Antiwear High Efficient Roller Cone Drill Bits Fast Drilling Rate Long Bearing Life

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IADC7** Series Apply For Hard to Very-Hard Formation

For use in moderately abrasive consolidated formations with compressive strength ranging between 140 – 485 Mpa such as hard limestone, quartzite, granodiorite, and medium grade metamorphic 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

CUTTING SELECTION GUIDE

Advantage:

1. Suitable for soft to extremely hard and abrasive formations.
2. High temperature heat treatment forged alloy steel.
3. Specifically designed tungsten carbide insert.
4. Advanced synthetic grease improves bearing lubrication and reliability.
5. Sealed bearing can improves bearing life for longer drilling time and more footage drilled.
6. Tungsten carbide pucks added on the shirttail to protect against abrasive applications.
7. Thread protected to prevent it damaged during transportation.

The above represents commonly available sizes and types, we do produce other sizes and types of rock drill bits which do not appear on . Please contact us for more information.

    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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