Continuous Mesh Belt Screen Changer for Plastic or Rubber Extruder
In plastic and rubber extrusion production, traditional screen changers often require line shutdown for manual screen replacement, which causes pressure fluctuation, material waste and low productivity. Our new continuous mesh belt screen changer solves these pain points with automatic, non-stop melt filtration design, widely adopted for recycling granulation, blown film, sheet, pipe and rubber compounding lines.
This screen changer works based on pressure difference feedback. When impurities accumulate and melt pressure rises to the preset value, the stainless steel mesh belt automatically advances at a controlled speed. The contaminated mesh section exits while fresh filter mesh enters the melt channel for filtration. The whole switching process runs continuously without stopping the extruder, so production rhythm will not be interrupted.
Constant melt pressure is its core advantage. Unlike slide-plate or piston screen changers with obvious pressure pulsation, this belt-type structure keeps stable melt flow. It effectively filters carbon spots, paper scraps, sand and other contaminants from molten polymer, delivering consistent pellet or finished product quality and lowering reject rate.
Built with reliable hydraulic drive and precise control system, the mesh feeding speed can be adjusted according to raw material contamination level. The customized sealing structure prevents melt leakage. Operators only need to load a roll of stainless steel filter belt at one time; no frequent on-site screen replacement is required, greatly cutting labor cost.
It supports multiple materials, including PP, PE, PET, PVC, and various rubber compounds. The filter mesh specification can be selected to match different filtration precision requirements. Easy installation and good adaptability allow it to connect seamlessly with most brands of extruders and granulators.
For recycling factories running long-hour continuous production, this continuous mesh belt screen changer improves line uptime and reduces production loss during screen change. It is a cost-effective melt filtration solution for high-volume plastic and rubber extrusion.
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