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Form fill and seal packaging machine with replaceable forming neck

Image Number 3 for United States Patent #6634158.

A machine for forming reclosable packaging includes a removable forming neck which can be replaced with different forming necks of various diameters. The machine has a mechanism (40) for attaching closure strips (P) onto a film that have lengths up to half the circumference of the smallest forming neck (10), and a mechanism (60)" that makes the transverse welds (61, 62) along a length equal to at least equal half the circumference of the largest forming neck (10).

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