This plastic recycling machine is a round pre-washing tank, which is used for pre-washing the heavy dirty films before crusher. In this washing tank, it has two washing rollers of which the rotating speed is very fast. And by the round tank design, the films can be washed many times in short time. It is very helpful to remove the dirties such as sands and soil during the processing. Therefore, the after plastic crushers of the PE/PP film washing line can be protected well. In the waste plastic recycling machine industry, it is a very important new developed unit for the plastic film recycling plant, especially for recycling the heavy dirty plastic films, agricultural films and land films.