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| 02.10.2007 | Lesedauer: ca. 2 Minuten |
  
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Sacmi Imola: Compression machine to produce PET preforms
  PAM is the name of the innovative system, acronym of Preform Advanced Moulding. The 48 cavities prototype machine is currently running at 27.000 pref/h, producing a 23g CSD preform with 28PCO neck finish. As for closure manufacturing, compression technology grants several advantages compared to injection process. Anzeige The continuous and oriented exit of preforms leads to the possibility of in-line quality control and blowing. The stable weight consistency of the compression process has largely been proved by closures manufacturing: the same applies to preforms production benefits of the long Sacmi experience. Beside an obvious energy saving due to a lower PET melting temperature, preforms by compression require less heating in the blowing phase because the crystals of material are differently oriented. A PET bottle coming from a compression moulded preform has better performances than a coming from a same-weight injection moulded preform, due to an higher homogeneity of the material distribution. Furthermore preforms by compression can be stretched also in the bottom of the bottle, as injection gate is not there. Looking at the complete PET bottle production process, further competitive and economic advantages can be developed, as this is a young technology, destined to a fast evolution.
K 2007, Düsseldorf, 24.-31. October 2007, Hall 15, Stand A05 |
Sacmi Imola S.C., Imola, Italy
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