Machines for the food processing industry
Düsseldorf . Deutschland
Fine Grain Peeling,
in Potato Processing Plants
of the method
carrots and other tubers and root vegetables can be peeled
very smoothly on DORNOW roller peeling machines and on some
other DORNOW peeling lines by means of a very fine
carborundum graining. We call this type of peeling micro
smoothness of the surface is similar to that of steam-peeled
potatoes, carrots etc.
is known that one can grind e. g. wood by means of fine
emery paper (with a very fine graining) so smoothly that it
gets a nearly mirror-like and shining surface. A similar
effect is caused by the micro fine-grain tools in some of
the DORNOW peeling lines with their peeling utensils which
have a very fine coating.
for the factories
industrial potato peeling factories are enabled - by means
of micro fine-graining - to market smoothly peeled potatoes
of accurate appearance, even without using blade peelers.
Surely, blade peeling will keep its appropriate place in
many fields. Please read also our relevant paper "Blade
Peeling in Industrial Peeling Plants - Necessity or Luxury?"
chips (GB: crisps) industry appears to be a good field for
using machines provided with micro fine-grain coating.
Although there have not yet been any relevant investigations:
the smooth edges of the cut chip slices are supposed to
absorb less oil than slices from coarsely peeled potatoes.
more advantage for the chips (crisps) industry: If micro
fine-grain peeling is constantly applied, it is only the
outside skins that are regularly removed. It is now common
practice in the chips (crisps) industry that in the majority
of cases batch peelers are used which have a coarse coating
with the granulation C 14, i. e. 14 grains/cm².
This type of coating is necessary in these machines, as in
case of a finer graining the peeling tools tend to get
choked so that the capacity of the machines falls off.
peeling rollers of the DORNOW roller peeling machines are
self-cleaning, even when applying micro fine-grain peeling.
you can work with a coating which removes, over the whole
year, only the outer skin, even in those cases where
re-coated peeling tools were put in the peeling machines.
peel rates and micro fine-grain peeling
all those cases where it is only the outer skin of the tuber
or root vegetable that has to be removed, this type of
peeling will produce very low waste percentages. Wherever
the product is expected to be peeled in a very accurate and
clean way, one has to put up necessarily with a higher waste
rate, due to the fact that deep lying damages/eyes must be
taken out. This is done by means of a coarse coating. The
micro fine-grain peeling can here only provide for a smooth
peeling result (coarse peeling with subsequent micro
fine-grain peeling can be carried out on a DORNOW roller
peeling machine, with the first part of the peeling rollers
being coated with coarse granulation while the last part of
them has micro fine-graining).
All peeling rollers of the DORNOW roller peeling machines of the ROW series (inner diameter ranging from 500 up to 1500 mm) can be supplied partially or entirely with micro fine-grain coating. – Machines on the web: section A, subsection 1.1
some models of the DORNOW "step-by-step" peeling
lines can peel with micro fine-graining. – Machines on the
A, subsection 1.3
paper contains non-committal notes. We do not lay claim to
completeness. Alterations reserved.
DORNOW total on the Web: www.dornow.de / www.dornow.com
Dornow food technology GmbH,
D-40549 Düsseldorf - Germany, USt-Id.-Nr. DE119264470