Attività

Attività

  • elendf ha inviato un aggiornamento 3 mesi, 2 settimane fa

    Overburden rotary wing casing driling system
    At clockwise condition, rotary wing bit expanded to bring the casing pipe into hole. After drilling, rotary wing bit closed anticlockwise and then be lift up by the drilling machines. This kind of overburden rotary wing drilling bit is especially suitable for diameter 114-273mm.
    ModelHole dia (mm)Weight (KG)Closed dia.(mm)Pilot dia.(mm)Length (mm)Case dia(OD*ID)Spline
    MK-MRE901251690100360114*102MACH33,DHD3.5
    MK-MRE11515530115125510139*127DHD340,SD4.QL4
    MK-MRE14018852140151570168*153DHD350,SD5,QL5
    MK-MRE16521595166178690194*181DHD360,SD6,QL6
    MK-MRE190238108190203690219*206DHD360,SD6,QL6
    MK-MRE215276140215236720254*240DHD380,SD8,QL8
    MK-MRE235293160236251730273*254DHD380,SD8,QL8
    MK-MRE240293168241256730273*260DHD380,SD8,QL8
    How to order:
    Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank StyleCasing Drilling
    website:http://www.mingdthbit.com/casing-drilling/