Transformer Oil filters can be divided into Mobile Transformer Oil Filtering Machine (portable oil filters) according to different functions, which are used for regular maintenance and bypass filtration of hydraulic systems. Mobile oil filters are used to filter new oil. The box-type oil filter is used for the filtration of the lubricating system during refueling and the circulating filtration before operation. The high-viscosity oil filter is used to filter high-viscosity lubricating oil. The high solid content oil filter is suitable for occasions with serious oil pollution and high solid content, and is also used for waste oil regeneration. In addition, there are also used in the purification of turbine oil and transformer oil and the removal of water and impurities in hydraulic lubrication systems, coalescing dehydration oil purifiers and high-efficiency vacuum oil purifiers. When choosing, you should pay attention to the following points: 1. The filtration precision should meet the predetermined requirements. 2. It can maintain sufficient flow capacity for a long time. 3. The filter element has sufficient strength and will not be damaged by the action of hydraulic pressure. 4. The filter element has good corrosion resistance and can work for a long time at the specified temperature. 5. The filter element is easy to clean and replace.