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- Contact Person : Ms. Xing kelly
- Company Name : Luoyang Gongyan Technology Co., Ltd.
- Tel : 86-379-63501959
- Fax : 86-379-63501159
- Address : Henan,Luoyang,Room 1102,Aolin Building, Taikang Road, Wangcheng Avenue
- Country/Region : China
- Zip : 471023
self-drilling anchor
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Self-drilling anchor is made of seamless steel pipe with thick wall. It consists of anchor rod, plate,nut, coupler,grouting stopper and drill bit. It is easy to cut through various rocks with a drill bit at the anchor head.
With the continous international standard wave-shape thread, the self -drilling anchor can be used to drill holes with the help of bit. With a hign-strength couplerm any length could be available. Thus it integates anchoring, drilling and grouting as a whole.
Application Field:
1.tunnel presupport
2.roof support in underground work
3.slope and roaded reinforcement
4.base bit support as anchoring
standard | outside diameter | internal diameter average | ultimate load capatity | yield load | tensile strength | yield strength | thread type |
mm | mm | kn | kn | N/mm2 | N/mm2 | ||
R25N | 25 | 13 | 200 | 150 | 720 | 560 | ISO10208 |
R32N | 32 | 18.5 | 280 | 230 | 720 | 560 | .. |
R32S | 32 | 15 | 360 | 280 | 740 | 560 | .. |
R32L | 32 | 20 | 220 | 160 | 740 | 560 | .. |
R38N | 38 | 19 | 500 | 400 | 740 | 560 | .. |
R51L | 51 | 36 | 550 | 450 | 740 | 560 | .. |
R51N | 51 | 33 | 800 | 630 | 740 | 560 | .. |
T76N | 76 | 51 | 1600 | 1200 | 740 | 560 | ISO1720 |
T76S | 76 | 45 | 1900 | 1600 | 740 | 560 | .. |
T30/11 | 30 | 11 | 320 | 260 | 740 | 560 | .. |
T40/16 | 40 | 16 | 660 | 525 | 740 | 560 | .. |
self-drilling anchor
