1. Filtering impurities: In the production and storage process of plastic, rubber and other raw materials, it is inevitable to mix some impurities, such as metal particles, carbonized materials, sawdust, etc. The filter screen in the screen changer can effectively filter these impurities, ensure the purity of the extruded material, avoid impurities affecting the quality and performance of the product, and prevent surface defects, holes, fractures, and other problems.

2. Protecting downstream equipment: If impurities are not filtered, they may enter downstream equipment such as melt metering pumps, molds, etc., causing wear, blockage, and other damage to these precision equipment, reducing the service life and work efficiency of the equipment. Filtering impurities through a screen changer can reduce the occurrence of equipment failures, lower maintenance costs and downtime.

3. Improving product quality stability: A continuous and stable production process is crucial for ensuring consistency in product quality. The screen changer can replace the filter screen without stopping or for a short period of time, avoiding production interruption and material waste caused by filter screen replacement, maintaining the continuity of the production process, and thus improving the stability of product quality.

4. Adapting to different production needs: When producing products with different specifications and quality requirements, it may be necessary to use different mesh sizes or types of filters. The screen changer makes it more convenient and efficient to replace the filter screen, and can flexibly adapt to different production needs, improving the flexibility and adaptability of production.

5. Improve production efficiency: The design of modern screen changers is constantly optimized, making operation easier and significantly reducing screen changing time. This means that during the production process, the filter screen can be replaced more quickly, reducing downtime, improving the production efficiency of the extruder, and increasing output.