for continuous size reduction within the medium particle size range

Idar-Oberstein, (PresseBox) - Our recommendation for all processing laboratories with a continuous delivery of brittle to very hard materials for batch or continuous fine grinding. The maximum feed particle size is approx. 20 mm edge length. The fineness attainable (d50) is down to approx. 12 mm (largest gap width) or 0.1 mm (smallest gap width).

The maximum throughput of 150 kg/h depends on the gap setting and the hardness of the sample. The relatively large throughput enables it to be used in the pilot scale or in the small size production, for example: slag-disintegration for the reclamation of precious metals.

Typical fields of application:
Mining and steel industries: Ores, coal, coke, slags
Ceramics: Steatite, sintered ceramics, electrotechnical porcelain, fire-proof clay
Rocks and soils: Bauxite, slags, quartz, clinker, gypsum, chalk
Glass: Frits, glass types, raw materials
Soil research: Dried soil samples, sewage sludge, hydrological sediments, drilling cores

Method of operation:
The material to be ground is crushed between two counteracting grinding disks with course radial toothing on the inside as a result of compressive and shearing stresses. The staged toothing means that the material is preground in the inner chamber of the grinding disks before being finely ground in the outer chamber.
The gap width between the two grinding disks is set from the outside – also during operation – and determines the fineness of the end product.

Features of performance:
- reproducible grinding results through accurate gap setting (exactly 0.1 mm)
- precision adjustment for setting gap
- sight glass for checking gap width
- centrally located toggle-type fastener for grinding chamber
- divided, hinged grinding chamber
- 4 different materials for grinding disks, to ensure that contamination of the samples through abrasion of the grinding elements is avoided during processing.
- grinding disks easily accessed and replaced
- life expectancy of grinding disks can be doubled by changing the rotational direction of the motor
- simple cleaning and dust-free grinding due to dust exhauster connection
- continuous fine grinding from 85 mm to 0.1 mm in a single process through combination with the Jaw Crusher PULVERISETTE 1
- can be adjusted to individual throughput requests (optional conversion)

Technical Data PULVERISETTE 13
max. feed particle size: 20 mm
Throughput : 150 kg/h
Final fineness: 0.1 – 12 mm
Rotational speed of the grinding disk: 439 rpm

Fritsch GmbH

FRITSCH: Your specialist in the processing laboratory

FRITSCH is the world-wide leading manufacturer of instruments for sample preparation and particle size analysis in the laboratory. Since 87 years now, the company is concentrating on the three product groups and identified with the brand names of PULVERISETTE, ANALYSETTE and LABORETTE in research and industrial laboratories. The FRITSCH name is synonymous with technical competence and economical efficiency in all matters in the field of

milling - particle sizing - dividing

Because FRITSCH operates throughout the world, they have the unique advantage of vast experience in a wide variety of scientific disciplines which enables them to offer constructive solutions to ease problem solving. FRITSCH laboratory instruments ensure proven, extreme longevity, highest quality and innovative technology in combination with simple operation.

Here a short view of the FRITSCH instrument range:

Mills for analytical sample preparation
FRITSCH offers an entire range of instruments for crushing, grinding, fine-milling, mixing and homogenising of hard-brittle, fibrous, elastic to soft materials dry or in suspension. The FRITSCH variety of grinding mills includes different ball mills, planetary ball mills, cutting mills, rotor mills, jaw crushers enables an optimal adjustment of the grinding process to the sample material and the following analyse.
Show us the sample, which you can’t manage to grind and we’ll show you the instrument which can do it!

Sieve Shakers and Laser Particle Sizers for particle size determination
FRITSCH with their vast experience in the particle sizing field offers Sieve Shakers as well as Laser Particle Sizers in different version.
FRITSCH offers due to its equipment varieties for each special use and application a particle size measuring instrument, which uses the most modern laser technology or the well-tried and reliable sieving method and this with an unbeatable price-to-performance ratio.

Laboratory instruments for analytical sample handling
The FRITSCH instrument range also includes sample divider and feeder, because representative sample dividing of dry samples or suspension as well as controlled and uniform sample feeding for mills and other instruments are basic conditions for reliable and precise analysis.

In addition to the complete programme of laboratory instruments, FRITSCH also offers a comprehensive range of services with Workshops, product presentations with the FRITSCH-Mobile laboratory bus on your door step, test milling or particle size analysis of your sample at no charge and much more.

Please use our instrument search engine and our grinding report data base on the FRITSCH-Homepage under www.fritsch.de – sample preparation – solutions. Here you will find your suitable instrument as well as a comparative grinding report comparable with your application.

Make use of our decades of experience. We can facilitate your work substantially.

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