Centralizer
The coupler is a component used to position the hollow bar in the center of the hole. Installed on the hollow bar and positioned in front of it, the coupler ensures that the thickness of the grouting layer around the hollow bar is not less than 20 mm.
It keeps the rod body of the self-drilling anchor bolt centered within the drill hole during construction, ensuring a uniform thickness of the slurry around the rod body and enhancing the anchoring effect.
parameter
| Specification | Outside Diameter (mm) | Length (mm) | Weight (kg) |
| R32 | 48 | 25 | 0.1 |
| R32 | 72 | 30 | 0.27 |
| R38 | 72 | 30 | 0.3 |
| R38 | 84 | 30 | 0.36 |
| R51 | 91 | 30 | 0.3 |
| T40 | 88 | 30 | 0.3 |
| T52 | 112 | 35 | 0.39 |
| T76 | 130 | 45 | 0.8 |
| T103 | 165 | 50 | 1.6 |
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