During tunnel excavation, air compressors not only provide drilling power for rock-drilling rigs but also drive ventilation systems to remove blast dust and supply air to shotcrete equipment for initial support. Our electric or diesel-powered screw compressors feature a compact design and small footprint, allowing them to be installed directly at the tunnel portal or behind the rig. To meet the high-pressure demands of hard rock excavation, our two-stage compression units deliver a stable output of 13–20 bar, ensuring efficient anchor hole drilling. In bridge pile foundation construction, the equipment also supplies air to air-lift reverse circulation drills, accelerating debris removal and hole formation in deep pile holes.
