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How Do Automatic Shrink Bundlers Work?

March 13, 2025
Automatic Shrink Bundlers


At their core, industrial automatic shrink bundlers work by wrapping multiple products in a registered film, securing them as a single unit. This process is beneficial in industries where products need to be bundled together for distribution or sale. The machine wraps the products, applies heat to shrink the film, and then cools it to seal the package tightly.

Key Components Of Automatic Shrink Bundlers
Most shrink bundlers, such as those from brands such as Polypack, Pester, and Douglas Machine, include components like a film unwinding system, a sealing mechanism, and a shrink tunnel. The film unwinding system feeds the film into the machine while the sealing mechanism cuts and seals the film. The shrink tunnel applies heat to shrink the film around the products.

Key Features to Consider

  • Print Registration: Print registration is crucial for ensuring that the packaging aligns correctly with the printed design. This feature is particularly important in maintaining brand consistency and appeal on store shelves.
  • Right Angle Packaging: Right-angle packaging allows for a more flexible machine setup, accommodating different packaging orientations and maximizing space efficiency. This feature is useful when dealing with various product shapes and sizes.
  • Versatility: Machines like those from Arpac and Douglas Machine offer versatility, allowing businesses to switch between different packaging configurations easily. Whether you’re dealing with single-lane, dual-lane, or right-angle setups, these machines can adapt to your needs.

Top Brands For Pharmaceutical Applications

  • Omega Design, IMA/BFB, Uhlmann, Multipack, and Pester.

Top Brands Beverage and Food:

  • Arpac, PolyPack, KHS/Kisters, Douglas Machine, SMI and Krones.

Automatic shrink bundlers are invaluable in streamlining the packaging process across multiple industries. Understanding their workings and key features helps you select the right equipment for your needs, ensuring efficient and reliable packaging operations. Whether you're in the beverage, pharmaceutical, or food industry, investing in a high-quality shrink bundler can significantly enhance your production line efficiency.