The High Energy Ball Mill of the Retsch GmbH is successfully deployed in almost all areas of
industry and research, especially where there are high demands regarding cleanliness, speed,
fineness and reproducibility.
Only grinding sets from Retsch GmbH may be used. Dry and wet grinding may be conducted.
Grinding with solvents is permitted. In this case please note the additional comments in Chapter
"Wet Grinding with Highly Flammable Materials".
Handling foodstuffs, pharmaceuticals and cosmetic products
Products processed
− Foodstuffs, pharmaceuticals and cosmetic products that have been
processed on the device may no longer be eaten, used or put into
circulation,.
• Dispose of these substances according to applicable directives.
Range of application of the device
Long-term operation
− This laboratory device is designed for eight-hour single-shift operation
with a duty cycle of 30 %.
• This device may not be used as a production machine nor is it
intended for continuous operation.
6.2 Principle of Operation
The combination of high-frequency impact grinding, intense friction and circular jar movements
ensures an unprecedented grinding performance. This unique combination is generated by the
oval shape and the movement of the grinding jars.
The grinding jar supports are each mounted on two discs, which rotate in the same direction,
thus moving the grinding jars on a circular path without changing their orientation. The interplay
of jar geometry and movement mechanics causes strong friction between the grinding balls, the
sample material and the jar walls, as well as a high acceleration, which allows the grinding balls
to hit the sample material with a strong impact at the curvatures of the jars. This results in a
significantly better mixing of the particles with a higher final fineness and a narrower particle
size distribution than was previously possible with ball mills.
6.3 Views of the device
6.3.1 Front
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