Rough hammer mill is used for crushing all kinds of medium hard and abrasive weak material.The material does not exceed 100mpa compressive strength,moisture content is less than 15%,being broken material for coal,salt,chalk,plaster and tile,limestone,etc.also used for broken fiber structure,strong elasticity and toughness of broken wood,paper,or broken cement waste to recycling asbestos fiber and so on.rough hammer mill not only can be used for crushing production line,sand making production line,but also can be used in mineral processing production line.