Harvesting wet corn with S670 - The Combine Forum
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post #1 of 5 (permalink) Old 03-25-2019, 10:42 AM Thread Starter
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Harvesting wet corn with S670

At what moisture can one still successfully harvest corn?
Does one need to install a kit?
Is the mechanical damage to the kernels more if the corn is wet?

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post #2 of 5 (permalink) Old 03-25-2019, 07:59 PM
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We harvest a lot of high moisture corn for dairymen that is then blown into a silo. Obviously grain quality isn't an issue if it's going to be run through a blower, but it's usually not that bad. It's supposed to be under 30% to ensile properly, but we've done higher. No kit is needed, but don't expect to fly through the field. It takes power. Generally you'll have problems with it not flowing out of the tank before you have problems harvesting it.

What are you going to do with this stuff? Drying corn over 30% doesn't work very well.

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post #3 of 5 (permalink) Old 03-25-2019, 07:59 PM
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We harvest anywhere from 36% down to 28% high moisture corn. We don’t install any kit. We just run stock threshing and separating system. The key is to take in as little green leaf as possible. We run a 618c non chopping 18 row 20” head planted at 30,000 pop. With the wet corn your elevator chains and augers take the biggest hit if that’s the mechanical wear you were asking about.
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post #4 of 5 (permalink) Old 03-25-2019, 10:04 PM
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We harvest a fair amount of corn in the mid to upper 20’s when you get to 30 it starts grinding the grain trying to get it off the cob
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post #5 of 5 (permalink) Old 03-26-2019, 11:23 AM
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One thing to remember is that any damaged kernals, fines and grindings are likely to be lost out the back as separation loss. It is not hard to lose up to 10% of yield due to this loss. If you husk an ear of corn, you won't find any of this in the whole ear-it all comes from threshing damage. Just one of the reasons we developed the flat bar concave. harvestsolutionsinc.com
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