9. Vacuum sealing
For production rates lower than those of thermoformers, e.g. for semi-industrial installations such as butcheries or wholesale delicatessens, there are vacuum or protective gas sealers, which work from 2 to 8 cycles/min, with rigid trays.
Tool movement is automatic; sealing plates can be equipped with either cold zones for atmosphere packaging, or heated zones for skin-type packaging. Trays are ejected automatically at the end of the cycle. The lower tool pulls the film.
The film is fed by grippers, independently of the tooling movement. The film feed pitch is adjustable according to a time delay set by a printed spot detected by fiber optics. The operator can change format in just a few minutes.
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Vacuum sealing
Blister machines
Bibliography
Reference works
Manufacturers, constructors
This list is not exhaustive.
We would like to thank the manufacturers who provided us with information and illustrations of their equipment.
The list below is neither exhaustive nor restrictive; its sole purpose is to help readers find the machine manufacturers they are looking for.
Packaging machines for bottled liquids
Berchi...
Organizations
Packaging Machinery Manufacturers Institute (PMMI)
Laboratoire national de métrologie et d'essais (LNE), Packaging market
Exhibitions
(non-exhaustive list)
Emballage World Packaging Exhibition
November 20-24, 2006
Paris-Nord Villepinte (France)
FachPack 2006
September 26-28, 2006
Nuremberg (Germany)
Other trade shows in Italy and the USA in 2006
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