Self-Drilling Anchor system
The self drilling anchoring system is composed of a hollow threaded anchor rod and matched with corresponding drill bits, which can complete drilling, anchoring, and grouting work in one go. The self drilling anchor system is mainly used in slope stability, excavation pre support, micro pile foundation and other engineering projects, and is widely used in mines, tunnels, railways, subways and other engineering projects.
Coupler: The couplers can be used to join hollow bars and extend the bolt length, it means the anchor can be
elongated with the couplers
Plate and Nut: The plate and nut are installed according to their design requirement
Drill Bit: The drill bit would be selected at the choice of ground condition
Type | Outer Dia. | Inner Dia. | Ultimate Load Capacity | Yield Load Capacity | Tensile Strength | Yield Strength |
R25N | 25mm | 14 mm | 200 KN | 150 KN | 690 N/mm2 | 520 N/mm2 |
R32N | 32 mm | 18.5 mm | 280 KN | 230 KN | 650 N/mm2 | 530 N/mm2 |
R32S | 32 mm | 15 mm | 360 KN | 280 KN | 690 N/mm2 | 540 N/mm2 |
R32L | 32 mm | 22 mm | 220 KN | 180 KN | 650 N/mm2 | 530 N/mm2 |
R38N | 38 mm | 19 mm | 500 KN | 400 KN | 650 N/mm2 | 520 N/mm2 |
R51L | 51 mm | 36 mm | 550 KN | 450 KN | 620 N/mm2 | 510 N/mm2 |
R51N | 51 mm | 33 mm | 800 KN | 630 KN | 750 N/mm2 | 590 N/mm2 |
T76N | 76 mm | 51 mm | 1600 KN | 1200 KN | 840 N/mm2 | 630 N/mm2 |
T76S | 76mm | 45 mm | 1900 KN | 1500 KN | 760 N/mm2 | 600 N/mm2 |
T30/11 | 30 mm | 11 mm | 260 KN | 260 KN | 320 N/mm2 | 560 N/mm2 |
T40/16 | 40 mm | 16 mm | 425 KN | 525 KN | 540 N/mm2 | 560 N/mm2 |
Plate | 120mmX120mmX6mm | 150mmX150mmX8mm | 200mmX200mmX10mm |
Nut | SW41 X H35 | SW46 X H45 | SW65 X H55 |
Coupler | D35 X L150 D41 X L160 | D55 X L170 | D46 X L120 |
Drill Bit | Select According To Type Of Drilling /Formation ,Steel,Alloy Etc. |
1