Self Drilling Anchor System for Tunnels - 25mm to 200mm Diameter with 200kN to 14230kN Load Capacity
Self Drilling Anchor Bolts provide an efficient bolting solution for challenging ground conditions including sand, gravel, silt, clay, and soft to medium fractured rock formations. This innovative system combines drilling and anchoring in a single operation for enhanced productivity.
The complete self-drilling anchor system includes:
- Hollow anchor bolt for simultaneous drilling and grouting
- Anchor nut and plate for secure fastening
- Anchor coupler for extension capability
- Drill bit optimized for various ground conditions
- Centralizer for proper alignment and grout distribution
| Size | Outer Diameter (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/m) |
|---|---|---|---|---|
| SER25N | 25 | 200 | 150 | 2.35 |
| SSR32L | 32 | 210 | 160 | 2.83 |
| SSR38N | 38 | 500 | 400 | 5.50 |
| SER51N | 51 | 800 | 630 | 8.20 |
| Size | Outer Diameter (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/m) |
|---|---|---|---|---|
| SST30L | 30 | 220 | 180 | 2.9 |
| SET40S | 40 | 660 | 525 | 6.8 |
| SST52N | 52 | 929 | 730 | 10.2 |
| SET73L | 73 | 1160 | 970 | 13.2 |
| SET76S | 76 | 1900 | 1500 | 19.7 |
| SET103N | 103 | 2270 | 1800 | 23.5 |
| SET111N | 111 | 3650 | 2750 | 34.5 |
| SET127L | 127 | 2400 | 1810 | 30.5 |
| SET130S | 130 | 7940 | 5250 | 78 |
| SET150S | 150 | 8400 | 5600 | 108 |
| SET200S | 200 | 14230 | 9500 | 183 |
Kelleg is a market-oriented enterprise specializing in geotechnical anchoring solutions, integrating R&D, design, procurement, sales, and customer service. Our professional teams provide comprehensive support including:
- Pre-sale technical consultation and product selection
- Efficient order management during sales process
- On-site technical guidance and after-sale services
We generally have no minimum order quantity requirements.
100% strict inspection and testing for every order before packing.
1-3 days for products in stock; regular orders delivered within 2-3 weeks.
Our sales team responds within 24 hours, technical support is available anytime, and free replacement is provided for confirmed quality-related failures.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.