Modified micronization device and use thereof

Device (1) for the micronization of substances comprising two rotors (3) driven in a direction (É) opposite to each other, each rotor (3) carrying at least one row of multiple hitting elements (5, 7) forming a ring (9, 11), said rings (9, 11) being arranged concentrically in, the rings (9, 11) of the different rotors (3) engaging alternately with one another, the hitting elements (5, 7) being suitably arranged to provide transportation of the substance from inside the rings (3) to the outside by effecting a suitable airflow, at least two, directly adjoining rings (9, 11) carrying hitting elements (5, 7) with different foot print wherein at least a first ring (9) is equipped with trapezoidal hitting elements (5) with trapezoidal foot print and at least one other ring (11), directly adjoining the first ring (9) is equipped with triangular hitting elements (7) with triangular foot print.