Hydraulic screen changers are primarily used in the plastics processing industry, covering applications such as plastic pelletizing and extrusion. They filter out impurities and unplasticized particles from molten materials like PE, PP, and PVC, ensuring the purity of plastic pellets. Additionally, they are suitable for extrusion production of pipes, sheets, and films, preventing die blockages and product defects. They can also be used for filtering recycled plastics, facilitating resource recyc