Shandong Better Onward Machinery Co., Ltd. 
Introduction of Water Swellex Anchor Bolt
Application:
Water swelling anchor bolt is use for controlling roof falling in fully mechanized working face, and also play a role in temporary support of sinking and drifting of coal mine,metallurgy, hydro power, railway, chemical industry, Shaft engineering, railway tunnel, rock chamber oil depot, hydropower engineering, civil defense engineering.
Parameter of Water Swellex Anchor Bolt
| Description | Unit | Swellex Bolt | ||
| Pm12 | Pm16 | Pm24 | ||
| Yield load | KN | ≥100 | ≥130 | ≥200 |
| Breaking load | KN | ≥110 | ≥160 | ≥240 |
| Elongation | % | ≥10 | ≥10 | ≥10 |
| Inflation pressure | Bar | 300 | 240 | 300 |
| External diamter Ω profile | mm | 28 | 36 | 36 |
| External diameter tube | mm | 41 | 54 | 54 |
| Wall thickness | mm | 2 | 2 | 3 |
| Diameter bushing head | mm | 30/36 | 41/48 | 41/48 |
| Diameter upper bushing | mm | 28 | 38 | 38 |
| Required borehole diameter | mm | 32-39 | 43-52 | 43-52 |
| Optimum borehole diameter | mm | 35-38 | 45-51 | 45-51 |
Images of Water Swellex Anchor Bolt
