T76 Self-Drilling Anchor Bar Left Hand Full Thread Rock Bolting
Tools
Description:
The self-drilling anchor system is an advanced geotechnical
solution designed for efficient ground reinforcement and
stabilization. The system comprises several key components,
including a hollow anchor bar, nut, bearing plate, coupler,
centralizer, and drill bit. By integrating drilling, grouting, and
anchoring into a single process, this system is particularly
effective in challenging ground conditions such as fractured rock
masses and unstable surrounding strata where conventional drilling
methods often fail.
One of the system’s major advantages is its ability to function
without the need for a casing pipe, significantly enhancing
construction efficiency. This streamlined approach reduces project
timelines and lowers overall costs while maintaining high
structural integrity. The hollow anchor bar serves a dual purpose:
it acts as a drill rod during installation and later functions as
the primary reinforcement once grouted. Additionally, the bar can
be cut to any required length and extended using couplers, making
it highly adaptable for confined or narrow workspaces where large
drilling equipment cannot operate.
Specification:
Anchor Bar |
Size | O.D(mm) | I.D(mm) | Ultimate Load(kN) | Yield Load(kN) | Weight(kg/m) |
R25N-14 | 25 | 14 | 200 | 150 | 2.3 |
R32L-22 | 32 | 22 | 210 | 160 | 2.8 |
R32N-21 | 32 | 21 | 280 | 230 | 2.9 |
R32N-18.5 | 32 | 18.5 | 280 | 230 | 3.4 |
R32S-17.5 | 32 | 17.5 | 360 | 280 | 3.5 |
R32S-15 | 32 | 15 | 360 | 280 | 4.1 |
R38N-21 | 38 | 21 | 500 | 400 | 4.8 |
R38N-19 | 38 | 19 | 500 | 400 | 5.5 |
R51L-38 | 51 | 38 | 550 | 450 | 6.0 |
R51L-36 | 51 | 36 | 550 | 450 | 7.6 |
R51N-36 | 51 | 36 | 800 | 630 | 7.6 |
R51N-33 | 51 | 33 | 800 | 630 | 8.4 |
T76N-49 | 76 | 49 | 1600 | 1200 | 16.5 |
T76S-45 | 76 | 45 | 1900 | 1500 | 19.0 |
T30-11 | 30 | 11 | 320 | 260 | 3.3 |
T30-14 | 30 | 14 | 275 | 220 | 2.9 |
T30-16 | 30 | 16 | 245 | 190 | 2.7 |
T40-16 | 40 | 16 | 660 | 525 | 7.1 |
T40-20 | 40 | 20 | 540 | 425 | 5.6 |
T52-26 | 52 | 26 | 930 | 730 | 10.0 |
T73-56 | 73 | 56 | 1035 | 830 | 10.8 |
T73-53 | 73 | 53 | 1160 | 970 | 14.0 |
T73-45 | 73 | 45 | 1600 | 1270 | 17.5 |
T103-78 | 103 | 78 | 2270 | 1800 | 25.0 |
T103-51 | 103 | 51 | 3660 | 2670 | 44.0 |
Thread direction: Left/Right hand |
Application:
The self-drilling anchor system is widely used in various
engineering fields, including:
Slope stabilization (preventing landslides and erosion)
Foundation support (enhancing load-bearing capacity)
Tunnel and underground engineering (pipe roofing, excavation
support)
Transmission tower and wind turbine foundation reinforcement
Retrofitting and strengthening existing structures (buildings,
bridges, retaining walls)
It is particularly valuable for pre-construction support, improving
the stability of soil and rock masses before excavation or
structural work begins.
Advantage:
Integrated Reinforcement
Superior Bond Strength
High-Strength Material
Time and Cost Efficiency
Minimized Waste
Package:
For additional safety, especially for international shipments,
these self-anchor drilling system tools will be packed in standard
package, ensuring superior strength and resistance to rough
handling, moisture, and other potential hazards during
long-distance transportation.
Company Profile:
Hebei Minetech Machinery Technology Co., Ltd. is a leading
manufacturer and exporter specializing in high-quality mining
drilling tools, headquartered in Hebei Province, China. With over a
decade of industry expertise, our company has established itself as
a trusted provider of premium tapered and threaded rods, chisel
bits, button bits, and a wide range of other mining drilling
equipment. With our rich experience and professional engineering
team, we focus on providing complete solutions for mining
machinery.
