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The KG420S/KG420SH down the hole drill rig for open use is an improved device in compliance with national regulations on diesel-engine emissions.The drill rig is equipped with the two independent systems,namely diesel engine and motor,capable of separate operations.
The KG420SH down the hole drill rig for open use is equipped with a dust collector,thus making operation more environment-friendly and reliable.
The folding frame track,four-wheel drive and the tramming motor of plunger piston improve the working pressure and climbing capacity.
The expanded pitch and lifting-arm hydraulic cylinder enable it to meet the requirements on limiting position.The double rotation motor increases the rotary torque and revolving speed, and the lifting hydraulic cylinder and chain are expanded to promote the lifting force and reliability.The thickened profile folder is used for the housing,thus improving its level of intensity and rigidity;and the additional ring make shandling and lifting convenient.
| Model of drill rig | KG420S | KG420SH |
| Weight of complete machine | 5800KG | 6100KG |
| Outer dimensions | 6400×2250×2700mm | 6400×2420×2700mm |
| Drilling hardness | f=6-20 | |
| Drilling diameter | Φ90-152mm | |
| Depth of economical drilling | 25m | |
| Rotary speed | 0-90rpm | |
| Rotary torque | 5000N·m | |
| Lifting force | 40KN | |
| Method of Feed | Oil cylinder-leaf chain | |
| Feed stroke | 3175mm | |
| Travelling speed | 0-2.5km/h | |
| Climbing capacity | ≤30° | |
| Ground clearance | 515mm | |
| Tilt angle of Beam | Down: 110°, up: 35°, total: 145° | |
| Swing angle of boom | Left: 91°, right: 5°, total: 96° | |
| Pitch angle of drill boom | Down: 55°, up: 15°, total: 70° | |
| Swing angle of drill boom | Left: 32°, right: 32°, total: 64° | |
| Compensation length of beam | 1220mm | |
| Supporting power | Yuchai YCDK80-T302 (58KW/2200r/min） Motor(55KW/1460r/min) |
|
| DTH hammer | K40 | |
| Drilling rod | Φ76×2m+Φ76×3m | |
| Air consumption | 13-20m3/min | |
| Maximum height of horizontal hole | 2850mm | |
| Minimum height of horizontal hole | 350mm | |
| Recommended Air Compressors | |
| Diesel engine portable screw air compressor: | Kaishan LGCY-13/13 |
| Kaishan KSCY-580/13 | |
| Kaishan LGCY-18/17 | |
| Note: Air compressor selection subject to hole dimameter and air hose length | |
