Crawler Type KT20 Down The Hole Rock Drilling Rig Equipment
KT20 down the hole rock drill rig / blast hole drill rig is completely self-contained, with onboard compressors and efficient dust suppression. They are highly productive and very reliable, with low life-cycle costs.
Specifications of KT20 rock drill rig:
| Model No | KT20 | |
| Rock Rigidity | f=6-20 | |
| Drilling Hole Diameter | 135-190 mm | |
| Economic Drill depth | 35m | |
| Traveling Speed | 0-3.0 km/h | |
| Rotation Speed | 0-118 r/min | |
| Rotation Torque | 4100N·m | |
| Max. Feed Force | 65000 N | |
| Feed Stroke | 4500 mm | |
| Climb Capacity | 25º | |
| Ground Clearance | 430 mm | |
| Weight | 23000 kgs | |
| Dimension | 11110*2716*3200 mm | |
| Guide Tilt | 125° | |
| Guide Swing | 97°right, 33° left | |
| Compensation Stroke | 1200mm | |
| Boom Lift | 42° up, 20° down | |
| Boom Swing | 42° right, 15° left | |
| Engine Model | Caterpillar C11 | |
| Power | 287KW | |
| Working Pressure | 20 Bar | |
| Screw Compressor Capacity | 22m³/min | |
| Crawler Balance Angle | 10° up, 10° down | |
| Components | Standard | Option |
| Drill Hammer | HD55A | HD65A |
| Drill Rod | Φ102× 5000mm | Φ102×5000mm |
| Drill Bit | Φ140 mm |
Φ135-190mm |