| Raise Diameter: |
0.6m up to 2.1m diameter |
| Pilot Hole Diameter: |
11" tri-cone bit size |
| Hydraulic Drive: |
Two speed constant horsepower motor |
| Gear Reducer Drive: |
Planetary drive train x/3.6:1 |
| Drive Speed: |
5-11-18-28 RPM |
| Drive Torque: |
78,000 ft/lbs operating |
| 188,000 ft/lbs stall |
| Pilot Drilling Thrust: |
95.5 tonne max @ 24mpa |
| Reaming Pull: |
143 tonne operating |
| 206 tonne max |
| Boring Rates: |
0-24 "/min pilot hole |
| 0-14 "/min reaming |
| Traverse Rates: |
66 "/min |
| Drill Pipe: |
10" diameter with 8 1/4" DI-22 thread 750mm length |
| DIP Angle Limit: |
Vertical to 45 flatter angles to 30 from horizontal with special supports |
| Electrical Power: |
240KVA ,1000Volt, 3phases, 50cycles |
| Water Consumption: |
52lt per second @ 100PSI (approx)
|
| Water is recycled through settling sumps |