80 260 40 micron Stainless Steel Wire Belt Screen Changer extrusion automatic pp extruder screen mesh filter for plastic pelletizer

80 260 40 micron Stainless Steel Wire Belt Screen Changer extrusion automatic pp extruder screen mesh filter for plastic pelletizer

brief introduction of pp extruder screen mesh

PP extruder screen mesh, also named plastic extruder filter screen, is woven from high-purity polypropylene monofilament into uniform mesh sheets or cut discs. It is specially matched for plastic extrusion machines, injection molding equipment and melt filtration systems. During plastic melting extrusion, this mesh filters out impurities, gel particles, carbon residues and foreign contaminants in molten PP, PE, PVC and other plastic raw materials to guarantee finished plastic product smoothness. Custom mesh count, thickness, round/rectangle cut sizes and multi-layer composite packs are available for single-screw and twin-screw extruders

Features of extruder filter mesh

Material Performance

1. Made of food-grade pure PP polypropylene, excellent acid, alkali and chemical corrosion resistance, no reaction with plastic melt.
2. Good heat resistance, stable working temperature up to 100-120℃, no softening, deformation or toxic precipitation under normal extrusion temperature.
3. Low melt adhesion, easy to clean residual plastic after use, reusable after simple washing.
4. Non-toxic, odorless, compliant with food contact plastic production standards.

Weaving & Structural Advantages

1. Precise plain/twill weaving with uniform aperture, stable filtering precision, effectively blocking tiny impurities. Mesh counts range from 20 mesh to 300 mesh to meet different filtration requirements.
2. Smooth surface without burrs, no fiber shedding to pollute plastic melt.
3. Good tensile strength and pressure resistance, not easy to break under continuous melt pressure inside extruder.
4. Can be cut into round filter discs directly matching extruder breaker plates; multi-layer combined mesh packs (coarse + fine mesh) for graded filtration.
5. Lightweight, easy to replace and install on extrusion machine filter holders.

Cost & Practical Advantages

1. Lower cost than stainless steel filter mesh for low-temperature plastic extrusion lines.
2. Short replacement cycle operation, quick disassembly to improve production efficiency.
3. No metal particle shedding risk, avoids black spots and metal speck defects on plastic films, sheets and injection parts

Application of plastic extruder filter mesh

Plastic Extrusion Industry (Core Usage)

• Film extrusion: PP film, plastic wrapping film, agricultural mulch film, food packaging film melt filtration.
• Sheet & board extrusion: PP plastic sheet, plastic panel, plastic geomembrane production filtration.
• Pipe extrusion: PP-R water pipes, plastic drainage pipes, plastic profile extruder filter screens.
• Injection molding: Filter impurities in molten plastic before entering mold to reduce product blemishes.

Textile Plastic Fiber Production

• PP spunbond nonwoven fabric, meltblown fabric, plastic fiber spinning melt filtration to remove gel blocks.

Food Grade Plastic Production

• Disposable plastic tableware, food containers, plastic straws, food packaging raw material purification filtration.

Chemical & Environmental Industry

• Filtering low-temperature chemical liquid, weak acid/alkali solution; waste water plastic particle recovery filtration.