HD-2330 electric waste oil extractor adopt special pumps with high vacuum speed and strong negative pressure ability,which can extract each kind of non-corrosive waste oil.It is a multipurpose machine,which can use in the situation without lift equipment and trench.The cylinder of high grade transparency adopted can observe and measure the oil capacity primarily.The waste oil can be observed by the oil window.The release pressure protective device that equipped in the machine body makes it more safe,convenient and faster to use.