Tungsten Carbide Insert Mining Drill Bits Offers An Expansive Range Of Dimensions



Our Company

Hunan TianYing Drilling Machine Manufacturing Co., Ltd. is a professional manufactory of Rock Drilling Bits. Our drilling bits manufacture are based on the extensive research and development in the field of mining. All the Rock Drilling Bits using the finest raw materials available, including Premium Steel and Tungsten Carbide. We ensure that our worldwide clients have quick access to our service, manufacturing and marketing expertise. Our vision is to become the industry's performance leader in tools that withstand the toughest rock drilling demands. That's why our products exceed industry specifications for performance and safety. When you work with TianYing, we are committed to your productivity and efficiency.
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).


Our Products

The medium formation TCI tricone bits features aggressive chisel tungsten carbide inserts on the heel rows and inner rows. This design provides a fast drilling rate and added cutting structure durability in medium to medium hard for mations. The HSN rubber O-ring provides adequate sealing for bearing durability.

We took the following factors into consideration when designing

1. Journal Angle - Journal angle determines the overall aggressiveness of the bottom hole profile. Soft formation rock bits employ a 33 degree angle while hard formation rock bits employ a 36 degree angle.
2. Cone Offset - Increased rate of penetration (ROP) can be achieved by offsetting the ceter line of the cone away from the center of bit rotation. This produces more on-bottom action. The higher the offset the greater the scraping and gouging action on bottom.
3. Cone Angle –Oversize angle controls the diameter of the cone at gage.

Soft to medium formation tricones employ a more round cone profile and a larger cone angle. This creates a bottom hole action of gouging and scraping.
Hard formation bits employ a smaller cone angle and a flatter cone profile. This creates a bottom hole action of crushing.

1. Oversize Angle - Oversize angle controls the diameter of the cone at gage.

Soft formation tricones employ a higher oversize angle; thus, escalating gage action and cone diameter.
Hard formation bits have very little or no oversize angle. This reduces the action on gage and also reaming of gage inserts.

1. Intermesh - Intermesh is the distance the top of a tooth or button bit insert extends into the grooves of adjacent cones. This spacing allows for cleaning of formation and prevents packing.
2. Projection and Pitch - Projection is the height of the button or tooth. Pitch is the space between teeth or inserts.

How to read an IADC Code properly

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.


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.


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

    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 famous heavy industrial base of China. covering the land area of more than 800 acres with total asset of RMB130 Million and over 100 staffs.

    we have advanced full-equipped tricone bits and rockdrilling tillsmanufacturing workshops, high frequency welding workshop.heat treatment workship. mould equipment making workshop and the various departments of measurement. quality control. technology R&D center. the tatal main equipments amount to over 300 sets andthe annual production volume for tricone bits is 5000pcs for other rock drilling tools is over 1400000 pieces.

    we have partners all over the world like America. Europe.Australia.South Africa. UAE. Brazil and so on.

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