How to Choose a PET Sheet Extrusion Machine
Match width, kg/h, and flake ratio before you pick twin-screw or single-screw. Drying, vacuum, and cup-machine balance decide clarity.
Read article →Engineering notes
Practical checklists our project engineers use when sizing extruders, formers, molds, and utilities — not generic industry news.
Match width, kg/h, and flake ratio before you pick twin-screw or single-screw. Drying, vacuum, and cup-machine balance decide clarity.
Read article →FS 40–50 cpm and 95–120 kW versus LS 25–38 cpm and 65–90 kW. Use energy, cavity plan, and service skill — not the brochure photo.
Read article →Heat, density, clarity, and drying: PP to ~120°C, PET best clarity, PS easy forming but tighter recycling rules. Lock resin before you freeze the mold.
Read article →Sequence: cup mix → cavities → former → sheet kg/h → kVA, air, chiller → stacker and crusher → mold freeze. 35–45 day machine lead after drawings.
Read article →Cavity count is limited by forming area and pitch, not the model name. Cooling circuits and in-mold cut change cycle time more than the PLC.
Read article →Vacuum vs 4–6 h predry, flake ratio, IV, and 30–50% extra capital. SI/XSI versus LSI-PET-PLA — when we refuse a single-screw quote.
Read article →Skeleton is 30–50% of the web. Online crusher for continuous PP/PS; offline for lumps. PP regrind 20–40%; PET needs another dry pass.
Read article →Split extrusion rolls and mold loops. Tons ≈ mass × specific heat × ΔT with a 20% margin. Hall air is not process water.
Read article →Dry 4–6 h at ~80–100°C toward <250 ppm (prefer <100). Melt often 170–210°C. Not drop-in PP. Purge the screw.
Read article →Cups/h = cavities × cpm × 60 × uptime. Brochure 40–50 cpm is not year-one output. Worked path from 20 million/month to FS-7842 vs FS-8560.
Read article →