Pirelli & C.

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The TSM process

TSM (Twin Screw Mixing) is the new process for preparation of compounds and is the result of a combination of traditional batch mixing with continuous CCM technology. It offers high levels of quality, reliability and efficiency, developed specifically for the production of compounds used in the new Pirelli green performance tyres. This technology makes it possible to realise major improvements in terms of compound uniformity, reduced dispersal of ingredients and a 30% reduction in energy consumption as compared with traditional techniques.

The PTSM process has optimised the silanization reaction of silica based compounds (“green” tyres). This has made it possible to significantly reduce tyre rolling resistance, which directly translates into vehicle fuel savings. The TSM technology streamlines production efficiency, guaranteeing productivity increases of at least 300% as compared with the previous continuous CCM technology.

During execution of the PTSM project, special attention was also dedicated to definition of the layouts, in order to significantly limit the final size of the plants and reduce their industrial impact.

In 2009, PTSM project activities concentrated on development of the mixing process on pilot plants, product tests and the design of new industrial plants.