Running thin gauge film (like 15-20 micron garment bags) requires high haul-off speeds and tight die gap settings. Conversely, heavy-duty film (like 150 micron construction film or heavy bags) needs a slower haul-off and higher output to prevent the melt from sagging.
To handle this 15-150 micron span without changing the die head every day, your machine must have:
Adjustable Die Gap: Manual or motorized lip adjustment is a must.
Wide Haul-off Range: A speed span of at least 8:1.
Flexible Air Ring: Variable airflow to stabilize different bubble sizes.
Pro Tip from Yuexing: Expect a 30–45 minute changeover time when switching between these extremes. You'll need a short trial run to stabilize the process before you hit "sellable" film quality.
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