Brampton, Ontario, Canada: StackTeck Systems Ltd., a global manufacturer of multi-cavity, high-volume production molds for thin-wall packaging, closures, medical, and mold bases, will be showcasing its first injection compression mold at the NPE 2018.
In the Ilsemann booth W-1691, NPE attendees can see a 4 cavity 409 round injection compression In Mold Labeling (IML) lid mold with labels from Verstraete. The system also features an Ilsemann IML automation system operating with a 240T Arburg machine. This injection compression lid mold has been built to demonstrate light-weighting potential for a known thinwall IML lid. Compared to the conventional injection molding process, the lid panel thickness was reduced from 0.0208 inches to 0.0130 inches (37% thinner) resulting in a part weight reduction from 6.35 grams to 4.67 grams (26% lighter). This part weight improvement has been achieved, without changing the lid skirt geometry. The mechanical sealing properties of the lid on the container rim remain the same.
Injection compression allows the molding of flat parts with minimal residual stresses in the part, making it very well suited to molding light-weight lids without inducing warpage into the final molded article.
