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The SupAnchor Self-Drilling Anchor is a revolutionary anchoring system designed to meet the growing demands of the tunneling and ground engineering industries for safer, more efficient, and faster construction processes. This advanced system eliminates the need for time-consuming casing drilling in unconsolidated or cohesive soils, making it an ideal solution for challenging ground conditions.
One of the key advantages of the SupAnchor system is its ability to perform drilling, placing, and grouting in a single operation, significantly reducing installation time and labor costs. Its self-drilling feature removes the necessity for cased boreholes, allowing for greater flexibility and efficiency on site. The system can be installed in all directions, including upwards, which is particularly beneficial in confined spaces or difficult-to-access areas.
The SupAnchor is compatible with a wide range of standard rigs such as Boomer, ROC, and Mustang, ensuring seamless integration into existing workflows. It also features a simple post-grouting system, enhancing its versatility and ease of use. Additionally, hot-dipped galvanization provides excellent corrosion protection, extending the service life of the anchor in harsh environments.
Applications of the SupAnchor include radial bolting, slope stabilization, forepoling, micro-injection piles, face stabilization, temporary support anchors, portal preparation, and soil nailing. Whether used in tunnels, underground structures, or slope reinforcement projects, the SupAnchor delivers reliable performance and high load capacity.
Below are the detailed specifications of various SupAnchor models:
| Specification | R25N | R32L | R32N | R32/18.5 | R32S | R32SS | R38N | R38/19 | R51L | R51N | T76N | T76S |
|--------------|------|------|------|----------|------|--------|------|--------|------|------|-------|-------|
| Outside diameter (mm) | 25 | 32 | 32 | 32 | 32 | 32 | 38 | 38 | 51 | 51 | 76 | 76 |
| Internal diameter, average (mm) | 14 | 22 | 21 | 18.5 | 17 | 15.5 | 21 | 19 | 36 | 33 | 52 | 45 |
| External diameter, effective (mm) | 22.5 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 35.7 | 35.7 | 47.8 | 47.8 | 71 | 71 |
| Ultimate load capacity (kN) | 200 | 260 | 280 | 280 | 360 | 405 | 500 | 500 | 550 | 800 | 1600 | 1900 |
| Yield load capacity (kN) | 150 | 200 | 230 | 230 | 280 | 350 | 400 | 400 | 450 | 630 | 1200 | 1500 |
| Tensile strength, Rm (N/mm²) | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Yield strength, Rp0.2 (N/mm²) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Weight (kg/m) | 2.3 | 2.8 | 2.9 | 3.4 | 3.4 | 3.6 | 4.8 | 5.5 | 6.0 | 7.6 | 16.5 | 19.0 |
| Thread type (left-hand) | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 10208 | ISO 1720 | ISO 1720 | MAI T76 standard | MAI T76 standard |
| Steel grade | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 | EN 10083-1 |
Whether you're working on a tunnel, mining project, or slope stabilization, the SupAnchor Self-Drilling Anchor offers a dependable, cost-effective, and efficient solution that enhances productivity and safety. Its robust design, combined with a wide range of sizes and applications, makes it the preferred choice for modern ground engineering challenges.