Kuchar Rasp Bars move the material on the top of the cage as well as on the concaves to give you a better job of threshing without overloading the shoe. You also get better separation and a cleaner sample in the bin with less cracking and grinding of the grain. The machine pulls easier and uses less fuel.

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The Kuchar Impeller does not block off the flighting. Its design allows even feeding of crop into the rotor, so the machine does a better job of threshing and separation. It also eliminates dust coming out of the feeder house. 

 

The John Deere Impeller blocks the front of the rotor and doesn’t easily let material through. This leads to back feed over the feeder chain and causes dust to come out of the front of the feeder house.