The KG9 down the hold drill rig is designed for open pit mines and quarries for drilling holes with a diameter of Φ105－152mm in vertical, inclined, and horizontal orientation. This equipment is primarily applied for open-pit mines, stonework blast holes, and pre-splitting holes. Th drill rig is outfitted with an automatic unloading road system and a lubricating module drill rod and can be operated by a single worker. With hydraulic pilot operation, it is equipped with an anti-jamming system and optional drilling angle and depth indication functions to maximize drilling quality. The efficient dust-collecting system, spacious cab, high powered air-conditioner and quality stereo system provide comfortable and safe conditions for the operator for long work days and nights
Drilling diameter: Φ105-152mm
Depth of economical drilling: 32m
Feed stroke: 4090mm
Method of Feed: Oil cylinder-leaf chain
Supporting power: YUCHAI YC6B125-K20(92KW)
Technical Parameters
| Drilling method | High air-pressure submerged drilling |
| Drilling hardness | f=6-20 |
| Drilling diameter | 105-152 mm |
| Working pressure | 1.0-2.5 Mpa |
| Air consumption | 15-21 m³/min |
| Depth of automatic extension rod | 32 m |
| Travelling speed | 2.5 Km/h |
| Stand-alone climbing capacity | 30° |
| Ground clearance | 430 mm |
| Power of complete machine | 92 Kw |
| Model of diesel engine | YC6B125-K20 |
| Outer dimensions (L×W×H) | 9000×2500×3100 mm |
| Weight | 10000 kg |
| Rotation speed of gyrator | 0-100 r/min |
| Rotary torque | 3500 N*m |
| Maximum push-pull force | 20000 N |
| Tilt angle of beam | 114° |
| Pitch of drill boom | -20 °～ +47° |
| Lateral horizontal swing angle of carriage | -35°～ +95° |
| Swing angle of drill boom | -5°～ +45° |
| Leveling angle of frame | -10°～ +10° |
| One-time advance length | 4490 mm |
| Compensation length | 1353 mm |
| DTH Hammer | K4、K5 |
| Drilling rod | Φ89×4000 mm |
| Method of dust collecting | Dry type (cyclonic laminar flow + pre-separator) |
| Anti-jamming device | Automatic control anti-sticking system |
| Jamming device | Hydraulic jamming device |
| Unloading method of drill rod | Disc-type unloading rod system |
| Cab | ROPS&FOPS with air-conditioner |
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