Self-Drilling Hollow Anchor Bar R25 R28 R32 R38 R51 for Ground Stabilization with 200-14230 kN Load Capacity
Self-drilling anchor bolts provide an efficient bolting solution for unstable ground conditions including sand, gravel, silt, clay, and soft to medium fractured rock formations. This integrated system combines drilling and grouting operations for maximum productivity.
- Hollow anchor bar
- Anchor nut and plate
- Anchor coupler
- Drill bit
- Centralizer
The system drills holes in collapsing soil or loose rock using an efficient hollow bar with drill bit. After drilling, grout is injected through the hollow bar into the surrounding cavity, creating a robust anchoring solution.
| Size | Outer Dia. (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 Dia. (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 integrating R&D, design, procurement, sales, and customer service. We specialize in geotechnical anchoring and provide comprehensive system solutions, product supply, and technical support. Our professional teams offer pre-sale technical consultation, in-sale order management, and after-sale on-site technical guidance.
We generally have no minimum order quantity.
100% strict inspection and testing for every order before packing.
1-3 days for products in stock; regular order delivery in 2-3 weeks.
- Our sales team responds within 24 hours (holidays excluded)
- Technical support available at any time
- Free replacement provided for confirmed product quality failures
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.