Usually speaking, the blast holes’ diameter is ranging from 80-140mm and 20m deep hole is workable for blasting. While operating, the crawler drill works with a separated air compressor or built-in one.
| Rig model | ZGYX-420 |
| Power | YUCHAI |
| Rated power | 58KW |
| Drilling depth | 30m |
| Drill pipe size | Φ76*3000MM |
| Hole range | Φ110-138mm |
| Rotation torque | 2500N.M |
| Rotation speed | 0-100RPM |
| Working pressure | 0.7-2.5MPA |
| Feed force | 20KN |
| Pull up force | 45KN |
| Feed type | CHAIN/CYLINDER |
| Tramming speed | 3KW/H |
| Gradient | 25 |
| Weight | 5200KG |
| Size | 5100*2260*2500MM |