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Looking at a new 20 series combine and was wondering about the small tube rotor in corn, soybeans. I thought I've read on here in the past about some people had used it in corn. Can you keep the corn from going out the back? Just wondering because it sounds like it would be the way to go in soybeans but don't want to have problems in corn.
 

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I think if you make some small adjustments to the rasp bars (not sure what exactly), I think the ST rotor does fine in corn. I know for sure the rice version ST is the cats azz in soybeans and rice. I bet someone in corn country can tell you more about the adjustments for corn.
 

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We ran one last year and it is the cats azz in beans... big time! We found it a little more temperamental in corn but we got along pretty well without making any adjustments to the rotor. We are going to try a few changes this year... those include removing the spiked tooth rasp bars for stand ones, and I can't remember what it has for flat bars but I think some guys have pulled a couple of them off as well. Also heard of a few people pulling the front two rasp bars off that actually run inside the transition cone because of feeding issues. We didn't run into any of that in 40-70bpa beans with a 36' draper, or 180-240bpa corn with an 8row head.

Imo its well worth having if you have more then a handful of beans acres. I think this year we will mess with it enough to get it working as good as any other rotor in corn.

The only non stock parts we put in the combine was a set of Kuchar concaves... we only put them in the front half but already have the order for the back as well. A guy will not be happy with a 7010 or 8010 in higher moisture corn with lots of plant material without roundbar concaves or kuchars or something of that nature. The standard ones pinch material and plug... Not sure how much they help in a 25 series machine.
 
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