Polymer Melt Filtration Applications
Continuous polymer melt extrusion generates unmelted gels, carbon specks and particulate contamination that must be removed under high temperature and pressure.
Precision stainless steel woven wire mesh protects downstream spinnerets, cast dies, and pelletizers against abrasive wear and costly shutdowns. Engineered wire structures guarantee predictable differential pressure retention across continuous high-throughput runs.
Section 01
Overview
Polymer melt filtration is used in continuous extrusion to remove unmelted gels, carbon specks, and particulate contaminants from the melt stream before reaching the die.
Maintaining continuous purity stabilizes barrel pressure, prevents nozzle clogging, and safeguards final product integrity across compounding, blown film, sheet, and synthetic fiber manufacturing lines.
Section 02
Filtration Requirements
Standard thresholds required to ensure uninterrupted melt flow and uniform product gauge.
Filtration rating
5 – 250 μm
Precision retention for unmelted gels, carbon flecks, and debris.
Max differential pressure
Up to 250 bar
Rigid structure built to resist deformation under high line pressure.
Operating temperature
Up to 400°C
Thermal stability suited for standard and engineering polymers.
Corrosion & chemical compatibility
AISI 304 / 316L / Alloys
Inert metallurgy for corrosive additives and aggressive resin grades.
Solutions & Product Options
Standard and engineered stainless steel filter media designed for rigorous industrial separation demands.
Engineered multi-layer and framed mesh packs for polymer extrusion and continuous melt filtration.
Diffusion-bonded stainless steel laminates offering high mechanical strength and stable micron ratings.
Precision square and dutch weaves across 304, 316L, and specialty alloys for general screening.
Key Selection Factors
Evaluate these primary engineering parameters to configure reliable mesh assemblies for your operating conditions.
Pore size precision
Ensures targeted contaminant removal and predictable particle retention under production flow.
Dirt-holding capacity
Balances initial flow resistance with extended on-stream runtime before requiring changeout.
Thermal stability at melt temperature
Prevents structural distortion, pore collapse, or layer delamination under extreme melt heat.
Pressure rating & delta-P resistance
Maintains filtration integrity across high differential pressures in heavy extrusion cycles.
Alloy grade (316L / 904L for corrosive resins)
Protects against chemical attack and acidic degradation from halogenated or filled engineering polymers.
Custom mesh engineering to your exact specification
MutualFilter can engineer solutions based on application, material, aperture, dimensions, and operating conditions.