76
NOTE:
SGN and Crush Strength together determine spread width.
General Rules:
A small product with low crush strength will have limited spread width capabilities. Spinner RPM must
remain lower to keep from pulverizing the soft product, limiting your overall spread width. Additionally, a
smaller product has less mass than that of a larger product, and in this case is another limiting factor for
overall spread width.
A small product with high crush strength will have limited spread width capabilities. While spinner RPM
can be increased with little worry of pulverizing the product, a smaller product has less mass than that of
a larger product, which limits how far the product will carry in the spread pattern.
A large product with low crush strength will have limited spread width capabilities. While a larger
product with more mass will carry farther, spinner RPM must remain lower to keep from pulverizing the
soft product, limiting the overall spread width.
A large product with high crush strength has minimal spread width limitations. Spinner RPM can be
increased with little worry of pulverizing the product. Additionally, a large product has more mass than
that of a smaller product, allowing the product to carry farther, resulting in a wider spread width.
Product Setup Guidelines
Granule
Mesh
Crush
Strength
Maximum
Spinner
RPM
Flotation Machine
(Spinner Height 52”)
Spread Width ft(m)
Post Machine
(Spinner Height 72”)
Spread Width ft(m)
140-200
1
600
60-65(18-20)
70-75(21-23)
3
650-700
65-70(20-21)
75-80(23-24)
6
750-800
70-75(21-23)
80-85(24-26)
8
850-900
75-80(23-24)
85-90(26-27)
220-300
1
600
70-75(21-23)
80-85(24-26)
3
650-700
75-80(23-24)
85-90(26-27)
6
750-800
80-85(24-26)
90-95(27-29)
8
850-900
85-90(26-27)
95-100(29-30)
320-400
1
600
80-85(24-26)
90-95(27-29)
3
650-700
85-90(26-27)
95-100(29-30)
6
750-800
90-95(27-29)
100-105(30-32)
8
850-900
95-100(29-30)
105-110(32-33)
>400
1
600
90-95(27-29)
100-105(30-32)
3
650-700
95-100(29-30)
105-110(32-33)
6
750-800
100-105(30-32)
110-115(33-35)
8
850-900
105-110(32-33)
115-120(35-37)
IMPORTANT!
Always check crush strength prior to selecting spinner speed. Pan testing should
ALWAYS be performed on any new or different material to determine actual spread
width.
Verify granules are not pulverized by looking in the three center vials following a pan
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Header
Spread Pattern
