Reliability And Durable Rotary Rock Bit For Toughest Formation Drilling

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Features of IADC7** series

Hard to Very-Hard Formation

Application : 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

Quality Control

In manufacturing, each process goes through an extensive and painstaking testing ,
quality control is a process that ensures customers receive products free from defects and meet their needs.
1, Raw material selection:To make a good drill bit, it is necessary to select the best material and gatekeeping the quality of the material. We purchase the high-quality steel and strictly control the material composition and size, it main includes the detection of the shape, diameter, reamed diameter, length composition, and flaw of the raw material, Tungsten Carbide and Grease are also the best raw materials on the market.Besides, we marked every different piece of materials before transferred to the warehouse.
2, In strict accordance with the ISO9001 international standards for production.
Carefully control every step of the production, complete each of the production process,
the production process is including blanking, forging, rough turning, heat treatment,fine turning, quenching, assembling, welding, painting, then storage.
Each working process was full inspected, after the qualification, then move to next working process, which to ensure the 100% qualified rate.
3, Sampling observation, numbered, packing and arrange the shipment.


CUTTING SELECTION GUIDE

Don’t see the bit you are looking for? Give us a call, we can customize any bit to fit your unique circumstances.

    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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