Oil-Flooded Rotary Screw Air Compressors



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Oil-flooded rotary screw air compressors are a type of air compressor that use two interlocking helical screws to compress air. These screws rotate in opposite directions, trapping air between them and reducing its volume. The compression process is lubricated with oil, which helps to cool the air and reduce wear on the screws. The oil also helps to seal the gaps between the screws, improving efficiency and preventing air leakage. After compression, the oil and air mixture is separated, with the oil being cooled and recycled back into the compressor, while the compressed air is sent to a storage tank or used directly in various applications.

Sizes and Capacities

The size and capacity of oil-flooded rotary screw air compressors can vary depending on the specific model and manufacturer. They are available in a wide range of sizes, from small portable units to large industrial compressors. The capacity of an oil-flooded rotary screw air compressor is typically measured in terms of cubic feet per minute (CFM) or liters per second (L/s). The capacity can range from a few CFM for smaller units to several thousand CFM for larger industrial compressors.


Oil-flooded rotary screw air compressors have several advantages. Firstly, they provide a continuous supply of compressed air, making them suitable for applications that require a constant flow of air. They also have a higher capacity and can deliver larger volumes of compressed air compared to reciprocating air compressors. Additionally, oil-flooded rotary screw air compressors are more energy-efficient and have a longer lifespan. The oil lubrication system in these compressors helps reduce wear and tear, resulting in lower maintenance costs. They also operate at lower noise levels and have a smaller footprint, making them suitable for various industrial and commercial settings.