Variable-Speed Rotor Mill PULVERISETTE 14 Premium Line. FRITSCH, Germany

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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 (optional), 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, but particularly to media containing chlorides – 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 Standard Cyclone separator: The larger Standard Cyclone separator offers in addition to all the above benefits such as faster throughput and reduced thermal load, for all standard grinding tasks, an ultra-fine HEPA dust filter, which keeps fine dust inside the Cyclone separator.

Multifunctional due impact or cutting rotor

With the cutting rotor the PULVERISETTE 14 premium line is ideal for fast, efficient pre-grinding of fibrous materials and plastics: Simply use the cutting insert consisting of a cutting rotor with straight cutting edges and cooling fins, collecting vessel, labyrinth disk and sieve shells holder with fixed knifes. – and the materials are ground by cutting and shearing forces. The PULVERISETTE 14 premium line will detect the labyrinth disk and automatically operate in an optimised mode with up to 10,000 rpm. The desired final fineness will also be determined here by the selected sieve ring with trapezoidal or round perforation. And the use of a FRITSCH Cyclone separator will further improve throughput and cooling.

Configure your Variable Speed Rotor Mill PULVERISETTE 14 premium lineexactly 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.

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.