ZGYX-6500 hydraulic drilling rig Air Consumption(CBM/min): 8--12; Working Wind Pressure (Mpa) : 0.8 - 1.2; Total Weight:13.5t ZGYX-6500 All-hydraulic Drill Rig Features: ZGYX-6500 Hydraulic Crawler Rock Drill own stage,Can be used for: quarries, open mines, large-scale supplementary drilling rigs, ramps, open up the preparatory phase of the slope drilling, civil construction works.ZGYX-6500 Rock ...