6 Planetary Mixers - Herbst Planetary Mixer

6.2 Construction Types 71
and effective cleaning of the complete mixer is possible in combination with the smooth
stainless steel surface of the machine housing. It stands to reason that also the mixing
space which has contact with the product as well as the stirring tools are constructed
”easy-to-clean”. After lifting the drive head the bowl, which is fitted with rollers, can be
moved to other parts of the site.
These two construction types are being used specially with larger bowl capacities because
the bowl does not need lifting.
6.2.1 Product Models HR-S 2 to HR 10
The planetary mixers HR-S 2 to HR 10 are designed for use in laboratories and small
production runs. The effective mixing volume lies approx.. between 0,4 and 1,6 litres for
the planetary mixer HR-S 2 and between 2,0 and 8,0 litres for the planetary mixer HR
10.
The stainless steel mixing bowl of the planetary mixer HR-S 2 (see Figure 48) is either
single or double jacketed with a volume of 2 litres. By using a glass mixing bowl, the
mixing process can be viewed through the glass jackets which is especially advantageous
in the research and development field.
Figure 48: Planetary Mixer HR-S 2
a) stainless steel mixing bowl, b) glass mixing bowl
The driving unit with the planetary gear is fixed on top of the mixing bowl cover. The level
adjustment of the cover is manual; for weight equalisation purposes a counter weight is
installed on the inside of the column. Alternatively the level adjustment can be regulated
electrically by a linear drive.