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Appendix C: Disc Dosing Factors And Equipment Drawings And Parts
Numbers
Disc Dosing Factor Table 1: Disc Guide
Disc
Disc
Nomenclature
Used in the
Controller
Minimum/
Maximum Disc
Revolution
Weight Per Disc
Revolution
(Bulk Density
35lb/cuft)
Min. Throughput
with 100%
Continuous
Running (Bulk
Density 35lb/cuft)
Max.Throughput
with 100%
Continuous
Running (Bulk
Density 35lb/cuft)
Weight Per Disc
Revolution
(Bulk Density
44lb/cuft)
Min. Throughput
with 100%
Continuous
Running Bulk
Density 44lb/cuft)
Max.Throughput
with 100%
Continuous
Running (Bulk
Density 44lb/cuft)
DD30-030672
Default
Calibration #
1.50 g/rev
P030672
# of Holes
Diameter
Disc Thickness
0.2 Rev./min
6.4Rev./min
(6.4 RPM)
0.5 Rev./min
11.5 Rev./min
(11.5 RPM)
1.0 Rev./min
35.5 Rev./min
(35.5 RPM)
1.53 g/Rev.
0.02 g/Hole
0.04 lb/hr
0.02 kg/hr
0.10 lb/hr
0.045 kg/hr
0.19 lb/hr
0.09 kg/hr
1.30 lb/hr
0.59 kg/hr
2.32 lb/hr
1.05 kg/hr
7.16 lb/hr
3.25 kg/hr
1.95 g/Rev.
0.027 g/Hole
0.04 lb/hr
0.02 kg/h
0.12 lb/hr
0.05 kg/hr
0.26 lb/hr
0.12 kg/hr
1.65 lb/hr
0.75 kg/h
2.89 lb/hr
1.31 kg/hr
9.00 lb/hr
4.10 kg/hr
D30-051040
Default
Calibration #
4.00 g/rev
051040
# of Holes
Diameter
Disc Thickness
0.2 Rev./min
6.4 Rev./min
(6.4 RPM)
0.5 Rev./min
11.5 Rev./min
(11.5 RPM)
1.0 Rev./min
35.5 Rev./min
(35.5 RPM)
4.24 g/Rev.
0.11 g/Hole
0.11 lb/hr
0.05 kg/hr
0.27 lb/hr
0.12 kg/hr
0.55 lb/hr
0.25 kg/hr
3.59 lb/hr
1.63 kg/hr
6.33 lb/hr
2.87 kg/hr
19.80 lb/hr
9.00 kg/hr
5.39g/Rev.
0.13 g/Hole
0.15 lb/hr
0.07kg/h
0.35 lb/hr
0.15 kg/hr
0.70 lb/hr
0.32 kg/hr
4.56 lb/hr
2.07 kg/h
8.00 lb/hr
3.62 kg/hr
25.30 lb/hr
11.50 kg/hr
Note 1: This guide is to be used for general disc selection for Digital Dosing unit applications. All rates shown are continuous throughput and are
based on free-flowing materials. Consult factory for regrind, powder and all hard to flow materials.
Note 2: Maximum feeder disc revolutions in one screw recovery period (injection mode) is 9.5 revolutions. Use proper disc sizing for injection mode
applications to ensure proper dispense of material during the recovery cycle. Maximum dispense during a recovery cycle should not exceed 9.5
revolutions of the metering disc.