Dimensions | Unit |
Closed height | 950 mm |
Extended height | 1550 mm |
Thrust force | 250 kg |
Stinging force | 250 kg |
Weight excluding drill & controls | 34.4 kg |
Drill details | |
Power source – high pressure water (hydropower) | 140 – 180 bar |
Drill power | 3.6 kW / 4.5 kW @ 160 bar |
Drill steel diameter | 22 or 25 mm hex |
Hole length (max) | 1.5 m |
Drill water consumption | 0.7 ℓ/sec @ 160 bar |
Rate of penetration – 180 MPa rock strength (quartzite, norite, granite) | Nominally 80 sec for 1 m |
Hole diameter | 28 to 38 mm |
Closed loop – water recirculation | 0.5 ℓ/sec |
Drill Steel Lengths (for 900mm hole) | Collar to Tip | Tip to Tip |
Stope height 950 – 1200mm | 410 mm | 520 mm |
680 mm | 790 mm | |
950 mm | 1060 mm | |
Stope height 1200 – 1300mm | 680 mm | 790 mm |
950 mm | 1060 mm | |
Stope height 1300 - 1550mm | 680 mm | 790 mm |
950 mm | 1060 mm | |
1250 mm | 1360 mm | |
Drill steels must be forged collar with 108 mm shank |