Rotary Blasthole Drilling Rig, KG920BⅢ/KG920BHⅢ
Surface down-the-hole drill rig for open-pit mining
The rotary blasthole drilling rig is equipped with a 4-cylinder YUCHAI engine with low emission and less pollution. Featured with a piston motor and reinforced continuous track, this heavy machine works better in ramp climbing. Additionally, the wide swing and tilt angles make the unit suitable for various drilling applications. Our rotary blasthole drilling rig has two rotational motors that can boost feed and pull out force and reliable operation of the machine. The drilling rig slide base is arranged in a special way for easy operation and better visibility. The rotary blasthole drilling rig is featured with reinforced materials strong enough for transportation from site to site.
| Model | ||
| Total weight | 4200kg | 4400kg |
| Dimensions | 5600×2400×2300mm | 5600×2600×2300mm |
| Rock hardness | F=6-20 | |
| Hole diameter | ⌀ 90-115mm | |
| Hole depth | 25m | |
| RPM | 0-110rpm | |
| Maximum rotation torque | 1650N.m(Max) | |
| Pull out force | 18kN | |
| Feed type | Oil cylinder leaf chain | |
| Feed extension travel | 3780mm | |
| Tramming speed | 0-2.5km/h | |
| Gradeability | ≤30° | |
| Ground clearance | 350mm | |
| Tilt angle | Down:135°, up:50°, total:185° | |
| Swing angle | Left:100°, right:45°, total:145° | |
| Boom tilt angle | Down:50°, up:25°, total:75° | |
| Boom swing angle | Left:44°, right:45°, total:89° | |
| Boom extension | 900mm | |
| Engine type | YCD4R23T8-80(59kW/2400r/min)/Yuchai YCD4R23T8-80(59kW/2400r/min) | |
| DTH hammer | M30 | |
| Drilling rod | Ø64×3m | |
| Flushing air | 9-17m³/min | |
| Maximum height of horizontal holes | 2750mm | |
| Minimum height of horizontal holes | 650mm | |
- Diesel engine portable screw air compressor
Kaishan LGCY-12/10
Kaishan KSCY-580/13
Note: Air compressor selection depends on the hole diameter and air hose length.
