Hammer Mills - FEECO International, Inc.FEECO Hammer Mills. The FEECO double rotor hammer mill is a super heavy-duty mill adapted to do the toughest jobs with two sets of chain / bar links. Our hammer mills reduce dry and semi-moist materials with a minimum amount of fines and caking or plastering within the crusher. They are ideal for granulated and.mills hammer mills,Hammer mills - ANDRITZ GroupHigh-performance hammer mills for optimum size reduction of raw material. Decades of experience and highly qualified product specialists make us a strong partner in the supply of hammer mills for size reduction.