Universal Cutting Mill - variable speed 50-700 rpm

PULVERISETTE 19

OVERVIEW

Variable 50–700 rpm for powerful comminution

Due to the variable rotational speed adjustment in increments of ten between 50 and 700 rpm and a torque of up to 67 Nm enables due to the combination of low cutting rate and extreme cutting forces a very powerful comminution. The low-speed PULVERISETTE 19 comminutes hard, tough-elastic samples with a maximum feed size of 70 x 80 mm and a throughput of 60 l/h. At the same time, it is the ideal solution for all cases where e.g. thermal damage, the loss of highly volatile substances, or an excessively high fine share need to be avoided. One special advantage: Straw, films and similar materials can be fed in up to their full length without additional preparation. And the PULVERISETTE 19 is also ideal for RoHS tests.

WORKING PRINCIPLE

Unique grinding chamber geometry

The sample material is comminuted according to the cutting principle of scissors between the cutting edges of the rotor and the fixed knives in the grinding chamber until the desired final fineness is achieved. Unique grinding chamber geometry: The grinding chamber is designed with minimal dead space and progressive cutting geometry between rotor and fixed knives. The sample material is continuously moved during comminution and cannot settle anywhere. In conjunctions with the special air flow, this is the basis for swift, blockage-free operation and fast cleaning without residue.

Running stabilisation due to flywheel mass

The Universal Cutting Mill PULVERISETTE 19 is equipped with a flywheel mass to stabilize the drive torque. This ensures stable operation even for extreme short-term load, as well as an optimal comminution result.

FEATURES

• Powerful variable rotational speed of 50–700 rpm
• Max. feed size 70 x 80 mm
• Throughput of up to 60 l/h
• Defined final fineness due to interchangeable sieve cassettes 0.2 – 6 mm, (further sieve sizes available)
• Collection vessel 0.25 litres to 60 litres
• Optimised Clean Design for maximum ease of cleaning
• Practical operation directly on the front panel
• Maintenance–free 2.8 kW three-phase motor with frequency converter
• Single-phase versions with maintenance-free three phase frequency converter
• Externally adjustable cutting gap
• Double cone bearing of the rotor for long service life
• Standard funnel for long solids or protected funnel with sample pusher
• Different rotors for multi-functional use
• Rotor knives and fixed knives are exchangeable for long-lasting quality
• Optimum airflow for fast comminution and anti-clogging
• Sample exhaustion with FRITSCH cyclones

SIMPLE CLEANING

Optimised Clean Design for unmatched easy cleaning!

While you are still tightening the screws on other mills, your FRITSCH Cutting Mill is already clean. The instrument hood now consists completely of easy-to-clean stainless steel and the seals of the grinding chamber were completely revised. With just a few simple motions the entire grinding chamber can be opened and rotor and sieve cassette can be removed without tools. The housing and lid can be lifted back completely, and the grinding chamber lid can be completely removed from the hinges.

The result: a completely open, empty grinding chamber with minimised dead space and smooth interior walls for quick and easy cleaning and reliable protection against cross-contamination.

COLD COMMINUTION - EMBRITTLEMENT

Effective comminution with dry ice and liquid nitrogen

Due to the well-conceived instrument design and the materials used, it is no problem to comminute pre-cooled materials or samples embrittled with liquid nitrogen.
The improved breaking behaviour enables efficient comminution also of sticky, tough-elastic or temperature-sensitive materials with dry ice or after previous embrittlement of the sample with liquid nitrogen.

FRITSCH CYCLONES

Optimal sample exhaustion with FRITSCH Cyclone separators

Clean, convenient, cool: Combine your FRITSCH Universal Cutting Mill PULVERISETTE 19 with a FRITSCH Cyclone separator for sample exhaustion. Its strong airflow ensures simple feeding, increases throughput, and reduces the thermal load of the samples.
At the same time, the powerful airflow of the FRITSCH Cyclone separators enables the use of finer sieve cassettes to achieve a higher final fineness – even for materials, which are otherwise difficult to comminute finely.
The result: especially fast and efficient comminution with minimised thermal load and significantly higher throughput – in addition to quick and easy cleaning.
The FRITSCH high-performance Cyclone separator completely made of stainless steel 304 is particularly indispensable in the analytical sector and in the food and pharmaceutical industries, and for the processing of heterogeneous mixtures of material, e.g. in the cement industry. Especially for exhaustion of small sample quantities, we designed the compact FRITSCH small volume Cyclone separator.
We also offer a standard Cyclone separator.

COMFORTABLE OPERATION

Complete operation at the front

The well-designed control panel keeps all functions, including the on/off switch, easily accessible on the instrument's front panel. The rotational speed is set in increments of ten with the plus/minus buttons and shown on the digital display. A special clean-mode button enables the manual turning of the rotor for quick and easy cleaning in between.

EQUIPMENT / ACCESSORIES

Configure your Universal Cutting Mill PULVERISETTE 19 with variable rotational speed of 50– 700 rpm exactly to your specific application

The Universal Cutting Mill PULVERISETTE 19 is delivered without funnel, cutting tool set (consisting of rotors and fixed knives), sieve cassette, collection vessel and stands. Various funnels, collection vessels, rotors with fixed knives, sieve cassettes and stand made of various materials enable you to configure the Universal-Cutting Mill exactly for your application.

FRITSCH AR-APP

Augmented reality (AR) is a technology that superimposes a computer-generated image on an user's view of the real world, thus providing a composite view. In soccer broadcasts, for example, you'll find augmented reality when superimposing distances of free kicks using a circle or a line. We took advantage of this effect and programmed an app for you. Simply download the free-of-charge app in the app store of your mobile device and place our instruments as the PULVERISETTE 19 live in your laboratory.

APPLICATIONS / SOLUTIONS

CANNABIS PLANT MATERIAL PREPARATION FOR EFFICIENT EXTRACTION

The FRITSCH PULVERISETTE 19 is utilized to finely mill cannabis plant material in preparation for SFE processes. The efficient and precise reduction in particle size optimizes oil output and formulation.

NEW APPLICATIONS FOR FRITSCH LABORATORY INSTRUMENTS

The directives 2003/108/EC (WEEE) and 2002/95/EC (RoHS) of the European Union have opened up new applications for FRITSCH Laboratory Equipment.

GRINDING TARPAPER AND ROOFING-BITUMEN

Tarpaper, Roofing-Bitumen…most people are only familiar with these materials in order to seal roofs, but what happens with this material when a building is torn down?

COMMINUTION OF SILICONE RUBBER

Many industries rely heavily on silicone rubber as a basic material. Effective for the sample preparation of the material are the FRITSCH-Mills.

ANALYTICAL DETERMINATION OF CRUDE FIBRE IN ANIMAL FEED

Even animal feed is sold with a declaration about its contents. For quality assurance those substances of contents are continually examined.

PREPARING LEATHER FOR CHEMICAL TESTS

Leather is produced by tanning of skin. Modern technologies of the leather production ensure that the leathers are available contaminant free. FRITSCH Cutting Mills are perfect for the sample preparation of leather for further tests.

CHEMICAL ANALYSIS OF LEATHER

During the processing of leather various chemical analyses have to be performed. Perfect for this task are the FRITSCH Cutting Mills.

MILLING OF LEATHER FOR SAMPLE PREPARATION

Leather is almost prepared in production facilities and also in testing institutes with cutting mills for analytical monitoring. Perfect for this task are the FRITSCH Cutting Mills.

VANADIUM – A METAL WITH UNLIMITED FIELDS OF APPLICATION

Vanadium – a transition metal with special potential. An interesting topic which for example is broadened through the possible uses of vanadium in the energy transition. In this article, the material properties of vanadium are discussed and the sample preparation described.

SAMPLE PREPARATION FOR THE ANALYSIS OF MATURED TIMBER

The matured timber statute dedicates itself with the utilization and application of matured timber. A perfect assistant for the sample preparation are the FRITSCH Cutting Mills.

BIOFUEL - ENGERGY SUPPLIER OF THE FUTURE?

Biofuel like biodiesel, plant oil, ethanol, bio methane or the synthetic biomass-to liquid (BtL) fuels - everyone is talking about them. They are at present the only renewable alternative in the mobility sector and already today make up 6.1 % of the fuel consumption in Germany.

SAMPLE PREPARATION FOR THE ANALYSIS OF SECONDARY FUEL IN CEMENT PLANTS

Secondary fuel can be a very inhomogeneous sample, containing all types of polymers, paper, wood and low fractions of metal. Also recycled wood or parts of automobile tires might be used as secondary fuel. Before using it as fuel in the production of cement, several chemical analyses are necessary as quality control.

YOUR CELL PHONE TURNS INTO DUST

For the sample preparation for the RoHS analysis, several steps are necessary in order to achieve the desired degree of fineness. Optimal here are FRITSCH Mills.

ANALYSIS OF LEAD IN TOYS

Important and always current is the analysis of lead in toys for children. Details about the effective sample comminution.