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Soil Nailing Rock Bolts Hollow Anchor R32N/21 Roof Self Drilling Rock Anchors
Description:
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. rock anchor bolt R32
R Thread size:R25,R32,R38,R51,
T Thread size: T30, T40, T52, T73, T76,T103, T127, T130.
Thread standard: ISO10208/ISO1720
Features:
Outer Diameter:32mm
Inner Diameter:21mm
Utimate Load:280KN
Yield load:230KN
Weight:2.9kg/meter
Application Area:
Water well-drilling
Quarry
Foundation piling
Geothermal drilling
Soil nailing
Tunnel support
Jet grouting
Micropile
Mining
Hollow anchor bar technical data:
| 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 | 220 | 180 | 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 | 360 | 280 | 4.1 |
| R38N-21 | 38.0 | 21.0 | 500 | 400 | 4.8 |
| R38N-19 | 38.0 | 19.0 | 500 | 400 | 5.5 |
| 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 |
| T76N-49 | 76.0 | 49.0 | 1600 | 1200 | 16.5 |
| T76S-45 | 76.0 | 45.0 | 1900 | 1500 | 19 |
| T30-11 | 30.0 | 11.0 | 320 | 260 | 3.3 |
| T30-14 | 30.0 | 14.0 | 275 | 220 | 2.9 |
| T40-16 | 40.0 | 16.0 | 660 | 525 | 7.1 |
| T40-20 | 40.0 | 20.0 | 540 | 425 | 5.6 |
| T52-26 | 52.0 | 26.0 | 930 | 730 | 10 |
| T73-56 | 73.0 | 56.0 | 1035 | 830 | 10.8 |
| T73-53 | 73.0 | 53.0 | 1160 | 970 | 14 |
| T73-45 | 73.0 | 45.0 | 1600 | 1270 | 17.5 |
| T103-78 | 103.0 | 78.0 | 2270 | 1800 | 25 |
| T103-51 | 103.0 | 51.0 | 3660 | 2670 | 44 |
| Steel grade | Acc. to EN10083-1 / EN10210-1 | ||||
| Thread direction | Left hand / Right hand | ||||
| Thread standard | ISO 10208 / ISO1720 / Other international standards | ||||