Dome Ball
Physical Dimensions
| Diameter | Height | Hole Diameter | Net Weight | Thread Size |
| mm | mm | kg | ||
| 50 | 17 | 22 | 0.20 | M20 |
| 50 | 17 | 26 | 0.12 | M24 |
| 57 | 20 | 32 | 0.18 | M30 |
General Features
- The use of a Dome Ball, with compatible Domed Plate, generally ensures better alignment of the bolt to the roof and will maximise load transfer from the bolt to the surrounding rock.
- Without the use of the Dome Ball, bending of the bolt at the collar can occur, causing local abnormal loading of the bolt and potential early failure.
- Similarly, without the use of a Dome Ball thread, binding can be a problem during installation, limiting the tensioning of the bolt.
- The Dome Ball is suitable for angles of tilt up to 18° with a compatible plate.
- Corrosion protection may be provided by hot dip galvanizing (refer to Section G).
Notes
- DSI's Mining Products Division is Quality Assured to ISO 9001:2000, Registration No.QAC/R61/0315.