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Oil-free screw air compressors compress air through two screw rotors and then remove moisture from the compressed air through a water-gas separator. At the same time, because there is no oil injection for cooling, the compressed air is usually cooled, equipped with pre-coolers, intercoolers, and aftercoolers, to meet the requirements of the outlet temperature. High-performance shaft seals on the rotor shaft prevent lubricating oil from leaking into the compressed air, achieving oil-free operation. UNITED oil-free variable speed screw air compressors can change the power frequency, adjust the load, and reduce power consumption. The frequency converter is at its core, changing the motor's operating speed through the conversion of industrial frequency.

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Oil-free screw air compressors compress air through two screw rotors, and then remove moisture from the compressed air through a water-gas separator. At the same time, because there is no oil injection cooling, the compressed air is usually cooled, equipped with pre-coolers, intercoolers, and after-coolers, to meet the requirements for outlet temperature. High-performance shaft seals on the rotor shaft prevent lubricating oil from leaking into the compressed air, achieving oil-free operation. UNITED OSD oil-free variable speed screw air compressors can change the power frequency, adjust the load, and reduce power consumption. The frequency converter, with the inverter as its core, changes the motor's operating speed through the conversion of industrial frequency.

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