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KG420 Hydraulic DTH Blasting Drilling Rig for Hard Rock

The KG420 down the hole drill rig for open use is an improved device in compliance with national regulations in diesel-engine emissions. Equipped with Yuchai four-cylinder engine (China 3), the drill rig meets national standards for emissions and environment. The folding frame track, four-wheel drive and tramming motor of plunger piston improve the working pressure and climbing capacity, the expanded pith and lifting-arm hydraulic cylinder enable it to meet the requirements on extreme position. The double-motor rotation 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 makes handling and lifting convenient.




KG420 drilling rig
Rock rigidityf=8-12
Diameter of holeΦ90-115mm
Depth of economical drilling25m
Rotation speed0-120r/min
Rotation torque1800N·m
Lift power40000N
Feed wayoil cylinder-leaf chain
Feed distance3980mm
Walk speed0-2.5Km/h
Ground clearance500mm
Size of drill machine6000x2150x2500
Sliding carriage pitch angleBlow 135°,up50°, total 185°
Sliding carriage swing angleLeft100°,right45°,total 145°
Sliding carriage suppling length900mm
PowerYUCHAI 4DKC4G2-80 (58KW/2200r/min)
Drill pipeΦ76x3000mm
Air consumption10-17m³/min
Max height of horizontal hole2750mm
Min height of horizontal hole350mm

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