• xiaoyu129 posted an update 3 months, 3 weeks ago

    SDA bolt sleeves
    Our sleeves have a physical stop in the middle of the couplings to stop the thread and the hollow bar.
    Self-drilling bolt sleeves can extend the length of hollow bar, the length can be changed by your request. It was widely used in the SDA system, it was suitable for anchoring in broken geological condition and narrow space, which has achieved perfect effect.
    Thread type:
    R25,R32,R38,R51,T30,T40,T52,T73,T76,T103,T130 etc

    Coupling
    Type Outer diameter(mm) Length(mm) Weight
    R25 36 150 0.6
    R32L 42 145 0.72
    R32N 42 160 0.8
    R32S. R32SS 42 160 0.96
    R38 50 180 1.8
    R51L 63 140 1.26
    R51N 63 200 1.9
    T30 38 105 0.42
    T40-20mm 54 140 1.15
    T40-16mm 57 140 1.54
    T52 70 160 2.3
    T73 95 235 4.3
    T76N 95 200 4.3
    T76S 97 220 5.35
    T103 123 255 7.45

    10-20 days after confirming order, detail delivery date should be decided according to production season and order quantity.

    Coupling manufacturers
    website:http://www.yihuidrilling.com/coupling/