Industry · Plastic Packaging
From cooling channels to pellet feed lines: filtration engineering that determines cycle time, surface quality and scrap rates.
TSS < 50 mg/L
Cooling water target
< 200 mg/L
Hardness target (CaCO₃)
rPET · rPP
Lines that require backwash filters
Critical points
Scale in cooling channels lengthens cycle time, and dust in the pellet line comes back as black specks in transparent packaging. Both can be prevented at the source.
A fouling layer in mold channels reduces heat transfer, cycle time increases and dimensional deviations begin. Targets of TSS < 50 mg/L and hardness < 200 mg/L CaCO₃ keep this risk under control. Preventing micro-wear extends mold life and lowers maintenance costs.
Solution: Cooling water within TSS and hardness targets
Dust and foreign particles in pneumatic conveying lines appear as black specks and structural weaknesses in transparent packaging. Filters at the pellet feed and melt stages capture these particles at the source. Because rPET/rPP lines carry a high load of foreign matter, automatic backwash filters should be used.
Solution: Pellet feed and melt filtration
Clean cooling water preserves chiller and heat exchanger efficiency and prevents fouling-related energy losses. Closed-loop filtration reduces water discharge, lowering both costs and environmental impact.
Solution: Closed-loop filtration
Production line
Select a stage on your line to see the Prosestim filters and micron range used at that point.
01 · Dust · foreign matter
Dust and foreign particles in pneumatic conveying lines appear as black specks in transparent packaging.
02 · rPET · rPP
Because rPET/rPP lines carry a high load of foreign matter, automatic backwash filters should be used.
03 · TSS < 50 mg/L
Fouling in mold channels reduces heat transfer; TSS and hardness targets keep this risk under control.
04 · Energy efficiency
Clean cooling water preserves chiller and heat exchanger efficiency.
Applications
The same filtration principles apply across applications, with different material and micron choices.
Transparency and cooling quality.
Pellet and melt purity.
Backwash filtration.
Closed-loop water savings.
Products used in this industry
Each product page lists the micron range, material compatibility and operating conditions.
Self-cleaning filter housing, 10–3,000 µm, that cleans itself without stopping the line; no cartridge changes, no downtime
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100% pure PP, binder-free melt-blown cartridge filter (sediment filter); 1–150 µm for RO pre-filtration and process water
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String-wound cartridge filters in 8 media including PP, cotton and glass fiber, 0.8–150 µm, 5″–40″ lengths
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High flow cartridge filter, 0.5–100 µm, 10″–60″ lengths; equivalent options compatible with 3M and Pall housings
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Polyester felt bag filters, 1–200 µm, rated up to 135 °C; used on paint, coating and chemical lines
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Stainless steel cartridge filter housing with AISI 304L/316L/316Ti body and 1–60 cartridge capacity
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Invoice name (registered company name)
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