Using only pneumatic (-thermal, in case of the RINA JET Ringdryer and Spraydryer) parameters which means no rotating parts and no mechanical forces – are the main characteristics describing the working principles of these machines. The RINA Jet Turbo Flash Dryer is adequate for pumpable slurries as well as humid solids. Optimisation of energy consumption with maximum throughput and of course constant quality - even with variations at inlet, is taken for granted.