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Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Specifications
Brand Name :
MIROC
Model Number :
R23 R32 R38 R51 T76
Place of Origin :
CHINA
MOQ :
1
Price :
$60.00
Supply Ability :
3000
Delivery Time :
20-30
Material :
Stainless Steel
Fastener type :
Anchor Rod
Surface Treatment :
Plain
Head Type :
Round
Diameter :
25-103mm
Thread size :
R25, R32, R38, R51, T30, T40, T52, T76
Application :
tunneling, slope engineering, ground and foundatio
Color :
Custommized
Type :
self-drilling anchor system
Thread :
left or right
Description
Full Threaded Forged Self Drilling Anchor Bolt System
Available in sizes R23, R32, R38, R51, T76 for ore mining, tunneling, and slope stabilization applications.
Product Overview
A high-strength anchor bolt system designed to transfer structural and geotechnical loads into stable rock formations. The complete system includes hollow threaded rod, drill bit, coupling, anchor plate, grouting stopper, and nut. Manufactured from high-strength seamless steel tube for exceptional load-bearing capacity and durability.
Key Features
  • Compatible with standard Boomer, ROC, and Mustang drilling rigs
  • Ideal for difficult or unstable ground conditions
  • High installation efficiency - drilling, placing, and grouting in single operation
  • Self-drilling system eliminates need for cased borehole
  • Simultaneous drilling and grouting capability
  • Easy installation in all directions, including upward drilling
  • Suitable for limited space, low height, and hard-to-reach areas
  • Simple post-grouting system
  • Hot-dipped galvanized finish for corrosion protection
Applications in Tunneling & Ground Engineering
Application Description
Radial bolting Ground reinforcement around tunnel perimeter
Slope stabilization Preventing landslides and slope failures
Forepoling Advance support ahead of tunnel face
Micro injection pile Small-diameter grouted piles for foundation support
Face stabilization Securing tunnel face during excavation
Temporary support anchor Short-term ground retention during construction
Portal preparation Stabilizing tunnel portals before excavation
Soil nailing Reinforcing existing slopes or excavations
Installation Procedure
Step 1 - Drilling
Connect alloy drill bit to anchor rod end. Connect drill sleeve and shank adapter to other end, then attach to drilling rig. Start drilling while injecting cooling water. Use coupling sleeve to extend anchor rod length as needed.
Step 2 - Hole Preparation
Remove drill rig. Insert grouting stopper and push to bottom of hole. For excessive rock grouting tension or highly fractured rock, use anchor agent to seal the hole.
Step 3 - Grouting Connection
Connect quick grouting coupling to anchor rod end, and connect other end to grouting machine.
Step 4 - Grouting
Begin grouting and stop when grout fills completely and reaches design value. Grouting pressure determined by design parameters and machine performance.
Cement/Sand Ratio (reference): 1:0 to 1:1
Water/Cement Ratio (reference): 0.45:1 to 0.5:1
Step 5 - Final Fixing
Install anchor plate and tighten nuts to complete installation.
Technical Specifications
Model R25N R32N R32S R38N R51L R51N T76N T76S
Outside Diameter (mm) 25 32 32 38 51 51 76 76
Internal Diameter (mm) 14 19 16 19 36 33 52 45
Ultimate Load Capacity (kN) 200 280 360 500 550 800 1600 1900
Yield Load Capacity (kN) 150 230 280 400 450 630 1200 1500
Tensile Strength, Rm (N/mm²) 800 800 800 800 800 800 800 800
Yield Strength, Rp0.2 (N/mm²) 650 650 650 650 650 650 650 650
Weight (Kg/m) 2.3 3.2 3.6 5.5 6.5 8 16 19.7
Steel Grade: EN10083-1 (Alloy Structure Steel)
Compared to carbon steel, alloy structure steel offers superior anti-corrosion capacity and higher mechanical properties.
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
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Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization

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Product Detail
Brand Name :
MIROC
Model Number :
R23 R32 R38 R51 T76
Place of Origin :
CHINA
MOQ :
1
Price :
$60.00
Supply Ability :
3000
Contact Supplier
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization
Full Threaded Forged Self Drilling Anchor Bolt System R23 R32 R38 R51 T76 for Ore Mining Tunneling Slope Stabilization

KSQ Technologies (Beijing) Co. Ltd

Verified Supplier
13 Years
beijing, beijing
Since 2009
Business Type :
Manufacturer, Exporter
Main Products :
Rock Drilling Tools, DTH Drilling Tools, Button Drill Bit
Total Annual :
3000000-5000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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