Blown Film Extrusion Lines
High-efficiency mono and multi-layer film lines for packaging, agriculture, and biodegradable applications
How Blown Film Extrusion Works?
Blown film extrusion technology is a cornerstone of the plastics industry. The process involves extruding a molten polymer through an annular die, creating a thin-walled tube that is then inflated with air to create a “bubble.” As this bubble travels upwards, it is cooled and collapses, then rolled onto a winder. This method allows for the production of a wide variety of film types, including high-density polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE). For manufacturers, maintaining these complex lines requires a reliable Industrial Service provider to ensure optimal performance and minimize downtime. The ability to adjust film properties such as gauge, width, and strength makes blown film extrusion a highly adaptable solution for manufacturing everything from food wraps to industrial liners.
Applications
Packaging Films
Agricultural Films
Biodegradable Films
Industrial Films
Supported Materials
General-purpose polymers
Biodegradable
Specialty
Recyclables
Key System Features
- Mono-layer or multi-layer (ABA / ABC / A+B+C / up to 5-layer) configurations
- Co-extrusion options for optical, strength, and barrier layering
- Gravimetric feeding and metering for consistent formulation
- Rotary die heads for improved film uniformity
- IBC (Internal Bubble Cooling) for high-output & clear films
- Auto air ring for consistent bubble diameter and thickness
- Ultrasonic or laser-guided bubble control
- Film oscillation systems for gauge uniformity
- Auto thickness measurement & feedback control
- Surface, center, or turret winders with auto roll change
- Corona treaters, edge trimming, slitting options
- Scrap recycling integration
Technical Specifications
Typical Range
Feature
Film Width
Output Capacity
Layers
Film Thickness
Die Diameter
Line Speed
Industries Served
