Hollow Self Drilling Anchor Left Hand Threaded Rod T30/16 T30/14 T30/11 Expansion Shell Rock Bolt
Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micropiles, it is also widely used in the railway system, metro project etc. It can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formations. The unconsolidated ground condition favor the self-drilling anchor bolt technique for fast and simple method of installation compared to the traditional method.
| Item | Inner diameter(mm) | Ultimate load strength(KN) | Yield strength(KN) | Weight(kg) |
| R25N | 14 | 200 | 150 | 2.3 |
| R32N | 21 | 280 | 230 | 3.1 |
| R32N | 18.5 | 280 | 230 | 3.4 |
| R32S | 16 | 360 | 280 | 3.6 |
| R32SS | 15 | 405 | 350 | 4.1 |
| R38N | 21 | 500 | 400 | 4.8 |
| R38N | 19 | 500 | 400 | 5.5 |
| R51L | 36 | 550 | 450 | 7 |
| R51N | 33 | 550 | 630 | 8.4 |
| T30 | 11 | 320 | 260 | 3.41 |
| T30 | 14 | 275 | 220 | 2.87 |
| T30 | 16 | 245 | 190 | 2.7 |
| T40 | 16 | 660 | 525 | 7 |
| T40 | 20 | 540 | 425 | 5.6 |
| T52 | 26 | 925 | 730 | 9.87 |
| T73 | 53 | 1160 | 970 | 14.1 |
| T73 | 56 | 1035 | 830 | 10.75 |
| T76N | 52 | 1600 | 1200 | 15 |
| T76S | 45 | 1900 | 1500 | 19.7 |
| T103 | 51 | 3660 | 2670 | 44.6 |
| T130 | 60 | 7940 | 5250 | 75 |
Features:
1, Self drilling anchor system has two performances: the one is drilling, the other one is grouting. It features a hollow bore for flushing, or simultaneous drilling and grouting.
2, Self drilling anchor system is reliable, efficient and convenient, which makes high piling output possible.
3, We can also make the Hot-Dip Galvanizing Corrosion Protection according to EN ISO1461


Hebei Minetech Machinery Technology Co, Ltd. is located in Hebei province of China. Our company is a professional production and export tapered and thread rod, chisel and button bit and other mining drilling tools enterprises. With our rich experience for over a decade and with professional engineers and sales team, we focus on providing complete solutions for mining machinery.

- Methods of Payment: T/T (Telegraphic Transfer) or Western Union or L/C at sight
- Handling time for an order: Within 10 days supplied from stock
- Shipping way:
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea. - Quality Control: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out.
- After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
c. Free replacement will provide once the failure confirmed caused by our product quality
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.