A hammer mill has a flywheel with hammers bolted to it. It runs at a little over 3000 RPMs. Anything that gets in the way of that mass of whirling hammers gets ground up real quick. The material flies through a screen. Material that is too big to go through the screen stays in there and gets beat around u til it is small enough to go through the screen. This all happens in a fraction of a second. This is also why a hammer mill creates more dust and needs a dust collector to separate the dust from the exhausting air. A true simple hammer mill will have a separate fan that sucks the ground material out from under the screen and blows it into a cyclone or dust collector where the material drops out a chute and into a wagon or bags. A more elaborate hammer mill has an auger that augers the feed away from under the screen. So there is less dust involved. I have never used a bur mill but I would think a bur mill would be better for grinding ear corn into cattle feed. Cattle dont like fine powder in their feed.
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Today's Featured Article - Two-Brush Generators - by Chris Pratt. Whether for product liability or because the aftermarket parts and labor business is lucrative, this concept is disturbingly prevalent. Fortunately when you step into your shop and make that jump 50 years back in time to work with your old tractor, this concept goes out the window. Even so, when it comes to the charging system, people quickly revert to this idea and start replacing the major components one at a time until it works. The reason you don't find any decals in your replacement set wit
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