A stationary housing (3) has an interior space (5) and at least one interior wall (7). At least one sawblade (9) is rotatable with respect to the stationary housing (3), and has a periphery (12) provided with a plurality of cutting teeth (15) and a plurality of collecting notches (17). An inlet opening (19) for feeding material to the interior space (5), and an outlet opening (21) for dispatching pulverized material from the interior space (5) are provided in the interior wall (7) of the housing (3), with a plurality of recesses (23) facing the periphery (12) of the sawblade (9) receiving the cut material from collecting notches (17) of the sawblade (9), and reverting the cut material to the periphery (12) of the sawblade (9) so that the material is cut multiple times before dispatch. The interior wall (7) surrounds a main part of the periphery (12) of the sawblade (9), and the inlet opening (19) and the outlet opening (21) are in direct communication with the interior space (5) so that the material enters and leaves the interior space (5) during one revolution of the sawblade (9).