The hydraulic oil filter is used in various oil systems to filter out solid impurities generated during external mixing or system operation. It is mainly installed on the oil suction path, pressure oil path, return oil pipeline, bypass, and separate filtration system in the system.

Industrial hydraulic fluids will mix in some impurities during use due to various reasons. The main impurities are mechanical impurities, water and air. These magazines will cause corrosion to increase, increase mechanical wear, reduce work efficiency, and reduce the oil product.