The SupAnchor Top Strength Grouting Hollow Steel Anchor Bar is a revolutionary anchoring system designed to meet the growing demands of the tunneling and ground engineering industries. It offers a safer, faster, and more efficient solution for various applications, especially in challenging ground conditions where traditional drilling methods with casing systems are time-consuming and inefficient.
This innovative self-drilling anchor system allows for the simultaneous execution of drilling, placement, and grouting in a single operation, significantly reducing installation time and labor costs. Its unique design makes it ideal for use in limited spaces, difficult access areas, and even when installing in upward directions.
Key Features and Advantages:
1. Compatible with standard SupAnchor Boomer, ROC, and Mustang rigs.
2. Perfect for use in difficult or unstable ground conditions.
3. High installation speed due to the one-step process of drilling, placing, and grouting.
4. Eliminates the need for cased boreholes, simplifying the installation process.
5. Enables drilling and grouting simultaneously for greater efficiency.
6. Easy to install in all directions, including upwards.
7. Suitable for confined spaces and hard-to-reach areas.
8. Simple post-grouting system for enhanced stability.
9. Hot-dipped galvanization provides long-term corrosion protection.
Applications include tunneling, ground engineering, radial bolting, slope stabilization, forepoling, micro-injection piles, face stabilization, temporary support anchors, portal preparation, and soil nailing.
Specifications:
| 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 underground construction, slope stabilization, or foundation support, the SupAnchor system delivers reliable performance, durability, and cost-effectiveness. With its advanced design and versatility, it’s an essential tool for modern engineering projects.
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