This oil purifier(oil recycling,oil treatment,oil filter,oil reccovery,oil regeneration)plant is apply to regenerate and purify the used insulation oil such as transformer oil, switch oil, mutual inductor oil and so on. It can remove water, gas, particle, free carbon, deep oxides and so on. Also it can recover the oil color. After purification, the used insulating oil can reach international standard and recover its original function. Features: 1. Besides the common vacuum oil purifier's function of dewatering, degassing and eliminating impurities, this machine can regenerate the seriously deteriorated oil by removing the polarity materials, such as the deep oxides, free carbon in the oil effectively. It can make the seriously deteriorated oil reach to the normal index like anti-oxides, acid- alkali water-solubility.