Woven Bag Extrusion Coating and Lamination Unit
This high-speed extrusion lamination line operates at speeds of up to 250 m/min and is designed for processing coating-grade resins—such as LDPE and PP—onto substrates like woven bags and non-woven fabrics. It is widely used in the production of pharmaceutical and food packaging films, office and stationery packaging, construction packaging, and other flexible composite materials, with a primary focus on the extrusion coating of woven plastic fabrics.
Machine Highlights
- Intelligent Control System: The unit utilizes a PLC-based HMI control system supporting preset process parameters, fault self-diagnosis, and remote monitoring. It enables fully automated operation—from unwinding and extrusion coating to lamination and winding—minimizing manual intervention and enhancing production stability.
- Dynamic Tension and Edge Guiding: Equipped with an automatic tension control system and photoelectric/infrared edge-guiding devices, the machine ensures smooth substrate transport at high speeds, reducing material loss due to stretching and preventing edge misalignment.
- High-Speed Winding and Non-Stop Roll Changing: The winding section employs large-diameter, high-speed synchronization technology. It supports automatic cutting, roll changing, and shaft loading/unloading, enabling continuous operation without downtime and significantly boosting productivity.
- Multi-Substrate Compatibility: Compatible with extrusion coating resins such as PP, PE, and EVA, and capable of laminating various substrates—including woven fabric, non-woven fabric, paper, and aluminum foil—to meet packaging requirements across diverse industries (e.g., fertilizer bags, food packaging, and pharmaceutical packaging).
- Customized Solutions: Specialized machine models can be designed to meet specific customer needs—such as optimizing extrusion pressure for heavy-duty woven bags or developing high-precision temperature control modules for ultra-thin extrusion coating applications.
Specifications
| Laminating Width | 300-800 mm |
| Mechanical Speed | 280m/min Coating Speed: 150-250m/min, Precise Speed is based on the material and process technology. |
| Suitable Base Material | Paper (35~350gram/㎡), Non-Woven Fabric, Woven Fabric |
| Max Winding Diameter | 1400mm |
| Total Power | 150kw |
| Power Supply | 380/3/4/50 (Volt/Ph/Line/Hz) |
| Note: As the products are developing day by day, the technical data are subject to change without notice. Different size models can be custom-made. | |
FAQ
A woven sack producer is assessing lamination for moisture-proof packaging. What improvements are typical?
Lamination acts as a barrier against moisture, increases the strength of the woven bag, and results in clearer printing.
A bulk-goods packaging supplier is exploring PP woven lamination. What outcome is common?
After coating, it offers enhanced wear resistance and load-bearing capacity, making it suitable for products such as rice and animal feed.
Main components
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