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Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts

    Buy cheap Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts from wholesalers
     
    Buy cheap Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts from wholesalers
    • Buy cheap Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts from wholesalers
    • Buy cheap Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts from wholesalers

    Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts

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    Brand Name : OED/OEM
    Model Number : R38N/21
    Certification : ISO 9001 2008
    Price : Negotiable
    Payment Terms : L/C, , T/T
    Supply Ability : 10000pcs per month
    Delivery Time : 15 days
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    Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts

    Hollow Anchor R38N/21 Roof Self Drilling Rock Anchors for Soil Nailing Rock Bolts


    Features:

    Outer Diameter:38mm

    Inner Diameter:21mm

    Utimate Load:500KN

    Yield load:400KN

    Weight:4.8kg/meter


    Application Area:
    Water well-drilling
    Quarry
    Foundation piling
    Geothermal drilling
    Soil nailing
    Tunnel support
    Jet grouting
    Micropile
    Mining


    Advantages and Characteristics:

    1.No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.

    2.Fast drilling and installation, because drilling, installation and grouting are in a single operation.

    3.Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.

    4.The hollow core not only serves for flushing during drilling, but also for grouting after drilling. R32 mining roof support bar.

    5.Continuous threads ensure the bars can be cut and coupled at any point, or extended.

    6.Different anchor bits are available for different ground conditions.

    7.Duplex anti-crossion prosess ,hot-dip galvanized and epoxy coating system.


    Hollow anchor bar technical data:

    SizeO.D(mm)I.D(mm)Ultimate Load(KN)Yield Load(KN)Weight(kg/meter)
    R25N-1425.014.02001502.3
    R32L-2232.022.02201802.8
    R32N-2132.021.02802302.9
    R32N-18.532.018.52802303.4
    R32S-17.532.017.53602803.5
    R32S-1532.0153602804.1
    R38N-2138.021.05004004.8
    R38N-1938.019.05004005.5
    R51L-3851.038.05504506.0
    R51L-3651.036.05504507.6
    R51N-3651.036.08006307.6
    R51N-3351.033.08006308.4
    T76N-4976.049.01600120016.5
    T76S-4576.045.01900150019
    T30-1130.011.03202603.3
    T30-1430.014.02752202.9
    T40-1640.016.06605257.1
    T40-2040.020.05404255.6
    T52-2652.026.093073010
    T73-5673.056.0103583010.8
    T73-5373.053.0116097014
    T73-4573.045.01600127017.5
    T103-78103.078.02270180025
    T103-51103.051.03660267044
    Steel gradeAcc. to EN10083-1 / EN10210-1
    Thread directionLeft hand / Right hand
    Thread standardISO 10208 / ISO1720 / Other international standards

    Product Tags:

    rock anchor bolts

      

    casing drilling bit

      
    Quality Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts for sale
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