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The KG920BIII/KG920BHIII down the hole drill rig for open use is an improved device in compliance with national regulations on environmental protection. Equipped with the Yuchai engine (China III), the drill rig meets national standards for emissions and environment.
The KG920BHIII down the hole drill rig for open use is equipped with a dust collector, thus making operation more environment-friendly and reliable.
The tramming motor of plunger piston and four-wheel drive improve the working pressure and climbing capacity.The expanded pitch and lifting-arm hydraulic cylinder enable it to meet the requirements of limiting position use.Meanwhile,the hydraulic system is improved,thereby proving increased system flow and rotary speed.The hydraulic cylinder has been optimized,thus making it more more reliable.The guide rail is installed in an inclined way,making operations and observations easier.The thickened profile isn used for the housing;and the additional ring makes handing and lifting convenient.
Drilling diameter ：Φ90-115mm
Depth of economical drilling ：25m
Method of Feed：Oil cylinder-leaf chain
Feed stroke: 3780mm
Supporting power：Yuchai YC4R23T8-80(59KW/2400r/min)
Detail features
Diesel engine portable screw air compressor:
Kaishan LGCY-12/10
Kaishan KSCY-580/13
| Model of drill rig | KG920BIII | KG920BHIII |
| Weight of complete machine | 4200KG | 4400KG |
| Outer dimensions | 5600×2400×2300mm | 5600×2600×2300mm |
| Drilling Hardness | f=6-20 | |
| Drilling diameter | Φ90-115mm | |
| Depth of economical drilling | 25m | |
| Rotary speed | 0-110rpm | |
| Rotary torque(Max) | 1650N·m(Max) | |
| Lifting force | 18KN | |
| Method of Feed | Oil cylinder-leaf chain | |
| Feed strock | 3780mm | |
| Travelling speed | 0-2.5km/h | |
| Climbing capacity | ≤30° | |
| Ground clearance | 350mm | |
| Tilt angle of boom | Down: 135°, up: 50°, total: 185° | |
| Swing angle of boom | Left: 100°, right: 45°, total: 145° | |
| Pitch angle of drill boom | Down: 50°, up: 25°, total: 75° | |
| Swing angle of drill boom | Left: 44°, right: 45°, total: 89° | |
| Leveling angle of track | ±10° | |
| Compensation length of beam | 900mm | |
| Supporting power | Yuchai YC4R23T8-80(59KW/2400r/min) | |
| DTH hammer | M30 | |
| Drilling rod | Φ64×3m/Φ64×3m | |
| Air consumption | 9-17m3/min | |
| Maximum height of horizontal hole | 2750mm | |
| Minimum height of horizontal hole | 650mm | |
| Recommended Air Compressors | |
| Diesel engine portable screw air compressor: | Kaishan LGCY-12/10 |
| Kaishan KSCY-580/13 | |
| Kaishan LGCY-12/10 | |
| Kaishan KSCY-580/13 | |
| Note: Air compressor selection subject to hole dimameter and air hose length | |
