For fast, effective comminution of soft to medium-hard, brittle and fibrous materials and temperature-sensitive samples.

Max. task size: (depending on the material)	10 mm
Max. throughput: (depending on material and sieve size)	5 l/h
Final fineness: (depending on the sieve insert)	0.08 - 6 mm
Rotor speed:	6,000 - 20,000 rpm

scope
Soft materials such as plants, wood, roots, leaves, needles, spices, textiles, leather, chemicals, food, grain, pulp, fillers, chalk, kaolin, coal, and soil (excluding stones). Medium-hard materials such as pharmaceuticals, coated tablets, tablets, fertilizers, pellets, and animal feed.
Temperature-sensitive samples can be ground because the fast, effective grinding reduces the thermal stress on the material being ground. Difficult-to-grind samples such as styrenes, polyesters, synthetic resins, films, PVC, PP, and PE can be embrittled by adding liquid nitrogen, for example, and then ground to analytical fineness. The PULVERISETTE 14 high-speed rotor mill is also used for sample preparation in accordance with RoHS regulations.

Working method
A very fast-running rotor with molded ribs crushes the sample through impact. In addition, the sharp-edged teeth, together with the inserted sieve, cut the sample through shear. In the final crushing stage, the sample is subjected to friction between the rotor and sieve.

The features at a glance

Exchange system consisting of rotor, collecting vessel, sieve and labyrinth seal, completely removable and reusable without tools
Controlled rotor speed (6,000-20,000 rpm)
Optimal external cooling of the grinding chamber with extremely high air flow
Heavy-duty, wear-free rotor made of hardened stainless steel
Wear-free labyrinth seal between grinding chamber and drive motor
High speed stability even under full load
Conversion kit for iron-free grinding

equipment
The PULVERISETTE 14 rotor speed mill comes standard with a collecting vessel and lid. Impact rotors and sieve rings are available in various designs and materials and can be ordered as accessories.
A WC-coated sieve ring with a 0.25mm trapezoidal hole is also available.

FRITSCH

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