Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1128 - Manual (Page 20)

6. Installation
20 PNEG-1128 Chain Loop System without Controls
The system should be designed to minimize the distance grain must be moved. The example shows the
dump hopper located next to the vertical tube. If it were located on the other side of the grain bins
then the system would have to move grain that much farther before taking it up and over to the
discharge gates.
Figure 6A
This example illustrates a system and the power requirements for different functions of a Chain
Loop System.
If the main requirement is maximum filling rate, then the motor size for this 8" system would be:
0.35 HP/ft x 40 vertical ft. = 14 HP plus
0.08 HP/ft x (20 + 100 horizontal ft.) = 9.6 HP
= 23.6 (Use a 25 HP motor)
If the requirement is maximum flow rate while moving grain from bin to bin as well as a maximum filling
rate, then the motor size would be:
0.35 HP/ft x 40 vertical ft. = 14 HP plus
0.08 HP/ft x (35 + 20 + 100 horizontal ft.) = 12.4 HP
= 26.4 (Use a 30 HP motor)
System Size Vertical Factor Horizontal Factor
8" 0.35 HP/loaded foot (0.86 Kw/M) 0.08 HP/loaded foot (0.19 Kw/M)
10" 0.50 HP/loaded foot (1.22 Kw/M) 0.11 HP/loaded foot (0.27 Kw/M)
12" 0.75 HP/loaded foot (1.84 Kw/M) 0.18 HP/loaded foot (0.44 Kw/M)