Overburden drilling system

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Made by EVERDIGM’ means ‘New Paradigm of Construction Equipment’

  
DURAWING is a concentric overburden system designed for Casing, specialized through hard formation into bed rock. The wing bits are enclosed on pocket area making it the most
■ Unique sliding mechanism leads to absolute workability
■ Simple parts replacement
■ Low running cost
■ Same performance in horizontal drilling
■ Same performance in horizontal drilling
■ Prevent jamming with internal air blow.
  • DURAWING

    DURAWING 90

    Rock tools > Overburden drilling system

    Major body diameter : 101mm
    Length : 411(IR3.5)mm
    System open : 125mm
    Casing size : 141.3mm/126.6mm
    Total weight(Approx.) : 13kg
    Hammer type : IR3.5

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  • DURAWING

    DURAWING 90T

    Rock tools > Overburden drilling system

    Major body diameter : 101mm
    Length : 326mm
    System open : 125mm
    Casing size : 115mm / 101.6mm
    Total weight(Approx.) : 13kg
    Hammer type : T38 / T45 / T51

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  • DURAWING

    DURAWING 115T

    Rock tools > Overburden drilling system

    Major body diameter : 125mm
    Length : 352mm
    System open : 150mm
    Casing size : 141.3mm/126.6mm
    Total weight(Approx.) : 21kg
    Hammer type : T45 / T51

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  • DURAWING

    DURAWING 129

    Rock tools > Overburden drilling system

    Major body diameter : 129mm
    Length : 516(DHD350)mm
    System open : 164mm
    Casing size : 152.4mm/132.4mm
    Total weight(Approx.) : 30kg
    Hammer type : DHD340, DHD350, MACH50, QL50, MC55

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  • DURAWING140

    DURAWING140

    Rock tools > Overburden drilling system

    Major body diameter : 152mm
    Length : 566mm
    System open : 183mm
    Casing size : 153.2mm/168.3mm
    Total weight(Approx.) : 39kg
    Hammer type : D340, MACH50, QL50, MC55

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  • DURAWING

    DURAWING 190

    Rock tools > Overburden drilling system

    Major body diameter : 201.5mm
    Length : 648mm
    System open : 237mm
    Casing size : 202.3mm/222mm
    Total weight(Approx.) : 76kg
    Hammer type : DHD360, QL60, SD60

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  • DURAWING

    DURAWING 240

    Rock tools > Overburden drilling system

    Major body diameter : 253mm
    Length : 746mm
    System open : 292mm
    Casing size : 254.5mm/273.1mm
    Total weight(Approx.) : 143kg
    Hammer type : DHD380, QL80, SD80

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  • DURAWING

    DURAWING 280

    Rock tools > Overburden drilling system

    Major body diameter : 300mm
    Length : 774mm
    System open : 340mm
    Casing size : 301.7mm/323.9mm
    Total weight(Approx.) : 213kg
    Hammer type : SD10

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  • DURAWING

    DURAWING 315

    Rock tools > Overburden drilling system

    Major body diameter : 334mm
    Length : 945mm
    System open : 373mm
    Casing size : 336.6mm / 355.6mm
    Total weight(Approx.) : 322kg
    Hammer type : SD12,QL120

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  • DURAWING

    DURAWING 365

    Rock tools > Overburden drilling system

    Major body diameter : 386.mm
    Length : 352mm
    System open : 150mm
    Casing size : 141.3mm/126.6mm
    Total weight(Approx.) : 21kg
    Hammer type : T45 / T51

    Data download          

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