Stemma S.R.L. is an Italy-based engineering company that designs and manufactures machinery and turnkey systems for footwear production, with a focus on polyurethane (PU) processing. Its equipment is used to produce soles, midsoles, and related components through direct injection and casting, as well as controlled foaming processes.
The company’s portfolio includes PU injection/pouring machines, foaming units, molds, automation and handling solutions, and process control software aimed at consistent quality and high productivity. Stemma supports multi-density and multi-color configurations and lightweight structures for applications across athletic, casual, and safety footwear. It serves global footwear manufacturers and collaborates across the supply chain to integrate material systems and production technologies into industrial lines.