1000 x 1000  plate and frame cardboard fine filter (plate and frame filter, the cardboard purifier) belongs to the precision filter machine series of cardboard fine filter, diatomite filter, the fine filter, the structure consists of frame, pipeline system, fine filter plate group, a clamping device (gear handwheel, manual hydraulic, hydraulic automatic device for the user to choose), the products with required board, after the coarse filtration, turbidity value reached the requirements of the liquid for further purification. According to the performance of the board may achieve fine filtration and aseptic filtration, especially with sterilized cardboard can be 100% of 0.2 to 0.5um cell and solid particle retention and thus can replace the old craft of pasteurization and better retention of the original characteristics.