Polymer & Plastics Filtration Solutions
Precision woven wire mesh filter packs, sintered laminates, and continuous screen changer belts engineered for high melt viscosity, elevated operating temperatures, and severe process pressures.
Application Fields & Filter Media Design
Select an industrial polymer sector to explore specialized mesh configurations, pressure envelopes, and design specifications.
Continuous Polymer Melt Extrusion Filtration
Engineered multi-layer wire mesh packs and continuous screen changers designed to withstand differential pressures exceeding 200 bar and melt temperatures up to 350°C.
Resin Family & Filter Media Selection Matrix
Recommended standard wire mesh weave patterns by target polymer chemistry.
| Polymer Group | Recommended Filter Weave | Standard Micron Range | Inquiry |
|---|---|---|---|
| Polyolefins (PP / PE / HDPE / LDPE) | Plain Dutch / Reverse Dutch | 25 – 150 μm | Quote Pack |
| Polyester & Polyamides (PET / PA6 / PA66) | Sintered Multi-Layer / Twilled Dutch | 5 – 40 μm | Quote Pack |
| Recycled Plastics (rPET / rHDPE / PCR) | Heavy Reverse Dutch / Multi-Disc | 50 – 300 μm | Quote Pack |
| Engineering Polymers (POM / PBT / PC / PEEK) | Sintered Fiber Felt / 316L Wire Mesh | 10 – 60 μm | Quote Pack |
Custom Melt Filter Pack Fabrication
Spot welded multi-layer packs, framed discs, kidney packs, and auto-screen roll belts custom fabricated to OEM extruder drawings.
Polymer Melt Filtration Technical Data & Plant Benchmarks
Validated wire mesh specifications, differential pressure tolerances, and operational data for demanding high-temperature polymer extrusion, fiber spinning, and recycling processes.
Gel Retention Efficiency
Validated at high melt index processing (285°C, 310 bar)
On-Stream Screen Life
Extended continuous run time before automatic indexing
Clean Pressure Differential
Minimal initial ΔP resistance through woven wire geometries
Thermal Stability Threshold
Continuous operating limits without structural fatigue
Alloy & Weave Performance Matrices
Select polymer processing application to inspect micron retention, burst limits, and wire specifications.
| Nominal Rating | Absolute Rating (ISO 4003) | Weave Structure | Wire Ø (Warp / Weft) | Open Area | Max ΔP Limit | Standard Alloy |
|---|---|---|---|---|---|---|
| 5 µm | 8 µm | Dutch Twill (DTW) | 0.025 / 0.018 mm | 24.5% | 320 bar | AISI 316L |
| 10 µm | 14 µm | Dutch Twill (DTW) | 0.035 / 0.025 mm | 28.0% | 340 bar | AISI 316L |
| 20 µm | 25 µm | Plain Dutch (PDW) | 0.050 / 0.036 mm | 32.2% | 350 bar | AISI 316L / 904L |
| 40 µm | 48 µm | Plain Dutch (PDW) | 0.070 / 0.050 mm | 36.8% | 380 bar | AISI 316L |
Validated Plant Performance Results
Documented production improvements from commercial polymer processors utilizing our stainless steel filtration mesh.
Application Challenge
Micro-gels causing pinholes and line breakage at line speeds exceeding 450 m/min.
Engineered Solution
Custom 5-ply sintered stainless steel 316L Dutch Twill filter discs rated at 10 µm absolute.
Validated Outcome
Film breaks reduced by 68%; zero optical gel defects reported over 1,200 continuous production hours.
Application Challenge
Frequent screen blinding from degraded aluminum micro-particles and carbon flecks under 320 bar melt pressure.
Engineered Solution
High-tensile auto-screen belt packs with calendered Reverse Plain Dutch weave in AISI 316Ti alloy.
Validated Outcome
Screen indexing frequency cut by 34%; overall extruder pellet yield increased by 4.2 metric tons daily.
Application Challenge
Spinneret clogging causing filament diameter variation and irregular fiber tensile strength.
Engineered Solution
Plasma-cut rim-sealed circular mesh filter packs with calibrated 14 µm absolute pore retention.
Validated Outcome
Spinneret life extended from 9 days to 26 days between cleanings with 100% filament consistency.
100% Bubble Point Verification
Automated pore size detection confirming max aperture limits.
Spectrometric Alloy Verification
PMI material testing confirming AISI 316L, 316Ti, and Hastelloy composition.
Ultrasonic Degreasing & Cleaning
Particle-free pack assembly prepared for high-purity polymer melt streams.
Frequently Asked Technical Questions
Require Custom Micron Cut-Offs or Continuous Belt Dimensions?
Our engineering team calculates ΔP curves, pack layering sequences, and provides trial samples.