Abstract: A device for producing nonwoven fabric with a carding machine 3 and a nonwoven fabric layering apparatus 2. A web storage device 5 with a variable storage volume is arranged between the web producer 3 and the nonwoven fabric layering apparatus 2. The web storage device 5 is controlled by the layering belts 8, 9 of the non-woven fabric layering apparatus 2. The rotational speed VB of the layering belts 8, 9 is variable and fluctuates in rhythm with the absolute traveling speed VL of the layering carriage in the inlet area 10. The web storage device 5 is emptied and filled at the same rhythm as the web 4 by control coupling.