7 Layer Co-Extrusion Film Blowing Machine
Our 7-layer film blowing machine is designed for high-performance production with advanced control mechanisms and durable construction. It supports reliable output for industrial applications requiring multi-layer film production.
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Multi-layer Structure Design: Precise Temperature Control SystemThe seven-layer co-extrusion blown film machine enables flexible combinations of various materials, including EVOH, PA, and PE. By combining these materials and precisely controlling the thickness of each layer, the film delivers excellent barrier performance, high strength, and high transparency. The machine features seven independent temperature control zones, which precisely regulate the performance and distribution of each functional layer. This ensures that each layer is formed under optimal temperature conditions, thereby guaranteeing consistent film quality. -
Efficient and IntelligentSome models are equipped with an IBC bubble internal cooling system. External cooling systems—such as air rings or water cooling—can also be integrated to ensure rapid and uniform bubble cooling. This improves production efficiency while enhancing film transparency and mechanical properties. A servo motor drives the film horizontally to achieve more complete cooling and a more stable drawing process. Fully automatic surface-friction back-to-back double rewinding, combined with high-precision taper tension control, ensures neat, efficient winding. -
Automation ControlThe electrical control system uses a PLC programmable controller. Through a centralized computer control platform, operating parameters are displayed in real time, enabling intelligent and precise on-site control and monitoring, as well as remote parameter setup. Processing parameters can also be stored for convenient operation and quality control.
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Model |
55-50-50-50-50-50-55/1600 |
65-55-55-55-55-55-65 / 1800 |
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Film width |
700-1200mm |
900-1400mm |
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Film thickness |
0.0035-0.18mm |
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Output |
120-170kg/h |
140-250kg/h |
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Refer to performance based on different film width, thickness, die size, and raw material characteristics. |
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Raw material |
PA/EVOH/LDPE/LLDPE/MLLDPE |
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Screw diameter |
Φ55/50/50/50/50/50/55 |
Φ65/ 55/55/55/65 |
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Screw L/D ratio |
32:1 (with force feeding) |
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Gearbox |
180# × 2 173# × 5 |
200# × 2 180# × 5 |
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Main motor |
30kW × 2 22kW × 5 |
37kW × 2 30kW × 5 |
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Die diameter |
Φ300mm/400mm |
Φ400mm/500mm |
The above parameters are for reference only. They can be customized according to customer requirements. For detailed data, please refer to the actual product.
