2 New/demonstration Stainless Steel Dryers with 8 Modules for Drying Sludge (Agri-food, Biomass, Digestate, Chicken Manure, etc.). Model Physis 848i. Used only for demonstration purposes and recently built (2019 and 2022). The technical data sheet is available from the following web page: https://www.kapa-engineering.com/848_data_it.html The machines can be powered by a biomass boiler built by us, which can, in turn, be self-powered with the same dry product obtained from drying (if with adequate heating power) or by other suitable thermal sources.