Further Rotor / Beater Mills




Variable Speed Rotor Mill


premium line

Order No.


  • Powerful grinding for particularly fast sample throughput
  • Choice of impact or cutting rotor
  • Particularly good cooling of the grinding material
  • Easiest cleaning due to Clean Design



    Fast pre- and fine-grinding in one instrument

    The FRITSCH Variable Speed Rotor Mill PULVERISETTE 14 premium line offers impact, shearing and cutting comminution in one instrument – with a higher performance, better cooling and is significantly quieter than comparable instruments.
    Its powerful motor is ideal for the particularly fast comminution of soft to medium-hard, brittle as well as fibrous materials and temperature-sensitive samples with an extremely fast sample throughput of up to 15 litres and more per hour, depending on the material and parameter settings. Even particularly hard and fatty materials such as feed pellets can be easily comminuted with the PULVERISETTE 14 premium line. Samples which are difficult to grind or extremely temperature-sensitive (e.g. plastics) can be embrittled with the addition of liquid nitrogen and subsequently ground in the PULVERISETTE 14 premium line.
    The heavy-duty motor and especially durable ceramic bearings ensure a particularly high impact and rotor speed with an extra powerful 22,000 rpm.

    Your advantage: finer results in shorter times. Due to its high performance, the PULVERISETTE 14 premium line is the ideal Variable Speed Rotor Mill for comminution at pilot plant-scale in the plastics industry.


    Impact and shearing

    Inside the Variable Speed Rotor Mill PULVERISETTE 14 premium line, the sample is comminuted by impacting against the ribs of the impact rotor, rotating at high speed and also sheared between the rotor teeth and the inserted sieve ring.

    • Powerful grinding with 22,000 rpm for particularly fast sample throughput
    • Max. feed size < 15 mm, sample throughput of up to 15 l/h and more
    • Final fineness d50 < 40 μm, sieve rings 0.08 – 6 mm
    • Extremely high impact speed of the rotor (111 m/s = 399.6 km/h)
    • Multifunctional with impact or cutting rotor in one instrument
    • Simple, tool-free changing of rotor, collecting vessel, sieve ring, labyrinth disk and -seal
    • Easy cleaning due to Clean Design
    • Efficient cooling of the grinding chamber due to extremely high airflow
    • Highly durable low-wear rotors with cooling fins made of stainless steel
    • Grinding chamber made of stainless steel or PTFE-coated
    • Grinding parts made of stainless steel and pure titanium
    • Maintenance-free three-phase motor with regulated rotor speed 6,000 – 22,000 rpm (max. impact speed 399.6 km/h)
    • High speed stability even under full load
    • Wear-free labyrinth seal between the grinding chamber and drive motor
    • Removable dust filter for convenient cleaning
    • Ergonomic operation with touchscreen
    • USB interface as well as integrated regulation function for the new Vibratory Feeder LABORETTE 24
    • AutoLOCK grinding chamber for incredibly safe operation
    • Significantly better cooling of the sample
    • Pleasantly quiet operation
    • Extensive accessories available – easing your laboratory tasks

    Heavy-duty motor with ceramic bearings

    The heavy-duty motor and especially durable ceramic bearings ensure a particularly high impact and rotor speed with an extra powerful 22,000 rpm.

    Your advantage: finer results in shorter times. The integrated stopwatch function for time recording, e.g. for new samples, is particularly practical. In addition as a system monitoring safety feature, the instrument‘s power consumption and the system temperature are displayed, and a warning is shown in case of overload.


    Ingenious air routing

    The strong airflow produced by the motor, an ingenious air routing, as well as special cooling fins on the rotors further intensify cooling. Your advantage: melting or sticking is greatly reduced, even with temperature-sensitive samples. The cooling function can easily be enhanced further by utilizing the integrated option to connect an exhaust system or a FRITSCH Cyclone separator.


    Fast, residue-free cleaning

    The well-conceived Clean Design of the Variable Speed Rotor Mill PULVERISETTE 14 premium line covers all the areas, which make the cleaning of your mill as easy as possible: All the surfaces are designed to be extremely dirt-resistant and easy to clean, and every surface which comes into contact with the samples can be sterilised. And all the parts that need regular cleaning, like funnel, collecting vessel with lid, rotor, sieve ring and labyrinth disk – each can be removed with a single motion without tools. Even the lid of the instrument can be easily removed for cleaning.


    Temperature gentle fine grinding with the FRITSCH Cyclone separators

    FRITSCH Cyclone separators for sample exhaustion: Their powerful airflow ensures simple feeding and faster throughput. Due to faster operation and the additional stronger cooling, the thermal load of the sample materials is minimized, so that temperature-sensitive samples can also be ground without any problems. The powerful airflow also enables the use of finer sieve rings to achieve a higher final fineness – even for materials, which are otherwise difficult to grind finely, such as electrostatically-charged plastics or powder coatings. The ground sample is drawn directly into the screwed-on sample glass, in which it can be transported, stored and easily removed for analysis. FRITSCH offers two models to match your application needs:

    FRITSCH high-performance Cyclone separator: The compact high-performance Cyclone separator, which is made completely out of stainless steel 304 is in combination with the exhaust system, particularly indispensable in the analytical sector and the food and pharmaceutical industries. Due to its high surface quality, it offers enhanced resistance to corrosive media such as alkalis and acids – and is especially easy to clean with a wide range of possible cleaning agents, without leaving any residues. The Cyclone separator can also be fully dismantled, meaning that it can be completely emptied, flooded and sterilized, providing reliable protection against cross contamination.

    FRITSCH small volume Cyclone separator: We designed the compact FRITSCH small volume Cyclone separator especially for exhaustion of small sample quantities. It is made of plastic, can be dismantled completely and cleaned in a dishwasher for reliably preventing contaminations. The comminuted sample is collected in a screwed-on sample glass of 250 or 500 ml volume.
    The small volume Cyclone separator can be combined with the exhaust system, which can be ordered along, or can also be used with the supplied fine-dust filter 80-100 µm for passive utilisation.

    Details about the FRITSCH Cyclones

  • Cutting with the Pulverisette 14 premium line

    Multifunctional due impact or cutting rotor

    With the cutting rotor made of stainless steel the PULVERISETTE 14 premium line is ideal for fast, efficient comminution of fibrous materials and plastics.
    The cutting rotor made of hardmetal tungsten carbide is especially suitable for comminution of hard-tough materials due to the combination of impact and cutting forces.
    Just order the cutting insert of the desired material consisting of a cutting rotor with straight cutting edges and cooling fins, collecting vessel, labyrinth disk and sieve shells holder with fixed knifes. Select additionally a set sieve shells with trapezoidal or round perforation to determine the desired final fineness. The materials are then comminuted by cutting and shearing.
    The PULVERISETTE 14 premium line will detect the labyrinth disk and automatically operate in an optimised mode with up to 15,000 rpm. And the use of a FRITSCH Cyclone separator with further improve throughput and cooling and is indispensable for finer mesh sizes.


    Configure your Variable Speed Rotor Mill PULVERISETTE 14 premium line exactly to your specific application

    The Centrifugal Mill PULVERISETTE 14 premium line includes a collecting vessel and lid. In order to operate the mill you must also order a rotor, a sieve ring – allowing you to select your grinding tools according to your specific application! To ensure this an extensive accessory programme for the PULVERISETTE 14 premium line is available with rotors and sieve rings in various designs and materials, as well as additional accessories. Select exactly what you need.

    View extensive accessories

    For automatic feeding, directly controlled by and precisely matched to the mill, the new FRITSCH Vibratory Feeder LABORETTE 24 always ensures the correct feed rate – ideal for slowly feeding small or smallest material quantities for grinding larger quantities.

    View accessories for automatic sample feeding

Order No.
Janine Allkofer
FRITSCH GmbH - Milling and Sizing
Industriestrasse 8
55743 Idar-Oberstein
Phone +49 67 84 70 0

Grinding report database

Test now

Individual sample grinding

Send us your sample. We conduct a sample grinding and recommend the right device for your application.