What is said to be the first aluminum mold for heat-set PET bottles has been developed as an alternative to stainless steel. The F300 aluminum mold, developed jointly by Sidel Inc., Norcross, Ga., and bottle maker Graham Packaging Co., York, Pa., can withstand temperatures up to 180 C for production of PET bottles for hot-fill or pasteurized drinks. A new aluminum alloy containing silver is more heat resistant than standard aluminum. With one-third the weight of stainless steel, the mold boosts machine output and reduces changeover time. Graham is using the molds at several of its U.S. plants. "We've seen an increase in output with the new molds," said Bob Johnston, senior manager of global mold and tooling development. "We are also seeing a better return on investment and lower costs to switch bottle shapes." Aluminum is also said to be easier to shape than stainless steel so molds can be produced two weeks faster, says Sidel. Tel: (678) 221-3000 . www.sidel.com
5600 Sun Ct Norcross, GA 30092
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