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        • Product: 8-3/4" GSD1635T
        • Register Date: 2015-03-23
        • Views : 244

          Product Parameter  
          Bit Type 8-3/4” GSD1635T
          IADC Code S423
          Number of Blade 5
          Primary Cutter Size Φ16 mm
          Nozzle Qty.&Type 7NZ
          Gauge Length 70 mm
          Connection 4-1/2” API REG
          Make up Torque 24.1~26.5 KN·m
          Operating Parameters  
          Rotary Speed 60~260 rpm
          Weight on Bit 20~100 KN
          Max. WOB 130 KN
          Flow Rate 22~35 lps
          Features Five curved blades using arc-type, rational allocation of high quality medium size PDC cutters. The maximum local cutters equivalent density, improve the offensive and abrasive resistance of the bit. High quality arc PDC cutter gauge, reduce the abrasion of rock on the bit’s body, increase wear resistance and stability of the drill gauge. Brazing high wear resistance PDC cutters at specific angle, when resistance during trip-out and back reaming in easy shrinking interval, it can effectively remove the obstacles, protect the bit body from harm. The surface of the blade weld high-performance wear-resistant materials, improve bit’s wear resistance and erosion resistance.
          Application Medium hard formation with high compressive strength and abrasive, such as Limestone, Anhydrite, Dolomite and so on.