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 Cutting mills are used in sample preparation, particularly for elastic, fibrous or soft/tough materials. Where the performance demands are very high or the material is particularly problematical Fritsch suggest using the universal cutting mill Pulverisette 19 in addition to the standard cutting mill Pulverisette 15. In
the standard configuration, the Pulverisette 19 is supplied with a V-shaped cutting rotor; its cutting geometry results in fewer blockages even when larger or harder materials are processed than with a parallel cutting rotor. It also “draws in” the material better, forcing the material through the cutting gap better than
a disc rotor. Fritsch also offer rotors with parallel cutting and disc geometry, however only as special rotors for very specific and limited applications. They are the sole provider of V-shaped cutting rotors.
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