The series of PF is mainly used in industries of mining, architecture, chemical, electric power, metallurgy and ore, and coal with compressive strength of smash materials not over 320Mpa. After the crushing , the products are with rhombus shape. it is used as the terminal smashing with the jaw crusher. The series of PF is mainly comprised of underside housing, uperside housing, back uper housing, rotor, counterattack plates, principal axis , blow bar and other components.