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Vysoce výkonné kulové mlýny

RETSCH High Energy Ball Mills are designed for efficiency and precision in research & development as well as quality control applications. Our high energy ball mills redefine the way materials are processed, offering unmatched speed, performance, and versatility. In fields such as chemistry, pharmaceuticals, materials science / mechanochemistry, or environmental analysis, our mills are engineered to meet the most demanding needs.

Vysoce výkonné kulové mlýny

High energy input significantly enhances grinding efficiency, leading to finer and more homogeneous particle size distributions. This is crucial in applications where the quality of the final product relies on its particle size and distribution. In challenging applications like mechanochemistry, the energy input, along with the action mode, temperature, ball mill size, and mixing effects, can influence the reaction outcome. To facilitate experiments across a spectrum of speeds, from moderate to high energy, four RETSCH models are particularly noteworthy: PM 300, Emax, MM 500 nano, and MM 500 vario. The acceleration these mills can achieve depends on the sun wheel size and maximum speed (planetary ball mills) or amplitude and frequency (mixer mills).

Vysoce výkonný kulový mlýn Emax, nejvýkonnější v portfoliu společnosti RETSCH, dosahuje nejvyššího příkonu energie při otáčkách až 2000 ot/min, což má za následek zrychlení 76 g. To v kombinaci s jedinečným principem funkce a konstrukcí mlecí nádoby vytváří mimořádně úzké rozdělení velikosti částic, minimalizuje dobu mletí nebo reakce a vytváří ultrajemné částice. Jeho konstrukce navíc zajišťuje pohyb kuliček se současným nárazem a třením, což zvyšuje míchací efekt.

Planetový kulový mlýn PM 300 je vybaven velkým slunečním kolem a maximální rychlostí 800 otáček za minutu, přičemž dosahuje zrychlení až 64,4 g. Spolu s možností použití čtyř malých, na sebe naskládaných mlecích nádob o velikosti 12 až 80 ml pro operace v malém měřítku nebo dvou nádob o velikosti až 500 ml pro účely zvětšení, je tento model velmi vhodný pro výzkumné aplikace v mechanochemii.

Model PM 400 se čtyřmi mlecími stanicemi je k dispozici s poměrem otáček 1:-2,5 a 1:-3, což vede k vysokému energetickému příkonu, který je pro mechanochemické aplikace obvykle výhodný.

Oscilační mlýny MM 500 nano a MM 500 vario pracují s vysokou maximální frekvencí 35 Hz, což vede k výraznému zrychlení. To urychluje proces mletí, zlepšuje jemnost částic a zvyšuje příkon energie pro mechanochemické reakce.

Aplikace v mechanochemii - Planetový kulový mlýn PM 300

Dosažitelné zrychlení v různých planetových kulových mlýnech v závislosti na nastavení otáček

Benefits of High Energy Ball Mills

  • Efficiency: High energy ball mills reduce processing time significantly, thanks to their high speed and effective grinding mechanisms.
  • Uniform Particle Size: They produce finer and more uniform particle sizes than other mills, which can be crucial for high-quality research outcomes.
  • Versatility: Easy switching between dry and wet grinding; adaptation to different materials and applications with a wide range of compatible grinding jar materials and sizes.
  • Reproducibility: Consistent results and reproducible parameters ensure reliability in experiments and processes.
  • User-Friendly: Designed with the user in mind, our mills are easy to operate and maintain, making your work as smooth and efficient as possible.

At RETSCH, we are committed to advancing your materials processing capabilities. Our high energy ball mills are more than just machines; they are tools that open new possibilities for scientific discovery and innovation.

Top applications include

Materials Science
Fabricating alloys, composites, and nanostructured materials with unique mechanical, electrical, or optical properties.

Mechanochemistry
Establishing solvent-free processes in chemistry to generate new substances through chemical reactions.

Environmental Analysis
Preparing samples for testing contaminants or studying soil and plant material characteristics.

Pharmaceuticals
Developing new drugs by milling active ingredients to increase bioavailability.

Nanotechnology
Creating particles of nano-size for advanced material properties.

Vysoce výkonné kulové mlýny - FAQ

Why is a high energy input required?

A high energy input is beneficial for mechanochemical applications as it helps to increase the yield; for very hard samples to crush them more efficiently; for research in general as it provides more options to try out different settings.

Is it always beneficial to work at maximum speed to increase the energy input?

No, it strongly depends on the sample material and application whether a very high energy input is beneficial. For some materials it may lead to undesired caking effects due to the sample getting warm. A warming effect also needs to be avoided for temperature-sensitive materials.

Is cooling required for high energy ball mills?

Yes, cooling helps to compensate the warming effects. Another option is working with cooling breaks.