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The self-drilling anchor anchor coupler is a crucial component of the drilling system, used to connect anchor bars and reach the desired drilling depth. Made from seamless steel pipes, the coupling is processed with R-thread or T-thread types and undergoes heat treatment to ensure mechanical strength that surpasses that of the anchor bars.
Functionally, the anchor coupler is responsible for transmitting torque and tensile force. During operation, the coupling transfers power to the various components of the drilling system, allowing them to work in unison. It is designed to endure high loads and frequent vibrations without loosening, cracking, or failing, ensuring reliable performance in demanding conditions.
A properly designed anchor coupler can minimize energy loss, thereby enhancing the efficiency of the drilling system. Additionally, it allows for length adjustments to accommodate varying depths and working conditions during construction.
| Thread Size | Length (mm) | Outer Diameter (mm) | Unit Weight (kg) |
| R25 | 150 | 36 | 0.6 |
| R32 | 145 | 42 | 0.7 |
| 160 | 42 | 0.8 | |
| 190 | 42 | 0.9 | |
| R38 | 180 | 51 | 1.4 |
| 220 | 51 | 1.7 | |
| R51 | 140 | 63 | 1.4 |
| 200 | 63 | 2 | |
| T76 | 220 | 95 | 4.7 |
| T30 | 105 | 38 | 0.42 |
| T40 | 140 | 54 | 1.1 |
| 140 | 57 | 1.3 | |
| T52 | 160 | 70 | 2.4 |
| T73 | 235 | 89 | 3.7 |
| 245 | 95 | 5.7 | |
| T103 | 255 | 123 | 7.5 |
| 290 | 132 | 12.5 | |
| T127 | 255 | 139 | 7.5 |
| Steel grade | As per request | ||
| Thread direction | Left hand / Right hand | ||
| Thread standard | ISO 10208 / ISO 1720 / other international standards | ||
| Hardness (HRC) | HRC25-HRC30 | ||
| Features | All are designed with middle stop, O rings are available as per request. | ||
The self-drilling anchor system is an advanced anchoring solution on the market. It provides stability in soil or rock formations and is a key anchoring system in rock reinforcement projects, ensuring safety and structural rigidity.
Our self-drilling anchor is equipped with different parts. At the drilling end is the anchor bit, which creates the borehole while facilitating grouting. The anchor bolt, serves as the primary support structure. The anchor coupler extends the bolt's length when necessary, while the anchor plate distributes surface loads to ensure stability. Finally, the anchor nut locks the system securely in place, completing the setup for optimal performance.
