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How Does a Strapping Machine Work?

The process of the Strapping Machine is sealing and wrapping a thermoplastic film over the product by using heat. There are many machines available for Strapping Machine. A shrink tunnel or shrink chamber uses steam, infrared radiation, or electricity as the heat source. Commercial machines have sealers installed with the tunnel. They can be entirely automatic or semi-automatic. Many Strapping Machine manufacturers can customize them according to a business’s requirements.

Features of Strapping machinery

The body of a shrink-wrapping machine is made from corrosion-resistant materials like stainless steel and metal alloys. Thus, the machine is robust and durable. Also, the machine’s body has an external heat-protective insulating layer. This layer increases energy efficiency by preventing heat dissipation. It also ensures the operator’s safety against burns.

  • The sealing knife is made from durable materials as nichrome and aluminum. An insulating coating of Teflon on the sealing knife prevents the coking and charring of the shrink film. 
  • There is even heat distribution inside the machine because of the airflow technology. The result of the technology is wrinkle-free, smooth, and bubble-free plastic packaging.
  • Vacuum Packing Machine are energy-efficient and cost-effective. They have a control panel to adjust the temperature, power supply, height of the tunnel or chamber, and the speed of the conveyor belt.
  • The packaging machinery has an inbuilt cooling system to prevent overheating. 

Operation of Strapping machinery

Different packaging machines have differing workings. In an L-sealer shrink tunnel, the sealing knife closes the sides of the package. This operation may be automatic or operator-driven. The sealed packet then moves into the shrink tunnel. The heat inside the tunnel alters the molecules of the plastic film, and it tightly clings to the product.

L sealer shrink tunnel is suitable for small product sizes. A web-sealer shrink tunnel is effective for packaging cans and bottles. In automatic side shrink sealer, the package moves fast on the conveyor belt. A mechanical arm seals and trims the edges of the packet. 

A shrink sealer chamber both seals and wraps the film around a product. A roll of shrink film is present at one edge of the machine. Next to it, a tray provides space to insert the product inside the shrink film. Further, the product is put in the chamber. The magnetic closure of the chamber holds the product in place. Hot air shrinks the plastic film providing a protective covering to the product. Strapping Machine are fundamental to the end-use industries such as pharmaceuticals, food, consumer goods, cosmetics, etc. Employing these machines in a manufacturing unit reduces the production costs and the production time. Manufacturers can customize the machine as per the requirement of a business.

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