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Wuxi Jinfan Drilling Equipment Co., ltd.

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    Eccentric Underreaming Bit Drilling Tool & Follow-up
    Follow-up casing drilling tool with the aid of DTH hammer, eccentric underreaming bit and follow-up casing is used to effectively drill holes in complicated formation such as loose ground, crash layer and gravel etc. These holes often need protecting hole wall.

    This drilling tool is applied to complete high pressure jet grouting holes, cement grouting holes, anchor wire holes, drainage holes, blast hole, underwater blast hole, trenchless guided drilling
    hole for underground pipe line and cable installation.

    This item won National patent

     
     

     

    2. Specifications

     

    Casingsize

    ¢89

    ¢108

    ¢127

    ¢140

    ¢146

    ¢168

    ¢178

    ¢194

    ¢245

    ¢273

    DTHhammertype

    QCW70

    QCW80

    QCW80

    QCW100

    QCW100

    QCW130

    QCW130

    QCW150

    QCW150

    QCW170

    Enlarginghole diameter

     

    ¢92

     

    ¢111

     

    ¢132

     

    ¢145

     

    ¢152

     

    ¢175

     

    ¢185

     

    ¢211

     

    ¢254

     

    ¢286

    Innerdiameterof casingshoe

     

    ¢69

     

    ¢86

     

    ¢102

     

    ¢112

     

    ¢120

     

    ¢138

     

    ¢147

     

    ¢165

     

    ¢205

     

    ¢230

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