Great Plains 2525P Material Rate - Manual (Page 49)

Great Plains Mfg., Inc.
47
03/23/2010 118-231B
2025-P TWIN ROW 30" 2525-P
ATTENTION ! ! ! (For all seed corn types)
12 Finger Meter
Great Plains always recommends test stand calibration of the finger meter to the population and ground speed desired .
For Round Corn optimum meter speed is 45 to 75 RPM
( Shaded & Non shaded areas )
Range Sprockets:
Driver =
30 For Flat Corn optimum meter speed is 60 to 75 RPM
Driven = 15 (Shaded area)
Ground Speed
Transmission 7 mph 6.5 mph 6 mph 5.5 mph 5 mph 4.5 mph 4 mph 3.5 mph
Combinations Seed Seed
Population Spacing Meter Meter Meter Meter Meter Meter Meter Meter
Driver Driven (seeds/acre) (inches) (rpm) (rpm) (rpm) (rpm) (rpm) (rpm) (rpm) (rpm)
17 28 23,450 17.8
17 27 24,318 17.2
17 26 25,253 16.6
19 28 26,208 16.0
17 25 26,263 15.9
19 27 27,179 15.4
17 24 27,358 15.3
19 26 28,224 14.8
17 23 28,547 14.6
19 25 29,353 14.2
19 24 30,576 13.7 45
23 28 31,726 13.2 47
19 23 31,906 13.1 47
23 27 32,901 12.7 48 45
24 28 33,105 12.6 49 45
23 26 34,166 12.2 50 47
24 27 34,331 12.2 51 47
25 28 34,485 12.1 51 47
17 19 34,557 12.1 51 47
23 25 35,533 11.8 52 49 45 Not Recommended
24 26 35,652 11.7 53 49 45
25 27 35,762 11.7 53 49 45
26 28 35,864 11.7 53 49 45
23 24 37,013 11.3 55 51 47
24 25 37,078 11.3 55 51 47
25 26 37,137 11.3 55 51 47
26 27 37,192 11.2 55 51 47
27 28 37,243 11.2 55 51 47
23 23 38,623 10.8 57 53 49 45
28 27 40,053 10.4 59 55 51 46
27 26 40,108 10.4 59 55 51 46
26 25 40,168 10.4 59 55 51 46
25 24 40,232 10.4 59 55 51 47
24 23 40,302 10.4 59 55 51 47
28 26 41,594 10.1 61 57 53 48
27 25 41,713 10.0 61 57 53 48
26 24 41,841 10.0 62 57 53 48
25 23 41,981 10.0 62 57 53 49
19 17 43,167 9.7 64 59 55 50 45
28 25 43,257 9.7 64 59 55 50 46
27 24 43,451 9.6 64 59 55 50 46
26 23 43,661 9.6 64 60 55 51 46
28 24 45,060 9.3 66 62 57 52 47
27 23 45,340 9.2 67 62 57 52 48
23 19 46,754 8.9 69 64 59 54 49
28 23 47,019 8.9 69 64 59 54 49 45
24 19 48,787 8.6 72 67 62 56 51 46
25 19 50,819 8.2 75 70 64 59 53 48
23 17 52,254 8.0 71 66 60 55 49
26 19 52,852 7.9 72 67 61 56 50
24 17 54,526 7.7 75 69 63 57 52 46
27 19 54,885 7.6 75 69 64 58 52 46
25 17 56,798 7.4 72 66 60 54 48
28 19 56,918 7.3 72 66 60 54 48
26 17 59,070 7.1 75 68 62 56 50
27 17 61,342 6.8 71 65 58 52 45
28 17 63,614 6.6 Not Recommended 74 67 60 54 47