6 Planetary Mixers - Herbst Planetary Mixer

6.3 Customised Designs 75
Figure 53: Planetary Mixer HR-S 400 (stand construction)
6.3 Customised Designs
6.3.1 Double Planetary Mixer
Where higher shear force entry is required in the mixing process, a special mixing tool
(see also chapter 6.4.4) or a double planetary mixer can be used. The special design and
position of the two mixing tools provide the necessary shear forces for a free revolution
and an effective mixing operation. The level of the shearing strain is dependent upon the
rotating velocity and the clearances between the mixing tools.
6.3.2 Detachable Planetary Mixer
Suitable bowls can be retrofitted with a detachable planetary mixer. The planetary mixer
unit would then be attached to the centrally located bowl flange.
6.3.3 A Combination of a Planetary and a Central Mixing Unit
In the research and development field it is often of great importance to cover the largest
possible functional range with only one mixer. To achieve this the planetary mixer can
be fitted with an additional connection for a central agitator shaft.
Figure 54 shows a combination of a planetary gear with a central agitator shaft. On the
left is the planetary gear with the planetary mixing tool and wall scraper, the centrally
located drive spigot for the agitator is clearly visible.