SupAnchor® R Thread Self-Drilling Hollow Anchor Revolutionizes Tunneling and Ground Engineering

SupAnchor's R Thread Self-Drilling Hollow Anchor integrates drilling and grouting, offering ISO-standardized solutions for safer, faster geotechnical projects globally.
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SupAnchor® R Thread Self-Drilling Hollow Anchor Revolutionizes Tunneling and Ground Engineering
Industry News
2026-03-29
12

SupAnchor® R Thread Self-Drilling Hollow Anchor Revolutionizes Tunneling and Ground Engineering

In the face of complex geological challenges such as unconsolidated or cohesive soils, tunneling and ground engineering projects often grapple with time-consuming drilling processes and safety risks. SupAnchor, a leader in geotechnical reinforcement systems, addresses these issues with its R Thread Self-Drilling Hollow Anchor. This innovative self drilling anchor system combines drilling and grouting in one operation, significantly enhancing construction efficiency and safety on a global scale.

Construction site using SupAnchor self drilling anchor system

Technical Parameters and Engineering Solutions

The self drilling anchor bolt from SupAnchor is designed with a ribbed hollow steel bar that functions as a sacrificial drilling rod, injection tube, and reinforcing bar, adhering to the "3-in-1 principle." This design reduces labor intensity and construction time, especially in applications requiring quick installation. The R thread is standardized according to ISO 10208 and ISO 1720, ensuring reliable connections and compatibility across projects. Key technical parameters highlight the product's adaptability and strength.

ModelOutside Diameter (mm)Ultimate Load (kN)Yield Load (kN)Anti-Corrosion Options
R25N/1225≥200≥150Hot-dip galvanizing
R32S/1532≥360≥280SupCoating or stainless steel
R38/60038High capacityEnhanced yieldVarious options

These specifications enable the hollow bar anchor to withstand high loads and corrosive environments, solving challenges in unstable soil conditions. For instance, the ultimate load of up to 405 kN in models like R32SS/15 ensures robust support in demanding applications, while anti-corrosion treatments like hot-dip galvanizing, SupCoating (HDG + epoxy), or stainless steel extend service life in diverse settings from dry soils to coastal areas.

Application Scenarios and Industry Value

The self drilling anchor system is widely applied in critical infrastructure projects. Key scenarios include:

  • Tunneling Engineering: Used for tunnel face support and forepoling, this drill-and-grout bolt stabilizes surrounding rock, preventing collapses and ensuring worker safety during excavation.
  • Ground Engineering: In slope stabilization and foundation reinforcement, the geotechnical reinforcement system provides reliable anchoring to maintain ground integrity and prevent soil movement.
  • Other Geotechnical Projects: Suitable for emergency reinforcement or temporary support in soft ground, offering efficient solutions for mining and urban development.

This versatility contributes to global infrastructure growth, reducing project timelines and enhancing safety standards in industries reliant on precise anchoring.

Brand Influence and Innovation

SupAnchor has established itself as a professional and innovative player in the geotechnical sector, with over 39,000,000 meters of self drilling anchor bars installed worldwide. This track record underscores the reliability of the R thread product, backed by ISO certifications and continuous R&D efforts. The company's collaborative approach ensures tailored solutions for diverse project needs, from small-scale reinforcements to large tunneling ventures. By focusing on innovation, such as the integration of drilling and grouting, SupAnchor drives advancements in soil nail systems and ground anchor bolt manufacturing.

SupAnchor self drilling anchor bolt

In conclusion, the SupAnchor® R Thread Self-Drilling Hollow Anchor represents a significant leap in engineering technology, offering a professional, innovative, and collaborative solution for modern construction challenges. Its ability to streamline operations while ensuring durability positions it as a key asset in the evolution of safer and more efficient geotechnical projects.

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No.13 Jin Teng Road, Economy Zone, Dujiangyan Sichuan 611833, China