| Raise Diameter: |
Nominal 4.0m [13ft] |
| Depending on rock conditions 2.4m-6.0m [8-18ft] |
| Raise Length: |
Nominal 920m [3020ft] |
| Depending on diamter and rock 1100 [3610ft] |
| Drill Pipe: |
Diameter 330mm [13"] |
| Shoulder to shoulder length 1524mm [60"] |
| Thread, DI 42257mm [10 1/8"] |
| Pilot Hole Diameter: |
381mm [15"] |
| Hydraulic Drive: |
1 ea CA 210-180 / CA 70 tandem drive |
| Gear Drive: |
2 - stage planetary gear reduction |
| High ratio 4.143:1 |
| Low ratio 8.029:1 |
| Installed Power: |
Power pack - rotation and thrust 2x250kw [670HP] |
| Dimension: height 1.7m x width 2.0m x length 3.5m |
| Rotation Speeds: |
Piloting speeds (nominal) - variable 0-40rpm |
| Reaming speeds (@ 450kNM) - variable 0-8rpm |
| Torque Rating: |
Piloting at 200 bar (2900psi) 75,000Nm [55,500ft/lbs] |
| Reaming at 230 bar (3335psi) 450,000Nm [332,000ft/lbs] |
| Reaming Thrust: |
8923kN @ 338bar (max) |
| 2,000,000lbs @ 4900psi |
| Feed Rates: |
Pilot drilling 250mm/min [10"/min] |
| Reaming 175mm/min [7"/min] |
| Maximum Traverse Rates: |
Up 33mm/sec [1.3"/sec] |
| Down 50mm/sec [2.0"/sec] |
| Dip Adjustment: |
90-60 degrees from horizontal by turnbuckle |
| Drilling Fluid: |
Bailing with water only 560lt/min (150GPM) @ 5-7 bar (min pilot drilling) |
| Derrick Weight: |
25.4tonne [56,000lbs] approx |
| Derrick Dimension: |
[height x width x length] |
| Retracted 4.0m x 2.2m x 2.5m |
| Extended 5.7m x 2.2m x 2.5m |
| Note: maximum stated reaming torque is based on machine capability. Actual maximum torque applied through the system depends on the drill pipe/thread lube combination. |