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The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc jobs, which is widely used in mining, tunneling, railway, metro construction etc projects.
Self Drilling Anchor Bolts are a bolting solution for unstable ground conditions such as sand, gravel, silt, and clay, and in soft to medium fractured rock formations. For projects facing such ground conditions, self-drilling anchors should be considered as the main productivity solution. Self-Drilling Anchors are designed for optimized installation, tailored to the project's needs.
The self-drilling anchor bolt is composed of a hollow anchor bolt, anchor nut, anchor plate, anchor coupler, drill bit, and centralizer. By drilling a hole in collapsing soil or loose rock, with an efficient hollow bar and a drill bit, and after the drilling operation injecting grout into the hollow bar and surrounding cavity, self-drilling anchors are a top productivity solution.
| Size | O.D(mm) | I.D(mm) | Ultimate Load(KN) | Yield Load(KN) | Weight(kg/meter) |
|---|---|---|---|---|---|
| R25N-14 | 25.0 | 14.0 | 200 | 150 | 2.3 |
| R32L-22 | 32.0 | 22.0 | 210 | 160 | 2.8 |
| R32N-21 | 32.0 | 21.0 | 280 | 230 | 2.9 |
| R32N-18.5 | 32.0 | 18.5 | 280 | 230 | 3.4 |
| R32S-17.5 | 32.0 | 17.5 | 360 | 280 | 3.5 |
| R32S-15 | 32.0 | 15.0 | 360 | 280 | 4.1 |
| R32SS-14 | 32.0 | 14.0 | 450 | 350 | 4.3 |
| R38N-21 | 38.0 | 21.0 | 500 | 400 | 4.8 |
| R38N-19 | 38.0 | 19.0 | 500 | 400 | 5.5 |
| R38S-18 | 38.0 | 18.0 | 560 | 460 | 6.0 |
| R51L-38 | 51.0 | 38.0 | 550 | 450 | 6.0 |
| R51L-36 | 51.0 | 36.0 | 550 | 450 | 7.6 |
| R51N-36 | 51.0 | 36.0 | 800 | 630 | 7.6 |
| R51N-33 | 51.0 | 33.0 | 800 | 630 | 8.4 |
| R51S-30 | 51.0 | 30.0 | 930 | 730 | 9.4 |
| T76N-49 | 76.0 | 49.0 | 1600 | 1200 | 16.5 |
| T76S-45 | 76.0 | 45.0 | 1300 | 1500 | 19.0 |
| T30-11 | 30.0 | 11.0 | 320 | 260 | 3.3 |
| T30-14 | 30.0 | 14.0 | 275 | 220 | 2.9 |
| T30-16 | 30.0 | 16.0 | 245 | 190 | 2.7 |
| T40-30 | 40.0 | 30.0 | 660 | 525 | 7.1 |
| T40-20 | 40.0 | 20.0 | 540 | 425 | 5.6 |
| T52-26 | 52.0 | 26.0 | 930 | 730 | 10.0 |
| T73-56 | 73.0 | 56.0 | 1035 | 830 | 10.8 |
| T73-53 | 73.0 | 53.0 | 1160 | 970 | 14.0 |
| T73-45 | 73.0 | 45.0 | 1600 | 1270 | 17.5 |
| T103-78 | 103.0 | 78.0 | 2270 | 1800 | 25.0 |
| T103-51 | 103.0 | 51.0 | 3600 | 2670 | 44.0 |
| Thread direction | Left hand / Right hand | ||||
| Thread standard | ISO 10208 / ISO1720 / Other international standards | ||||
Self drilling anchor bolt system is mainly used for tunnel and underground engineering, slope engineering, ground and foundation engineering. It can be used for pre-construction support and can effectively enhance the stability of soil and rock mass.
Self drilling anchor bolt is composed by hollow anchor bolt, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bars can be cut and lengthened by coupling on request. Customized products are also available based on your specific requirements.
We give great importance to three things: always being a reliable partner, keeping our products cost effective and providing fast solutions whenever our customer is in need.
We are constantly improving our production processes and using high-quality raw materials to produce higher quality drills. However, we understand that no drill can handle all the challenges posed by different types of rocks. When these problems arise, your biggest concern is whether you can get a quick response and reasonable solutions from suppliers.
Whether it's pre-sales, in-sales, or after-sales, our goal is to help you reduce drilling costs per meter and ensure that you can confidently make every purchase. You not only get excellent product quality but also enjoy a worry-free service experience. Let's face challenges together and build a path to success!
Comprehensive and robust supply system: As a one-stop supplier of rock drilling tools, we offer a wide range of drilling tools to meet all of your needs. Whether you require Top hammer, DTH drilling, self-drilling anchor tools or drag bits, we have everything you need to get your job done. Our comprehensive selection of products is designed to help you maximize efficiency and productivity, while ensuring your safety and satisfaction.
