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Why did FRITSCH sink the grinding bowls?
Characteristic features of conventional planetary ball mills are grinding bowls clamped onto the solar disk of the mill. This limits the maximum rotational speed, because from a certain borderline rotational speed the centrifugal powers asserted on the bowl, are so high, that the fasteners may not be able to hold the bowl. Resulting in damaged mills and bowls.
On the other hand, the grinding of materials into the nano ranges require – an increasingly demanded task – much higher applications of energy and therefore higher rotational speeds as previous planetary ball mills allowed.
The sinking of the grinding bowl into the solar disc of this mill solves this problem! Now the center of gravity of the bowls is on the level of the solar disc. The appearing centrifugal powers produce considerably lower moments of tilt, which in turn allow clearly higher rotational speeds of the mill. So with the new FRITSCH premium line an up to 150% higher application of energy is possible. The grinding time into the nano range is hereby considerably reduced. For certain materials this increased application of energy makes the production of nano particles with planetary ball mills possible.
FRITSCH therefore sets new standards in the area of communition!
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