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25mm-130mm Diameter Self Drilling Anchor Bolt Hollow Anchor Bar Anchor Rods for Mining

Self Drilling Anchor
September 17, 2025
Category Connection: Self Drilling Anchor
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MTH self-drilling anchor bolts,25mm-130mm, simplify mining support!These ISO 9001 certified rods offer easy install, high efficiency,and cost-effectiveness.Ideal for rock stabilization in tunneling and mining,our R25-T76 thread hollow bars boast 800-1200MPa tensile strength.Welcome to visit our website!
Tags:
#Customized Self Drilling Anchor Bolt #280kN R32 Self Drilling Anchor #T76 Rock Bolting Tools
Brief: Discover the 25mm-130mm Diameter Self Drilling Anchor Bolt Hollow Anchor Bar Anchor Rods for Mining. These hollow threaded bars with attached drill bits enable drilling, anchoring, and grouting in one operation. Ideal for rock mass stabilization in tunneling, mining, and ground engineering.
Related Product Features:
  • Self-drilling hollow bar anchor system for efficient rock mass stabilization.
  • Combines drilling, anchoring, and grouting in a single operation.
  • Hollow threaded bar allows air, water, and grout passage for debris removal and complete coverage.
  • Couplings enable bolt length extension for versatile applications.
  • Nuts and plates provide required tension for secure anchoring.
  • Perfect for loose and broken rock strata with difficult drilling conditions.
  • Widely used in tunneling, underground mining, and ground engineering.
  • Optimal solution for soil nailing, lock bolting, and micro-piling.
Faqs:
  • What is the diameter range of these self-drilling anchor bolts?
    The diameter range is from 25mm to 130mm, suitable for various mining and engineering applications.
  • How does the hollow bar system work during drilling?
    The hollow bar allows air and water to pass through during drilling to remove debris, followed by grout injection for complete bolt coverage.
  • Where are these anchor rods commonly used?
    They are widely used in tunneling, underground mining, and ground engineering for rock mass stabilization, especially in loose and broken rock strata.
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