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 |
| Thread Type | API 4 1/2" REG ，API 6 5/8" REG |
| Processing Type | Forging |
| Bearing type | Sealed Bearing |
| Machine Type | Mining rotary drill bits |
| Material | Antiwear Cemented Carbide and Tomlin grease |
| Size | 7 7/8 inch or 200mm |
| Brand Name | Tianying |
| Model Number | IADC 725 |
| Certification | ISO 9001 |
| Place of Origin | 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 |
| Thread Type | API 4 1/2" REG ，API 6 5/8" REG | Processing Type | Forging |
| Bearing type | Sealed Bearing | Machine Type | Mining rotary drill bits |
| Material | Antiwear Cemented Carbide and Tomlin grease | Size | 7 7/8 inch or 200mm |
| Brand Name | Tianying | Model Number | IADC 725 |
| Certification | ISO 9001 | Place of Origin | CHINA |
| High Light | tri cone rock bit ，tricone drilling bits | ||
A Full Range Of Sizes Tricone Rock Bit Using Antifriction Steel For Blast Hole Drilling
Click here for catalogueTCI DRILL BIT.pdf
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.
Advantage:
High quality----strictly act according to the ISO9001 standard, and all bits are manufactured according to strict standards, set forth by the American Petroleum Institute (API).
Propessional Equipment---- No matter raw material selection, or processing technology are selected is the industry leading technical equipment.
16 Years History---- From 2003 to 2019, customers are located all over the world and win a good reputation.
Common fault analysis of Tricone bits
| Common fault | Fault description | Method |
| Early wear of the shirttail | Abrasive formations, bent drill rod, seriously worn stabilizer and insufficient air for drilling rate attained etc, are all the causes which result in premature shirttail wear. In this case, the configuration of cones is good and the amount of inserts wear is small. Shairttail wear can also allow the big roller bearings to fall out resulting in bit failure. | The designer should strength the shirttail with certain measures to increase the wear-resistance capacity of shirttails. |
| Early wear and loose movement of the bearing | Excessive weight on bit, insufficent air to clean the hole and/or cool the bearing, leads to bearings overheating due to improper cooling and poor cuttings removal can shorten the service life of bit bearing. | Reduce bit pressure and increase air pressure |
| Cutting structure failure | Excessive WOB or Rotation speed; Wrong bit selection; Cuttings blowing in bad conditions caused repeating crushing. | Correctly select operating parameters and rotary types for specific working conditions |
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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