21.6mm Cable Bolt
- -The cable bolt is made of steel strands, and its flexible shear bearing capacity is the same as that of cables.
- -High strength: Capable of withstanding significant loads, it provides reliable support for tunnels, mining areas, etc.
- -Good stability: Effectively control the deformation of surrounding rock and enhance the stability of surrounding rock.
- -Adapt to complex geological conditions: It can function in various different geological environments, including soft rock strata, fractured rock strata, etc.
21.6mm Cable Bolt Introduction
21.6mm Cable Bolt can offer higher shear strength than the bolt and has incomparable bending capacity, so that it can better prevent or inhibit the lateral movement of rock.Cable is often used to support those areas that standard product support is not strong enough or has poor effect. When using mine cables, operations must be carried out strictly in accordance with relevant norms and standards to ensure their support effect and safety.
21.6mm Cable Bolt Mechanical Properties
| Item No. | TRCB152 | TRCB178 | TRCB189 | TRCB216 | TRCB218 |
| Diameter(mm) | 15.2 | 17.8 | 18.9 | 21.6 | 21.8 |
| Strands | 1X7 | 1X7 | 1X7 | 1X7 | 1X19 |
| Mass per meter(kg) | 1.1 | 1.5 | 1.73 | 2.24 | 2.48 |
| Cross sectional area(m㎡) | 140 | 191 | 220 | 285 | 313 |
| Steel Grade(Mpa) | 1860 | 1860 | 1860 | 1860 | 1860 |
| Tensile strength(kN) | 260(26.5T) | 335(36.2T) | 409(41.7T) | 530(54.1T) | 583(59.5T) |
Min 0.2% extension under load(kN) | 229 | 311 | 360 | 466 | 513 |
| Min.Elongation(%) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
21.6mm Cable Bolt Advantages
1.Significantly enhance the safety of mining operations and reduce the occurrence of roof accidents.
2.The installation is relatively convenient and can effectively improve the construction efficiency.
3.It has a long service life and reduces maintenance costs.
It is one of the important supporting materials for ensuring the safe production and efficient mining in mines.
21.6mm Cable Bolt Length & Package
Length:5m to 10m in pieces
Package:20-100 pcs each Square bundles or U-shaped bundles
As customer’s requirement
