Stemma’s commitment to research results in some of the most advanced technologies available on the market today, intended for the automated footwear production, boasting an innovative design and in step with the new sustainability challenges
“We are pleased to be back at the fair, especially for the great interest the audience showed towards us,” states the engineer Stefano Pellizzari at Simac Tanning Tech. “Our greatest wish for the next year is a more favorable situation that will allow us to meet also the Asian, US and South American buyers, who could not come to this edition. Our reference market is no longer just Italian and European!”
Stemma, a made-in-Italy company producing molding systems for polyurethane shoes and soles, is an example of a dynamic, lively company, one of the few presenting important innovations at Simac. “In 2020 we recorded a decrease in turnover equal to about 30% compared to the previous year, but in 2021 the company’s goal is to return to 2019 figures. During this period, we faced penalizing problems such as the inability to install machines in some foreign countries due to travel limitations. However, the innovation process has not stopped” continues Pellizzari. At Simac, the company based in Cornuda, in the province of Treviso, premiered Signum 20, an innovative machine for molding polyurethane boots that takes advantage of spray technology rather than traditional injection technology. The RPU Spray Technology features some essential advantages: with an effective cycle time of less than 30 seconds it guarantees an increase in productivity of about 30% compared to the traditional process.
The open-mold processing also results in ultra-light items featuring extremely thin thicknesses; moreover, the surface definition is so perfect that technical and specific finishes can be carried out easily. Color distribution uniformity along with the possibility of using a wide range of linings are other aspects of this new proposal that already arouses the interest of important brands in the sector.
At the fair, all previously launched technologies were also confirmed to be appealing, in particular the V.A.R. system, a powerful tool to support the operator for greater efficiency of polyurethane molding systems. Thanks to a constantly updated database, the V.A.R. carries out a constant control of the injection process and provides immediate indications in the event of operating drifts. It therefore allows rapid identification of the causes of the problem, facilitating operator intervention. “Automation can give a significant contribution to sustainability by ensuring proximity productions and processes that generate less waste. However, I believe – concludes Pellizzari – that in order to achieve significant results in terms of sustainability, we must first of all aim for more responsible behavior, purchasing durable products in order to reduce leftovers. Disposable is no longer sustainable and even less tolerable.”