Eight-fold Single Screw Film Blowing Machine
2025-10-17This film blowing machine adopts a single-screw design. The blown film passes through the mold design and mechanical transmission system, and is folded and formed simultaneously during the film blowing process. It is suitable for PE materials and biodegradable materials, and can produce supermarket shopping bags, pet waste bags, etc.
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Expert Insights & FAQ
The extruder screw diameter determines the output capacity (kg/hr), while the die head diameter and Blow-Up Ratio (BUR) determine the film's layflat width. To spec a machine, you should define your target width and thickness first, then work backward to determine the required output and screw size. How do I spec the right extruder size for my target film width?
Extruder size is determined by output demand: a 55mm screw delivers 80–120 kg/hr, while a 90mm screw reaches 300–400 kg/hr. Always spec the machine by working backward from your target layflat width and film thickness. film-blowing-machine-extruder-calculation
By upgrading to servo drive systems (saving 28-34% on haul-offs), implementing OEE monitoring, and optimizing IBC cooling systems, manufacturers can significantly reduce energy draw per kg of film. Energy saving blown film tips
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