CL351 crawler pneumatic DTH drilling rig powered by air compressor,the drilling rig is equipped with a high power pneumatic motor, the heavy-duty hydraulic drill arm and the main parts are all imported from famous international brands, which guarantee the reliable quality of the drill, especially realize much less energy consumption of rolling fraction than that of sliding fraction and make the wear of sliding framework be lower. #RockDrilling #BlastingRig #DrillingEquipment #RockBlasting