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Vysoko výkonné guľové mlyny

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.

Vysoko výkonné guľové mlyny

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).

Vysoko výkonný guľový mlyn Emax, najvýkonnejší v portfóliu spoločnosti RETSCH, dosahuje najvyšší príkon energie s otáčkami až do 2000 ot/min, čo vedie k zrýchleniu 76 g. To v kombinácii s jedinečným princípom funkcie a konštrukciou mlecej nádoby vytvára výnimočne úzku distribúciu veľkosti častíc, minimalizuje čas mletia alebo reakcie a vytvára veľmi jemné častice. Okrem toho jeho konštrukcia zabezpečuje pohyb guľôčok so súčasným nárazom a trením, čo zvyšuje účinok miešania.

Planetový guľový mlyn PM 300 je vybavený veľkým slnečným kolesom a maximálnou rýchlosťou 800 otáčok za minútu, pričom dosahuje zrýchlenie až 64,4 g. Spolu s možnosťou použitia štyroch malých, stohovateľných mlecích nádob s veľkosťou 12 až 80 ml na operácie v malom rozsahu alebo dvoch nádob s veľkosťou až 500 ml na účely zväčšenia je tento model veľmi vhodný na výskumné aplikácie v oblasti mechanochémie.

Model PM 400 so štyrmi mlecími stanicami je k dispozícii s pomerom otáčok 1:-2,5 a 1:-3, čo vedie k vysokému príkonu energie, ktorý je zvyčajne výhodný pre mechanochemické aplikácie.

Oscilačné mlyny MM 500 nano a MM 500 vario pracujú pri vysokej maximálnej frekvencii 35 Hz, čo vedie k výraznému zrýchleniu. To urýchľuje proces mletia, zlepšuje jemnosť častíc a zvyšuje príkon energie pre mechanochemické reakcie.

Aplikácie v mechanochémii - Planetový guľový mlyn PM 300

Dosiahnuteľné zrýchlenie v rôznych planetových guľových mlynoch v závislosti od nastavenia otáčok

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.

Vysoko výkonné guľové mlyny - 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.