Specifically Designed Tungsten Carbide Rock Roller Bits For Open
Pit Mine
Click here for catalogueTCI DRILL BIT.pdf
Our Company
Hunan Tianying Drilling Machine Manufacturing Co., Ltd is a
professional Rock Drilling Bits manufacture, we supplies series of
TCI Tricone bits for drilling in soft formation to very hard
formation, available in both open-air bearing type or sealed
bearing type. Under our R&D team’s constant product
development, our Rotary Rock Drilling Bits are renowned for their
great reliability, excellent and even quality and long services
life with an expertise direct to any corner of the world.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
| 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 the best all-purpose drill bit and can be used
for many different types of rock formations, such as Soft Rock
Formations (consist mainly of sand, clay, limestone or shale),
Medium Rock Formations (calcites, dolomites, hard limestones, and
some hard shale), Hard and Abrasive Formation (hard shale,
calcites, mudstones, chert, pyrite, granite, quartzite, and cherty
lime stones).
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.
