Crawler Mounted Hydraulic DTH Drilling Rig Crawler Mounted DTH Drill Rig, Hydraulic Crawler Drills In contrast to the pneumatic drilling rig, energy consumption (diesel or electricity) saves about 40% to 50%. Borehole Diameter 90-165mm Site Condition CM358A crawler mounted hydraulic DTHdrilling rig is mainly applicable to the blast hole drilling process of open pit mining, quarrying, hydropower project and road constructions. Product Features CM358A crawler mounted hydraulic DTHdrilling rig adopts diesel engine (or electric motor)  and hydraulic oil pump assembly to provide power, allowing rigs to finish moving, rotating, feeding and lifting, as well as angle positioning.  During operation only the percussive DTH rigs consumes compressed air and in contrast to the conventional pneumatic rigs, CM358A saves about 40%~50% of total energy.  More information you can views here We also provide Tophammer Drilling Rigs ,Water Well Drill Rig ,Truck Mounted DTH Drilling Rig