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Co-Extrusion Technology stands at the forefront of modern plastic-film manufacturing, allowing multiple polymers to be extruded simultaneously through a precision die and an optimized flow-channel design to create multilayer structures. Each resin contributes unique properties—strength, clarity, barrier, or adhesion—giving converters greater flexibility and value.
CHYI YANG’s flagship 3-Layer Blown Film Machine features the German-engineered PLASTCONTROL Automatic Thickness Control System. A segmented cooling ring and intelligent dual-airflow regulation make real-time gauge adjustments, dramatically reducing transverse thickness deviation. Closed-loop feedback software and ultra-responsive actuators deliver unrivaled gauge stability, critical for high-value applications requiring tight thickness tolerances.
The line also integrates an IBC (Internal Bubble Cooling) unit, boosting output by 10–15 %, stabilizing bubble diameter, and minimizing edge trim—key drivers of energy efficiency and ESG sustainability. A high-precision Gravimetric Dosing System maintains a ±0.1 % recipe accuracy, ensuring weight-per-meter consistency and superior product repeatability.
- Core Applications: food & dairy packaging, greenhouse/agricultural film, shrink film & hood, construction sheets, liners, heavy-duty sacks.
- Maximum lay-flat width: 4.2 m (8.4 m when the single-layer-opened films).
- Processes a broad resin portfolio—HDPE, LDPE, LLDPE, EVA, MPE, PP, and other specialty polymers.
- Three independently driven extruders with three sets of gearboxes and motors ensure precise layer throughput control.
- Optional 360° oscillating nip roller delivers superior transverse gauge uniformity and enhances rotary die performance.
- German PLASTCONTROL thickness control system combines high-speed actuators with real-time software to minimize transverse thickness variation.
- Automatic segmented cooling ring actively balances dual air streams for consistent bubble stability and tight thickness tolerances.
- Optional in-line waste-film refeed system returns edge trim directly to the extruder, eliminating scrap and reducing raw-material costs.
Please note that the models shown here are not exhaustive. If you require larger extruders, please feel free to visit: www.chyiyang.com
Watch CHYI YANG’s 3-layer Blown Flim Line Videos at these links: