Stemma Srl. Plus2, the new system for dual density injectionSpecialised for the last 20-plus years in the development of technologies and manufacturing systems and machines for the moulding of polyurethane products, Stemma presents the innovative double-ring “Plus2” moulding system.

Oct 10, 2018
Posted in: , News , Safety




The newly patented “Plus2” system has been conceived and developed by updating the classic mould-holder for direct injection onto uppers. With a normal injection cycle onto the upper, it also allows for the production of footwear with a rubber sole and a midsole in two different polyurethane densities. Thus, this system allows the weight of the sole to be reduced, creating areas of graduated density to improve the comfort of the foot and the shock of its impact with the grand.


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