The machine is a stainless steel multilayer frame filter, suitable for concentrations below 50% viscosity. It has less fluid slag content for airtight filtering. To achieve purification, sterilization, and clarification, it removes activated carbon, fine particles, without using microporous membrane filter to achieve the purpose of aseptic filtration. This machine has a big filter area, a large flow rate, and a wide application range. It is widely used in the pharmaceutical, chemical, and food industries. And is especially used in filtering injection liquids for pharmaceutical factories.