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SGB Batch Blender with Mitsubishi Controller Page 49 of 118
the blender and the operator is not required to enter it.
The ingredient names selected will be displayed on the run mode
display so the operator will know what material is being blended.
Important! The #1 hopper (“NAT” - Virgin Material) recipe ingredient will not
be shown on the recipe setup menu.
ADD (Additive) designations will weigh the ingredient as a
percentage of natural material only
.
RGD (Regrind) designations will weigh the ingredient as a
percentage of the total
batch.
Virgin material must be loaded into hopper #1 and regrind into
hopper #3.
5-3-2 “Percentage” Mode
(Most common in extrusion and blow molding)
Extrusion processing often requires recipes in percentage format,
especially if regrind is not involved, i.e. blown or cast film.
In this mode, operators enter in values for each hopper up to 100%. The
total of all the hoppers must equal 100%. If they don’t, an error message
appears on the Recipe screen and prevents the recipe from being
accepted. All hoppers are a percentage of the total batch size.
Important!
All ingredients are weighed as a percentage of the total batch.
5-3-3 “Parts” Mode
(Often used in Compounding Applications)
The “Parts” recipe entry mode lets the operator enter in values based on
a parts ratio rather than a percentage. Each entry can be up to 999.99
and the total of all hoppers does not have to be 100. After all values are
entered, the total parts are calculated. The individual hopper target is
then calculated based on each hopper’s entered parts. These parts
represent ratios of the total batch. For instance: Hop 1=300 parts, Hop
2=100 parts, Hop 3=10 parts, Hop 4=5 parts. This would mean that if
the batch was divided into 415 parts, then Hop 1 would make up 300 of
those parts, Hop 2 would make up 100, Hop 3 10 parts, and Hop 4 5
parts.