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        • Product: 8-1/2" GS1905S
        • Register Date: 2015-05-16
        • Views : 160

          Product Parameter  
          Bit Type 8-1/2" GS1905S
          IADC Code S223
          Number of Blade 5
          Primary Cutter Size Φ19 mm
          Nozzle Qty.&Type 5NZ
          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 Spiral five blades design, the rational allocation of different functions big size cutters, so that the PDC bit get high ROP in soft and sticky soft formations. 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. The surface of the blade weld high-performance wear-resistant materials, improve bit’s wear resistance and erosion resistance.
          Application Soft formation with sticky layers and low compressive strength. Such as Clay, Marl, Lignite, Shale, Sandstone and so on.