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UNITED OSD's new generation UDBS series oil-free screw blowers are manufactured using advanced screw profile technology. By operating on the principle of internal compression, the compression efficiency is significantly improved. Compared to the external compression of traditional Roots blowers, its actual energy-saving rate is up to 35%. As a highly energy-efficient positive displacement blower, it is widely used in industries requiring energy saving, low noise, and efficiency, such as wastewater aeration, air-water backwashing, oxidative desulfurization, fluidization/homogenization technology, pneumatic conveying, and printing. It also functions as a pressure fan for drying, dust removal, fermentation, evaporative distillation, and pneumatic conveying.