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Filling and retorting (sidebar)

Upstream from the robotic case packing and palletizing operation at Fresenius, pouches are filled and sent through a retort operation. As might be expected, the systems involved are every bit as sophisticated as those responsible for secondary packaging.

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Pouch material is PET/SiOX/polypropylene, which gives the product a one-year shelf life. That’s more than enough since the pouches are distributed only through the professional health care chain, not through retailers.

Filling starts with a rotary pouch filler that sits in an overpressured clean room. Premade spouted pouches are hand-loaded onto twin infeed conveyors that bring the pouches forward in a shingled format. Vacuum grippers pick pouches and advance them to a point where mechanized grippers can grab them.

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