This packaging system is formatted to produce packs with excellent aesthetics and "leak proof”. The FS 400 is equipped with a system that stretches the film and forms a tight bag around the product, while an aspiration system evacuates the excess of air from the pack before the seals are created (avoiding the need for any holes in the pack for air evacuation during the shrinking process). The seals are created by a longitudinal trim seal system and a hot bar seal jaw that produces really narrow seals.

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