Hunan Tianying Drilling Machine Manufacturing Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 1000 Pcs Per Month |
| Delivery Time | 10-15 Working Days |
| Packaging Details | Wooden Case , Signle Item Per Case |
| Color | As your require |
| Application | medium hard and abrasive formation |
| Machine type | Drilling Tool |
| Bearing type | Sealed Bearing |
| Material | 15MnNi4Mo steel，Tungsten carbide and Tomlin grease |
| Tooth | Tungsten carbide insert |
| Brand Name | Tianying |
| Model Number | IADC 435 |
| Certification | ISO9001 |
| Place of Origin | Hunan CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1000 Pcs Per Month |
| Delivery Time | 10-15 Working Days | Packaging Details | Wooden Case , Signle Item Per Case |
| Color | As your require | Application | medium hard and abrasive formation |
| Machine type | Drilling Tool | Bearing type | Sealed Bearing |
| Material | 15MnNi4Mo steel，Tungsten carbide and Tomlin grease | Tooth | Tungsten carbide insert |
| Brand Name | Tianying | Model Number | IADC 435 |
| Certification | ISO9001 | Place of Origin | Hunan CHINA |
| High Light | dth button bits ，rotary blast hole bits | ||
Roller Bearing Blast Hole Drill Bits Ensure The Highest Possible Rate Of Penetration
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 properly
| 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 |
What is Blast Hole Drill Bits?
In the mining industrial, blast hole drilling is very important to achieving the required product or outcome. Drilling suitable holes allowing explosive charges to be placed down the holes. And then to blast large areas making them more manageable and easier to remove.
Bits thread are manufactured according to API standards.
| BIT SIZE | BIT WEIGHT | THREAD TYPE(API) |
| 7 7/8” (200mm) | 36KG | 4 1/2” REG |
| 9 7/8” (251mm) | 67KG | 6 5/8” REG |
| 11” (280mm) | 76KG | 6 5/8” REG |
| 6 5/8” (311mm) | 100KG | 6 5/8” REG |
Advantage:advantage of tci drill bit.pdf
Tianying's Best Service
Come rain or shine, on work days or holidays, at home or abroad, our services are there when you need them. We believe you will be entirely satisfied with our working attitude and diligence.
Tianying promises that once you choose us, our company is there ready to respond with the first arrival solution any time, anywhere.
Don’t see the bit you are looking for? Give us a call, we can customize any bit to fit your unique circumstances.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1958
Total Annual:
8000000-10000000
Employee Number:
100~200
Ecer Certification：
Site Member
Professional. Duarable, Efficient, TIANYING TCI Tricone Bit! Hunan Tianying Drilling Machine Manufacturing Co., Ltd.is one state-appointed factory of mining tools especially for tricone bit. we are established in 1958 and located at Zhuzhou city of Hunan provice. one fam... Professional. Duarable, Efficient, TIANYING TCI Tricone Bit! Hunan Tianying Drilling Machine Manufacturing Co., Ltd.is one state-appointed factory of mining tools especially for tricone bit. we are established in 1958 and located at Zhuzhou city of Hunan provice. one fam...
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