The hydraulic oil cleaning system removes pollutants smaller than 1-3 microns through physical reactions, and changes the color by adding chemical silica gel. The recovered oil can be used as hydraulic oil again after processing.
Depth filters can also absorb insoluble pollutants, such as sludge, varnishes, and particles smaller than 1 micron, by continuously absorbing oil (e.g., attracting and trapping pollutants in their filter media). These oxidized low molecular weight products were originally Soluble in oil. Over time, they polymerize into high-molecular-weight products, which become sludge, varnishes, and varnishes, causing machine failure. Machines are equipped with suction filters to remove larger contaminants and protect machine pumps; these machines are equipped with surface filters installed in series for fast filtration.
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