Web Sealing Machine - Overlap Seal (200-400 mm Web Width)

A web sealer combined with a shrink tunnel is commonly used in the packaging of liquid bottles to create a secure and tamper-evident package. This system is widely utilized in industries such as beverages, cosmetics, and pharmaceuticals. Components: Web Sealer: Function: The web sealer wraps a plastic film around the bottles, creating a continuous sleeve or band. This sleeve is often made from shrink film, which will later be tightened around the product in the shrink tunnel. Operation: Bottles are automatically fed into the web sealer, where the film is cut and sealed around each bottle or a group of bottles. This sealing is typically done using heat, which bonds the edges of the film together. Shrink Tunnel: Function: The shrink tunnel applies heat to the wrapped bottles, causing the shrink film to contract tightly around them. This process creates a snug, tamper-evident seal that holds the bottles securely in place. Heat Application: The tunnel uses controlled heating elements to ensure even shrinkage of the film, avoiding wrinkles or uneven sealing. Cooling Section: Some shrink tunnels include a cooling section to set the film and improve the appearance of the final package. Benefits: Secure Packaging: The combination of web sealing and shrink wrapping ensures that the bottles are securely held together, preventing movement during transportation and storage. Tamper Evidence: The tight seal provided by the shrink film makes it easy to detect any tampering with the product.