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Broyeurs à billes à haute énergie

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.

Broyeurs à billes à haute énergie

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).

Le broyeur à billes haute performance Emax, le plus puissant de la gamme RETSCH, atteint l'apport d'énergie le plus élevé avec des vitesses de rotation allant jusqu'à 2000 tr/min, ce qui se traduit par une accélération de 76 g. En combinaison avec le principe de fonctionnement unique et le design des bols de broyage, cela permet d'obtenir une répartition exceptionnellement étroite de la taille des particules, des temps de broyage ou de réaction courts ainsi que des particules ultrafines. De plus, les mouvements de billes avec impact et frottement simultanés améliorent le mélange de l'échantillon. Le broyeur à billes planétaire PM 300 dispose d'une grande roue solaire et d'une vitesse de rotation maximale de 800 min-1, atteignant des accélérations allant jusqu'à 64,4 g. Combiné à l'option permettant d'utiliser quatre petits bols de broyage empilables d'une taille de 12 à 80 ml pour l'échelle du laboratoire ou deux bols d'une taille allant jusqu'à 500 ml à des fins d'upscaling, ce broyeur à billes planétaire convient parfaitement aux applications de recherche en mécanochimie. Le modèle PM 400 à quatre stations de broyage est disponible avec des rapports de vitesse de 1:-2,5 et 1:-3, ce qui se traduit par un apport d'énergie élevé et s'avère avantageux pour les applications mécanochimiques. Les vibro-broyeurs MM 500 nano et MM 500 vario fonctionnent à une fréquence maximale élevée de 35 Hz, ce qui entraîne une nette accélération. Cela raccourcit le processus de broyage, améliore le degré de broyage et augmente l'apport d'énergie pour les réactions mécanochimiques.

Applications en mécanochimie - Broyeur planétaire à billes PM 300

Accélération en fonction de la vitesse dans différents broyeurs planétaires à billes

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.

Broyeurs à billes à haute énergie - 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.