The double column screen changer has become an indispensable core auxiliary device for modern recycled plastic pelletizing production lines, solving the key pain points of frequent shutdowns, unstable melt quality and low production efficiency in waste plastic recycling and granulation processing. As a professional continuous melt filtration equipment, it is widely applied in the pelletizing production of various recycled plastics including PP, PE, PET, ABS and PVC, perfectly adapting to the ind