Cutting fluid mixed with water and slideway oil for a long time will produce aerobic bacteria and anaerobic bacteria, resulting in water quality deterioration and viscosity. Oil Water Separation is a device that separates oil and water so that the cutting fluid is not easily corrupted and the service life is improved. CNC Machine Oil Skimmer and Coolant Tank Oil Skimmer are miniaturized, efficient, energy-saving, and do not take up space.