Some flavor companies fill their products volumetrically in plastic totes and
larger bottles. As long as their products' bulk density does not change
drastically from batch to batch (or as long as this is not important to their
customers) the Servo Pump Filling Machine is an extremely accurate volumetric
filler that is flexible, easy to use and easy to
clean. Because a programmable servo controlled pump is used on each
nozzle, there is no practical limitation to the size of the containers being
filled. This means a flavor producer could fill both 5 gallon totes as well as
quart containers of a product on the same machine quickly and efficiently.
Although this machine is
easy to clean, it does have substantial amount of fluid path which may cause an
unacceptable amount of residual product to be wasted in the cleaning process. If
the product value is very high, the servo pump machine may not be appropriate
for this reason. But since flavor production is generally not a very high
output, the number of filling heads on this type of system and therefore the
amount of residual fluid path would be limited. This observation is also
important because each servo controlled pump/nozzle combination on this system
is expensive and typically costs over
$10,000 per nozzle.
Peristaltic Filling Machine
and Essential Oils
Essential oils and
extracts are high value, low viscosity products typically sold in small size
glass vials. The peristaltic machine is Ideal for these products because of
accuracy of small fill sizes, ease of cleanup, and because there can be no cross
contamination of different products run on the same filling machine.
Cross contamination is
avoided because the only thing that touches the liquid is the peristaltic tubing
itself which is composed of silicone or other inert specialty polymer materials.
This tubing is inexpensive and can be easily cleaned, dedicated to a particular
liquid, or simply thrown away after use. The size of tubing chosen in this
machine depends on the fill size and accuracy required. The smaller diameter of
tubing used, the higher the accuracy but the slower the fill rate. This
explains why this machine is best utilized on small fills where high accuracy is
needed. Large fill sizes greater than 1 liter are typically not filled on
this type of machine because the fill cycle time can be lengthy. But for a
typical fill size of 5 to 10 ml, again this is the ideal machine.