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Hollow Grouting Self Drilling Anchor Bolt For Tunnel Slope Protection Project

Categories Self Drilling Anchor Bolt
Brand Name: MIROC
Model Number: R32N Hollow Grounted Anchor
Certification: GB / API
Place of Origin: China
MOQ: 100 Pieces
Price: negotiation
Payment Terms: L/C, T/T, Western Union, MoneyGram, D/A, , D/P
Supply Ability: 9000000 KG Per month
Delivery Time: 1-5 days after receiving payment and order confirmation
Packaging Details: Carton / Wooden Box or Based on Customers
Type: Anchor Bolt, Self Drilling Anchor
Material: 335 Steel
Capacity: 200KN-8000KN
Color: Based On Customers
Diameter: 25mm-130mm
Length: 1m-8m
Application: Mine support
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    • Product Details
    • Company Profile

    Hollow Grouting Self Drilling Anchor Bolt For Tunnel Slope Protection Project

    Factory direct tunnel slope protection project special self-propelled hollow anchor combined hollow grouting anchor


    Anchor bolt means a rod that transfers the structures or geotechnical load to a stable rock

    formations, it consists of rod, drill bit, coupling, plate, grouting stopper and nut. It has been

    widely used in tunnling, mining, slope stabilization, tunneldiseases treatment and roof supporting of undergroundworks. It is for loose ground(clay, sand friable etc.) Hollow anchor rod is made of seamless tube with high strength.


    Parameters and Specification:

    R25NR32NR32SR38NR51LR51NT76NT76S
    Outside Diameter (mm)2532323851517676
    Internal Diameter (mm)1419161936335245
    Ultimate Load Capacity (kN)20028036050055080016001900
    Yield Load Capacity (kN)15023028040045063012001500
    Tensile Strength, Rm (N/mm2)800800800800800800800800
    Yield Strength, Rp0.2 (N/mm2)650650650650650650650650
    Weight (Kg/m)2.33.23.65.56.58.016.019.7
    Thread Type (left-hand)ISO10208ISO1720MAI T76 Standard
    Steel GradeEN10083-1 (Alloy Structure Steel)
    Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical.

    Anchor Plate

    R25NR32NR32SR38NR51LR51NT76NT76S
    Dimention(mm)150*150200*200200*200200*200200*200250*250250*250250*250
    Thickness(mm)810121220404040
    Hole diameter(mm)3035354160608080
    Weight(KG/PC)1.433.73.68.818.51818
    Cold deformed with geometry

    Anchor Coupling

    R25NR32NR32SR38NR51LR51NT76NT76S
    Outside diameter(mm)3542425263639595
    Length(mm)120145160or190180180200200200
    Weight0.450.70.751.41.71.96.46.4
    Machined steel coupling middle stop

    Drill Bit

    R25NR32NR32SR38NR51LR51NT76NT76S
    diameter(mm)41,5151,76,9090,100,110,115,130130,150,160,180,200

    Hardened cross bit

    (EX)

    Hardened cross bit for loose to medium dense condition with small boulders.

    Tungsten cross bit

    (EXX)

    TC cross bit for soft to medium rock for mations

    Hardened button bit

    (ES)

    Hardened buuton bit for unconsolidated rock with boulders.

    Tungsten carbon button bit

    (ESS)

    Button bit with TC inserts for medium rock for formations.

    Hardened arch bit

    (EC)

    Hardened drill bit with optimized geometry for unconsoliddated soil

    with small boulders.

    Tungsten carbon arch bit

    (ECC)

    TC drill bit with optimized geometry for soft to medium rock formations.

    Hardened drop center bit

    (EY)

    Hardened cross bit for loose to medium dense ground conditions

    TC drop center bit

    (EY)

    TC drill bit for soft to medium rock formations.

    Casting clay bit

    (EW)

    Casting clay bit with optimized geometry for very soft to soft caly.
    Machined steel bit or Casring steel bit

    Anchor Nut

    R25NR32NR32SR38NR51LR51NT76NT76S
    Key size(mm)414646507575100100
    Length(mm)13545455570708080
    Weight(kg/pc)0.250.350.350.51.551.553.63.6
    Machined steel nut or casting steel nut

    T-Thread Anchor Bolt Technial Data

    Bar Type

    Outside Diameter

    (mm)

    Inside Diameter

    (mm)

    Cross section

    (mm2)

    Ultimate Load

    KN

    Yield Point

    KN

    Weight

    (kg/m)

    Thread Left/

    Right Hand

    30/1130114463202603.3Lift or right
    30/1430143952602202.9Lift or right
    30/1630163822201802.7Lift or right
    40/1640168796605257.0Lift or right
    40/2040207265394305.6Lift or right
    52/265226133792973010.0Lift or right
    73/5373531160163097012.3Lift or right
    73/5673561094141478511.1Lift or right
    73/45734522651630118017.8Lift or right

    Products picture:






    Features of hollow grounting anchor bolt

    • Particularly suitable for difficult ground conditions.

    • A high rate of installation since drilling, placing and grouting can be performed in one single

    operation.

    • Self drilling system eliminates the requirement for a cased borehole.

    • Installation with simultaneous drilling and grouting possible.

    • Easy installation in all directions, also upwards.

    • Suitable for working in limited space, height and in areas of difficult access.

    • Simple post grouting system. • Hot-dipped galvanizing for corrosion protection


    Applications in Tunneling & Ground Engineering

    • Radial bolting

    • Slope stabilization

    • Forepoling

    • Micro injection pile

    • Face stabilization

    • Temporary support anchor

    • Portal preparation

    • Soil nailing


    Product Tags:

    self drilling bolts

      

    steel anchor bolts

      
    Buy Hollow Grouting Self Drilling Anchor Bolt For Tunnel Slope Protection Project at wholesale prices
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