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

Grace
September 17, 2025
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Brief: In this video, we showcase the 25mm-130mm Diameter Self Drilling Anchor Bolt, a game-changer for mining and tunneling projects. Watch as we demonstrate its unique hollow bar design, which allows simultaneous drilling, anchoring, and grouting—streamlining rock mass stabilization. See real-world applications and learn how this system enhances efficiency in underground mining and ground engineering.
Related Product Features:
  • Hollow threaded bar design enables simultaneous drilling, anchoring, and grouting in one operation.
  • Allows air and water to pass through during drilling for efficient debris removal.
  • Grout injection is possible immediately after drilling, ensuring full bolt coverage.
  • Couplings enable easy extension of bolt length for versatile applications.
  • Includes nuts and plates to provide the required tension for stability.
  • Ideal for tunneling, underground mining, and ground engineering projects.
  • Effective in loose and broken rock strata, soil nailing, and micro-piling.
  • Available in diameters from 25mm to 130mm with tensile strength of 800MPa-1200MPa.
Faqs:
  • What makes the self-drilling anchor bolt system unique?
    Its hollow bar design allows drilling, anchoring, and grouting in a single operation, significantly improving efficiency and reducing installation time.
  • Can the bolt length be extended for deeper applications?
    Yes, couplings can join hollow bars to extend the bolt length, making it adaptable for various project requirements.
  • What types of projects is this anchor bolt system best suited for?
    It is ideal for rock mass stabilization in tunneling, underground mining, ground engineering, and supporting loose or broken rock strata.
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