1150 International Feed Grinder/Mixer. 540 PTO. I believe it holds about 150 bushels. 3 Screens that come with it. Works well we just sold the cows. Always kept indoors. It is ready to go does not need any work. I replaced belts 2 years ago. Knives are balanced well. I also replaced universal knuckle 2 years ago. It's old but still functions well.