... screw air compressors are widely used in highways, railways, mining, water conservancy, shipbuilding, urban construction, energy, military, and other industries. ... , without overdrive gear. Speed of air ends is totally in line with the diesel engine, which makes it higher efficiency, ... 2026/9182.0/2906LTAA8.9-C360 4600×1950×2850 Energy saving High efficiency Diesel driven portable screw air compressor