Process notes for ordering.
Polymer melt filtration duty depends on resin type, melt temperature, throughput, contamination level and whether the line uses a manual breaker plate or continuous screen changer. The ranges below are typical starting points for quotation — operating limits vary by equipment and must be confirmed per project before production release.
| Parameter | Typical range (extrusion) | Notes for RFQ |
|---|---|---|
| Melt temperature | Approx. 180–320 °C | Confirm base resin; additives and peak heat during startup |
| Operating pressure | Line-dependent; share allowable ΔP rise | Fine packs blind faster on recycled melt — state safe limit before change-out |
| Media / polymer | Virgin PE/PP/PET; masterbatch; filled compounds; PCR regrind | Filler %; gel level and moisture history affect layer stack |
| Retention target | Mesh count + weave or micron nominal | Send incumbent pack photo or layer list — mesh count alone is incomplete |
| Screen change interval | Hours to days on recycling; longer on virgin | Helps tune open area vs fineness |
| Cleaning / reuse | Sacrificial packs vs back-flush sintered | Sintered suits some continuous changers; mesh packs often disposable |
Operating limits vary by equipment — values confirmed per project.
For automatic screen changers, note manufacturer and model — thickness tolerance and tab orientation affect sealing. For recycling lines, describe regrind source and worst-case contamination so the pre-layer is not under-sized. Unit price, MOQ and lead time are confirmed after specification review, not assumed from a previous supplier catalog.
Operating limits vary by equipment — values above are typical ranges, confirmed per project.
