Brampton, Ontario, Canada: StackTeck Systems Ltd., a global manufacturer of multi-cavity, high-volume production molds for thinwall packaging, closures, personal care and medical products, will display their next generation TRIM technology in their booth W-1375 at the NPE show in Orlando.
Thinwall parts made using StackTeck’s proprietary TRIM technology can be made with ultra-thin panels covering 90% of the overall surface area of the part. Conventional thinwall part designs molded in high cavitation system are typically limited to an L/T ratio (Length of flow to average Thickness) of 300 or less, however by using TRIM the ultra-thin panels can be molded at a thickness corresponding to an L/T of 600. Pushed to the limit, TRIM technology has been demonstrated to lightweight conventional thinwall designs by 30-40% of part weight.
According to Henry Rozema, StackTeck’s Vice President of Sales and Marketing, “It’s been an exciting development for us, we had our first commercial TRIM application for a round container mold that we announced in 2014. Our customer SriThai Superware ordered new core components for an existing mold, and they were able to produce the part in the original injection molding machine, but with a much smaller shot size. In that case they realized 36% lightweighting, while the top load strength of the part declined by only 10%. So the project was technically a homerun, with StackTeck and SriThai winning an award from the IMDA for Best Thinwall Packaging.”
The display at NPE is a single cavity mold for a 32 oz. tamper evident rectangular container, which has ultra-thinwall panels covering 90% of the sidewall and bottom areas. The average L/T ratio of the overall part is 520, and IML samples will be on display as well.
TRIM technology can be used to lightweight thinwall injection molded parts to match conventional thermoformed part weights, while maintaining traditional features of injection molded parts, such as bale lugs, tamper evident break tabs, and other tamper evident features.
StackTeck thanks Verstraete and Braskem for providing labels and resin for the production of samples that will be on display at the show, samples were molded using Braskem’s TI6800WV (80 MFI impact copolymer PP).
StackTeck not only designs and builds the molds, but has extensive capabilities such as in-house mold qualification, process validation and full system integration (robotics and automation), with the ability to perform system evaluations in house using state-of-the-art injection molding machines. The company also offers in-house training of its customers in the set-up, operation and maintenance of these high-tech molding systems.