Hunan Tianying Drilling Machine Manufacturing Co., Ltd. |
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Hard Wearing Mining Drill Bits Using Specifically Designed Tungsten Carbide
Click here for catalogueTCI DRILL BIT.pdf
IADC745 Is For Drilling Hard to Very-Hard Formation
Application : For use in abrasive consolidated formations with compressive strength above 400 Mpa such as taconite, quartzite and banded iron formations
Cutting structure: These bits are characterized by closely spaced conical or spherical inserts with medium to low projection. This configuration promotes good penetration rates in hard, consolidated and very 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.
INTERRELATIONSHIP BETWEEN INSERTS REQUIREMENTS AND THE FORMATION
Formation Characteristics | Insert Spacing | Insert Properties | Penetration and Cuttings Production | Cleaning Flow Rate Requirement |
Soft | Wide | Long and sharp | High | High |
Medium | Relatively wide | Shorter and stubbier | Relatively high | Relatively high |
Hard | Close | Short and rounded | Relatively low | Relatively lower |
What is Mining Drill Bits?
Mining Drill Bit consists of three moveable conical rollers equipped with tungsten carbide inserts. The idea is the crush the rock by rolling the inserts against the rock with appropriate rotation speed and feed force. Three types of cemented carbide inserts are used for roller type bits being Chisel, Conical, and Hemispherical. Carbide inserts are distributed over the three rollers in such a manner that the entire bottom of the hole is worked on when the drill bit is rotated. Roller bits for hard and abrasive rock generally have spherical cemented carbide inserts closely spaced. Roller bits for softer rock may have the chisel and conical carbide teeth or quality milled steel teeth as the cutters. A roller bit will utilize nozzles from which the compressed air escapes to lift the cuttings from the bottom of the hole.
Advantage:
Main Products We Provide
We mainly provide Tricone Bits(Rock Drilling Bits), DTH Bits and PDC Bits for mining rock drill , water well drilling and oil well drilling.
Don’t see the bit you are looking for? Give us a call, we can customize any bit to fit your unique circumstances.
1). Tricone Bits:
a). Type: Tungsten Carbide Insert (TCI)
b). Formation Application: Soft to Hard Formation
c). Size Available: 3''~26''
d). Popular IADC Code: IADC545,645,725,735,745,825,835
2). DTH Bits:
a). Type: Tungsten Carbide Insert (TCI)
b). Formation Application: Soft to Hard Formation
c). Size Available: 2.8''~26''
d). Popular IADC Code: IADC117/137, 217/237, 317/337, 417/437, 517/537, 617/637
3). PDC Bits:
a). Type: Matrix Body and Steel Body
b). Formation Application: Soft to Hard Formation
c). Size Available: 3 1/2''~26''
d). Popular IADC Code: 121/122/123, 221/223/224, 323/324/332/333/334/343,
423/424/432/433/443
Our Company
Hunan TianYing Drilling Machine Manufacturing Co., Ltd. A professional producer, and supplier of Rock Drilling Bits, all the bits crafted from the finest material available in today's market. All of our bits 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).