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Shrink bundlers are designed to wrap a single piece or bundle of product in heat shrinkable plastic film. Shrink bundlers are designed to form the plastic wrap around the...

Shrink bundlers are designed to wrap a single piece or bundle of product in heat shrinkable plastic film. Shrink bundlers are designed to form the plastic wrap around the product or bundle using two rolls or plastic film (with only one notable exception). Shrink bundlers create bundles or product that have open ends know as bulls-eyes on each side of the package. By using film that is much wider than the bundle on a shrink bundler, the size of the bulls-eye can be reduced. By using a film that is narrower than the bundle on a shrink bundler, the bundle of product is wrapped by a band of plastic.

Shrink bundlers take in product and pass the product bundle through a barrier of film that is created by heat sealing the film ends of two rolls of plastic film. As the bundle passes through the film barrier, the top roll of the film wraps around the top of the bundle and the bottom roll of the film wraps around the bottom of the bundle. After the container has passes the heat sealing station, the seal jaws on the shrink bundler come together again to seal the films together after the bundle and to separate the wrapped bundle from the remainder of the film. This action leaves a film barrier created by heat sealing the ends of the film together, which allows the next shrink bundle to pass through the film barrier. The shrink bundle then passes through a heat shrink tunnel to shrink the film around the bundle of product.