Jacobson hammermill, Model ID-161B, full circle, 20 HP. Jacobson hammermill, Model P-240D, full circle, 20 HP. Jacobson hammermills, Model P-241-DTE, full circle, 75 HP. Jacobson hammermills, Model P-481 DCT, full circle, 48" x 10" Jacobson hammermill, Model 24DF10 Jacobson hammermill, Model 2400, with quick change screen