Smart Retrofit: An Innovative and Sustainable Solution

Recovering old machinery, once it reaches its end of life, allows companies to be sustainable. Several strategies are available for this purpose, both from the point view hardware and software modifications. Especially in industrial sector, these classified as revamping, remanufacturing retrofitting. Machinery retrofitting all used improve equipment performance, efficiency sustainability. Each approach has unique benefits trade-offs, depending on specific needs requirements business. Moreover, according Industry 4.0 principles, is also possible talk about smart retrofitting, involving integration various technologies such sensors, automation systems, Digital Twins, artificial intelligence data analytics control optimise operation machinery. particular, have been widely among retrofit solutions can integrate several innovative aspects dated systems. However, a literature review clarify their meaning characteristics. For reason, paper aims distinguish different find correct definition highlighting relevance, sustainability focusing more Twin