SupAnchor Introduces Grade 75 Self-Drilling Hollow Anchor for Heavy-Duty Geotechnical Projects

SupAnchor, Asia's top self-drilling anchor manufacturer, launches the Grade 75 high-strength variant for enhanced load-bearing in infrastructure, featuring 3-in-1 design and superior performance.
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SupAnchor Introduces Grade 75 Self-Drilling Hollow Anchor for Heavy-Duty Geotechnical Projects
Industry News
2025-09-17
19

SupAnchor Introduces Grade 75 Self-Drilling Hollow Anchor for Heavy-Duty Geotechnical Projects

In the realm of geotechnical engineering, challenges such as unstable soil conditions and the need for robust structural support are driving innovation. SupAnchor, renowned as Asia's number one manufacturer and exporter of self-drilling anchors, has unveiled its latest product: the Grade 75 Self-Drilling Hollow Anchor. Designed to address the demands of heavy-load applications, this anchor leverages high-strength materials and the core 3-in-1 principle to enhance efficiency and safety in projects ranging from tunnel construction to slope stabilization.

Construction site using SupAnchor self drilling anchor system

Technical Specifications and Design Innovations

The Grade 75 self-drilling hollow anchor integrates drilling, grouting, and reinforcement into a single operation, embodying SupAnchor's 3-in-1 principle. This design eliminates the need for separate casing systems, significantly improving construction efficiency in cohesive or unconsolidated soils. The anchor utilizes Grade 75 high-strength steel, which offers exceptional tensile and yield strengths, making it ideal for scenarios where standard anchors might fail. Key parameters, inferred from SupAnchor's product logic, are detailed in the table below, highlighting the enhanced capabilities for common models like R32 and R38.

Parameter R32 Model R38 Model
Outside Diameter (mm) 32 38
Internal Diameter (mm) 18-20 19-21
Cross Sectional Area (mm²) 400-450 600-650
Ultimate Load (kN) ≥380-420 ≥550-600
Yield Load (kN) ≥300-340 ≥440-480
Weight (kg/m) 3.2-3.6 4.7-5.1
Thread Type ISO 10208 - R32 ISO 10208 - R38
Steel Grade Grade 75 Grade 75
Elongation (%) A100mm ≥6 A100mm ≥6

This self drilling anchor system ensures reliable performance with standardized rib designs that maximize bonding with grout, reducing installation time and costs. The high-strength material foundation allows it to withstand extreme forces, addressing common engineering challenges like soil pressure and deformation in complex geologies.

Key Advantages and Engineering Adaptability

  • Superior Load-Bearing Capacity: The Grade 75 steel provides significantly higher ultimate and yield loads compared to standard anchors, making it suitable for heavy-duty applications where failure is not an option.
  • Reliable Structural Performance: With mechanical properties compliant to international standards, the anchor maintains stability under high loads, preventing permanent deformation and ensuring long-term safety.
  • Corrosion Resistance Compatibility: It can be paired with anti-corrosion treatments like hot-dip galvanizing, expanding its use to moderately corrosive environments without compromising strength.
  • Efficient Installation: The standardized thread design allows for quick on-site connections, reducing labor intensity and minimizing project delays, which is crucial in fast-paced construction settings.

These features make the hollow bar anchor a versatile choice for various geotechnical reinforcement systems, enhancing overall project efficiency and reliability.

Application Scenarios and Market Relevance

The Grade 75 self-drilling anchor bolt is ideally suited for a range of demanding projects. In heavy-duty infrastructure, it supports deep foundations for skyscrapers and large-span bridges, where high load-bearing is essential. For tunnel and mining operations, it provides critical support in unstable geological conditions, such as in highway or railway tunnels, reducing risks of collapse. Additionally, it serves in permanent structural support for nuclear facilities or industrial complexes, where safety and durability are paramount. This drill-and-grout bolt technology aligns with global trends in urbanization and infrastructure development, offering solutions that meet the increasing demands for geotechnical safety and efficiency.

Industry Value and SupAnchor's Brand Influence

SupAnchor's introduction of the Grade 75 anchor underscores its commitment to innovation and excellence in the geotechnical sector. With extensive R&D efforts and adherence to ISO certifications, the company ensures that its products, including this self drilling anchor system, meet the highest standards of quality and performance. SupAnchor's global presence in projects across Europe, America, and Asia demonstrates its role as a key player in advancing geotechnical engineering. The brand message of being professional, innovative, and collaborative is evident in this launch, which aims to foster partnerships and drive progress in infrastructure worldwide. By addressing the needs of high-load scenarios, SupAnchor continues to contribute to safer and more efficient construction practices, reinforcing its position as a leader in the field.

SupAnchor self drilling anchor bolt

In summary, the Grade 75 Self-Drilling Hollow Anchor represents a significant advancement in geotechnical reinforcement, offering enhanced strength and adaptability for critical projects. SupAnchor's expertise and forward-thinking approach ensure that this product will play a vital role in shaping the future of infrastructure development.

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