The airlay unit mod. f is a purely aerodynamic forming system. It is the preliminary batt forming and feeding system for the following airlay carding units p or s, c or d. 

Thanks to the weighing system in exit, PID control and possibility to adjust the formation chamber, the airlay f can also be used as an independent airlay forming system, bypassing the following airlay carding sections (when present).

Having no opening elements, the airlay unit f is suitable to form nonwovens from non-fibrous raw materials, such as foam pieces or fiber balls.