* High Strength Mining Self Drilling Hollow Rock Anchor Drill Bolt is widely used in road / rail construction and maintenance
* Rock Bolt can be used for Tunneling & Mining
* Rural environments
* Private residences
* Special foundations
* Avalanche protection structures
Alloy Drill: made of high-quality alloy by precision technology, with strong hardness and toughness, penetrating force can drill into a variety of rock
Description |
unit |
R25 |
R32N |
R32N |
R32S |
R32SS |
R38N |
R51N |
T30N |
T40N |
T52 |
T76N |
Outer Diameter |
mm |
25 |
32 |
32 |
32 |
32 |
38 |
51 |
30 |
40 |
52 |
76 |
Inner Diameter |
mm |
14.5 |
21.5 |
20 |
20 |
18.5 |
23 |
36 |
15 |
21 |
26 |
52 |
Area |
mm2 |
255 |
331 |
369 |
369 |
407 |
548 |
892 |
331 |
803 |
1274 |
1991 |
Ultimate Tensile Load |
KN |
200 |
280 |
280 |
360 |
400 |
500 |
800 |
260 |
660 |
929 |
1660 |
Yield Load |
KN |
150 |
230 |
230 |
280 |
330 |
400 |
630 |
220 |
525 |
730 |
1200 |
Ultimate Tensile Strength |
Mpa |
784 |
846 |
758 |
976 |
983 |
912 |
897 |
785 |
822 |
729 |
837 |
Yield Strength |
Mpa |
588 |
695 |
623 |
759 |
811 |
730 |
706 |
665 |
654 |
573 |
628 |
Nominal Weight |
kg/m |
2 |
2.6 |
2.85 |
2.9 |
3.2 |
4.2 |
7 |
2.6 |
6.3 |
10 |
15 |