| Description | Unit |
| Mass of boom (excluding the drill) | 60 kg |
| Length (including boom) | 2285 mm |
| Stope height | 1.5 m Max |
| Power source – high pressure water | 140 – 180 bar |
| Hand held rock drill (return line recirculation) | 3.6 kW |
| Drill steel length | 1500 mm |
| Max hole length 1200 mm | 1200 mm |
| Materials of construction | Mild steel |
| Surface finishes | Galvanized |
Stope Jig
The purpose of the Stope Jig is to drill the required pattern of holes safely, quickly and accurately in order to achieve an advance of 1 m. Furthermore to remove the operator from the danger area to a supported area behind the first line of roof support.
- The key design feature of the Stope Jig is the control of the blast hole drilling. This promotes: o Good advances, due to accurate drilling o Minimum blast damage to the existing excavation o Minimum over-break o Excavations of the desired size o Minimum fragmented rock to be cleaned o Controlled fragmentation o Smooth hanging, side and footwalls o Minimum narrowing/deterioration of the stope with time o Radius action of boom for top-middle-bottom holes
- The optimization of the drill pattern allows an optimum advance to be consistently achieved. Typically, this advance will be about 1 m depending on the straightness of the face and the cleaning cycle. This advance is larger than the average achieved by hand-held drilling and the final excavation is of a better standard
- Structurally, the Stope Jig is designed to be simple, robust and torsionally rigid. All modules can be removed and refitted with the use of tools already available in the face. The boom is made of light metal tubing and can be easily replaced if damaged
- The straight inline optimum thrust ensures best drill steel and drilling machine performance
- Water powered rock drill with return line recirculation i.e. closed loop system
