A drill rig for the specialists.
Different rock types need different specs. The Soosan crawler drill offers it all. You can adjust the drilling parameters according to the needs such as rotation speed and drifter pressure. The angle of the crawlers of the machine can be tilted for optimum stability of the machine. The drill rig is equipped with a silent but powerful engine.
Naturally a compressor for dust flushing is provided as well as a dust collection system. The drifter is equipped with a powerful rotation device which offers a high speed rotation when required.
For the operator, an ergonomic but very comfortable air conditioned cabin is provided. A stereo radio is included. Joystick controls will make it easy for anyone to operate the drill rig.
Product Features

| Model | ST155 | ST155E | ST255H | |
| Dimensions | ||||
| Weight | 10,990 | 11500 | 17,300 | kg |
| Overall length |
8,250 | 8,850 |
10,045 | mm |
| Overall width |
2,430 | 2,430 | 2,480 |
mm |
| Overall height |
3,110 | 3,230 | 4,060 | mm |
| Performance | ||||
| Hole diameter range | 64~102 | 64~102 | 76~115 |
mm |
| Thread | T38, T45 | T38, T45 | T45, T51 | |
| Number of rods | 1+5 | 1+5 | 1+7 | |
| Rod length | 3050-(10) | 3660-(12) | 3660-(12) | mm-(ft) |
| Crawler | ||||
| Length | 2300 | 2300 | 3275 |
mm |
| Width | 310 | 310 | 350 | mm |
| Speed | 3.6 | 3.6 | 3.5 | km/hour |
| Tilt angle | +19 / -11 | +19 / -11 | +10 / -10 | º |
| Engine | ||||
| Cylinder oil flow | 160 / 2200 | 160 / 2200 | 260 / 2200 | Hp/rpm |
| Drifter | ||||
| Model | STD450 | STD450 | DF751 | |
| Weight | 228 | 228 | 230 | kg |
| Impact power | 15 | 15 | 20-30 | KW |
| Impact pressure | 130~170 | 130~170 | 140~180 | kg/cm² |
| Rotation speed | 230 | 230 | 80-180 | rpm |
| Rotation pressure | 180 | 180 | 160 | kg/cm² |
| Frequency | 3000 | 3000 | 3000 | bpm |
| Compressor | ||||
| Working pressure | 10.5 |
10.5 |
10 |
kg/cm² |
| Free air delivery | 5.7 | 5.7 | 10.5 | m³/min |
| Guide Shell | ||||
| Overall height | 7140 |
7140 | 7415 | mm |
| Feed length | 4600 | 4600 | 5755 | mm |
| Swing angle | 95/5 | 95/5 | 270 | º |
| Tilt angle | 180 | 180 | 120 | º |
| Boom | ||||
| Length | 2100 |
2100 | 1500 | mm |
| Lift angle | 60 / 40 | 60 / 40 | 32 / 30 | º |
| Swing angle | 45 / 45 | 45 / 45 | 38 | º |
| Extension | - | 1000 | 1250 | mm |