The high-altitude, low-oxygen, and wide-temperature‑range environment of Qinghai poses unique challenges to air compressors. Oil-free screw compressors, with their zero oil contamination, high purity, and robust environmental adaptability, have become the ideal choice for industries such as food,…

This paper analyzes the essential differences between high-pressure water screw machine and high-pressure oil-free screw machine in lubrication principle, clean air implementation mode, applicable pressure range and operation and maintenance points, help users choose more suitable clean compressed…