In response to growing demands for durable infrastructure in corrosive environments, SupAnchor, Asia's leading manufacturer and exporter of self-drilling anchors, has unveiled its latest innovation: the stainless steel self-drilling hollow anchor. This product addresses critical challenges in geotechnical engineering, such as saltwater exposure, chemical corrosion, and high humidity, which often compromise the integrity of traditional carbon steel anchors. By leveraging SupAnchor's expertise, this variant enhances safety and efficiency in projects ranging from coastal defenses to industrial facilities, aligning with global trends in sustainable and long-lasting construction.
The stainless steel self-drilling hollow anchor builds on SupAnchor's proven "3-in-1 principle," integrating drilling, grouting, and reinforcement into a single ribbed hollow bar. This design eliminates the need for separate casing systems, streamlining installation in unconsolidated soils and reducing project timelines. Key technical features include inherent corrosion resistance, optimized rib geometry to minimize soil disturbance, and compatibility with standard accessories, ensuring seamless integration into existing geotechnical reinforcement systems.
To illustrate its capabilities, the R32SS/15 model exemplifies the product's performance. The following table outlines its critical parameters, demonstrating how these specs address engineering challenges like load-bearing capacity and environmental durability:
| Parameter | Value |
| Outside Diameter (mm) | 32 |
| Internal Diameter (mm) | 14 |
| Cross Sectional Area (mm²) | 509 |
| Ultimate Load (kN) | ≥405 |
| Yield Load (kN) | ≥300 |
| Weight (kg/m) | 4.00 |
| Thread Type | ISO 10208 - R32 / Left or Right |
| Type of Steel | Stainless Steel |
| Elongation % | A100mm ≥6% / Agt ≥5% / A200mm ≥6% |
| Length (m) | (1) x2, x3, x4, x5, x6 |
| Anchor Nut Size | SW46/L75 |
| Anchor Coupler Size | D42/L220 |
| Anchor Plate Size | 200 x 200 x 12 |
This self drilling anchor bolt maintains mechanical properties comparable to carbon steel models, with an ultimate load of ≥405 kN and yield load of ≥300 kN, ensuring reliability under high-stress conditions. The corrosion-resistant stainless steel material prevents rust and degradation, extending service life in harsh environments. By incorporating these features, SupAnchor's hollow bar anchor system reduces maintenance costs and enhances safety, making it a preferred choice for drill-and-grout bolt applications in challenging geologies.
The stainless steel variant is tailored for diverse projects where corrosion poses a significant risk. Key application scenarios include:
These scenarios highlight the product's adaptability, as part of a comprehensive geotechnical reinforcement system that addresses modern infrastructure needs.
The introduction of this stainless steel self-drilling anchor bolt aligns with global efforts to enhance infrastructure resilience, particularly in sectors like tunneling, mining, and urban development. By providing a solution that combats corrosion, SupAnchor contributes to improved geotechnical safety, reducing the risk of anchor failure in critical projects. This innovation supports sustainable development goals by minimizing environmental impact through longer-lasting materials and reduced resource consumption.
SupAnchor's commitment to research and development is evident in this product, which adheres to international standards such as ISO 10208 and EN standards for stainless steel. As a leading soil nail system manufacturer, the company has demonstrated its innovative approach through certifications and global project collaborations, reinforcing its reputation for professionalism and collaboration. The brand's focus on delivering high-quality ground anchor bolt solutions ensures that engineers and contractors can rely on SupAnchor for cutting-edge technology that meets evolving market demands.
In summary, the stainless steel self-drilling hollow anchor from SupAnchor represents a significant advancement in geotechnical engineering, offering enhanced durability and efficiency. By integrating key features like the 3-in-1 principle and superior corrosion resistance, it sets a new benchmark for self drilling anchor systems worldwide, empowering professionals to tackle complex challenges with confidence.
A major infrastructure project uses SupAnchor's self-drilling hollow bar anchors to overcome difficult geology, demonstrating efficient geotechnical reinforcement and industry-leading innovation.
SupAnchor’s SupHulk PM series friction rock bolts deliver high yield loads and immediate support in challenging geotechnical conditions, ensuring safety in mining and tunneling.
Advanced hollow bar anchor technology from SupAnchor is enabling safe construction of a high-speed rail tunnel through the Alps, reducing installation time and improving long-term ground support.
SupAnchor introduces the Sup2000 and Sup5000 high‑performance grout pumps, delivering up to 6000 L/h at 6.0 MPa, with remote control and rugged construction for anchor mortar, injection, and back‑filling in demanding civil and mining projects.
SupAnchor's self drilling anchor system was deployed to stabilize a challenging slope on a key highway in the Alps, showcasing advanced geotechnical reinforcement in difficult geology.
