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Hunan Tianying Drilling Machine Manufacturing Co., Ltd. Tricone Drill Bit
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Abrasion Proof Mining Drill Bits Run Quickly For Drilling Toughest Formation

Hunan Tianying Drilling Machine Manufacturing Co., Ltd.
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Abrasion Proof Mining Drill Bits Run Quickly For Drilling Toughest Formation

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Brand Name : Tianying

Model Number : 9 7/8" IADC745

Certification : ISO9001

Place of Origin : Hunan CHINA

MOQ : 1 Piece

Price : Negotiable

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

Bearing type : Sealed Bearing

Application : Blast Hole Drilling

Formation : hard and abrasive formations

Rotary Speed : 60-90 RMP

Machine Type : Tricone Drill Bits

Thread Type : API 6 5/8" REG

OEM : Available

Product Weight : 67kg

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Abrasion Proof Mining Drill Bits For Drilling Toughest Formation

Click here for catalogueTCI DRILL BIT.pdf

What is Mining Drill Bit consists of?

  1. A Mining Drill Bit consists of a bit body with three moveable conical rollers equipped with cemented carbide inserts.
  2. The idea is the crush the rock by rolling the inserts against the rock with appropriate rotation speed and feed force.
  3. 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.
  4. Roller bits for hard and abrasive rock generally have spherical cemented carbide inserts closely spaced.
  5. Roller bits for softer rock may have the chisel and conical carbide teeth or quality milled steel teeth as the cutters.
  6. Three types of cemented carbide inserts are used for roller type bits being Chisel, Conical, and Hemispherical.
  7. A roller bit will utilize nozzles from which the compressed air escapes to lift the cuttings from the bottom of the hole.

IADC745 Is For Drilling Hard to Very-Hard Formation

The 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.

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.

  • Compression Strength: 60,000 – 100,000 psi
  • Drilling Speeds: 50 – 90 rpm
  • Jet Circulation: All sizes
  • Weight on Bit (WOB): 4,000 – 7,500 lbs/in of bit diamete

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:

  1. Tianying rock roller bit feature an improved cutting structure, with wear and fracture resistant tungsten carbide inserts, designed to maximize penetration rates.
  2. Bearings are refined and strengthened.
  3. Rock drilling bits are carefully engineered to maximize productivity and lower total drilling costs.

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).

Abrasion Proof Mining Drill Bits Run Quickly For Drilling Toughest Formation


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