on what products will best fit a specific end use application.
How to read an IADC Code properlyHow To Read IADC 1.pdf
| First Digit |
TOOTH |
| 1 |
Steel tooth bits for Soft Formation |
| 2 |
Steel tooth bits for Medium Formation |
| 3 |
Steel tooth bits for Hard Formation |
| 4 |
TUNGSTEN CARBIDE INSERT BITS
For varying formation hardness with 4 being the softest and 8 the hardest. |
| 5 |
| 6 |
| 7 |
| 8 |
| Second Digit |
FORMATION |
| 1 |
1,2,3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest. |
| 2 |
| 3 |
| 4 |
| Third Digit |
BEARING/SEAL TYPE |
| 1 |
Standard open bearing roller bit |
| 2 |
Standard open bearing roller bit, air-cooled |
| 3 |
Standard open bearing roller bit with gauge protection |
| 4 |
Sealed roller bearing bit |
| 5 |
Sealed roller bearing bit with gauge protection |
| 6 |
Journal sealed bearing bit |
| 7 |
Journal sealed bearing bit with gauge protection |
| Fourth Digit |
ADDITIONAL FEATURES |
| A |
Air application |
| R |
Reinforced welds |
| C |
Center jet |
| S |
Standard steel tooth |
| D |
Deviation control |
| X |
Chisel insert |
| E |
Extended jet |
| Y |
Conical Insert |
| G |
Extra gage protection |
| Z |
Other insert shape |
| J |
Jet Deflection |
Application
Tricone drill bit is one of the main tools for blast hole and well drilling, mainly used for large-scale open-pit mining, such as open-pit coal mines, iron mines, copper mines and molybdenum mines, also the non-metallic mines. With the increasing in variety of type, it’s also widely used in quarrying, foundation clearing, hydrogeological drilling, coring, tunneling in railway transportation department and shaft drilling in underground mines. The rock breakage by the tricone bit which used in mine is working with both the impact of teeth and the shear caused by slippage of the teeth, which bring high rock breaking efficiency and the low operation cost.
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.
The above represents commonly available sizes and types, we do produce other sizes and types of rock drill bits which do not appear . Please contact us for more information.
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