351 Crawler Pneumatic Drilling rig
351 Crawler pneumatic drill rig (down-hole drill rig with high blast pressure) totally utilizes compressed air as its power. It is equipped with pneumatic motor with high power, the heavy-duty hydraulic drill arm and the key parts are all imported, which guarantee the reliable quality of the drill, especially realize much less energy consumption of rolling fraction than that of sliding fraction and make the wear of sliding framework be lower.
351 crawler pneumatic drill rig is mainly used in stonework drilling, such as water and electricity project, exploitation of open mine and road construction
| Main Technical Parameters | |
| Working air pressure | 1.05-2.46MPa |
| Drilling diameter | Φ105-Φ165mm |
| The highest drilling level | 3.38m |
| Grade ability | 35° |
| Length of propulsion for once | 3.66m |
| Speed of turn-around machine | 0-72rpm |
| Propulsion | 13620N |
| Elevation angle of sliding framework (degree) | 180 |
| Swing angle of sliding framework (degree) | 50 toward left and 35 toward right |
| Swing angle of drill arm (degree) | 45 toward right and left |
| Elevation angle of drill arm (degree) | 60 horizontally up and 19 down |
| Moving motor power | 8.8*2kw |
| Propulsion motor power | 3.36kw |
| Turn-around motor power | 18.34kw |
| Turn-around torque | 2510N.M |
| Outer size (length*width*height) | 2780*2210*1470mm |
| Weight | 5000kg |
| Air consumption | 17-21 m³/min |
| Common impacter model | DH4 QL40 DHD340 DHD340ADHD 350Q DHD360 |
| Dust removal mode | Wet type or dry type (equipped additionally) |
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