Combines Keystock grates

In soybeans keystock grate helps move material through faster with less bunching, also chews it up better.IN corn with green leaves, wetter material it helps get kernals seperated better.Not good for oats where you want to bale straw, chews straw up.

P.S. Should make it clear my 1st reply is with using keystock grates along with maize or scallop bars with standard rotor.If not using maize bars, keystock grates still improve kernal seperation. Maize bars help soybean straw move through faster and chew it up better.