PCZ series heavy hammer crusher, also known as boulder crusher, is a new hammer crusher developed on the basis of PC series crusher, according to the feedback information of users and the development trend of crushing industry, combined with the experimental data of our company. Therefore, compared with the ordinary hammer crusher, the heavy hammer crusher adopts the alloy composite hammer head, which has the remarkable characteristics of high wear resistance, large moment of inertia and high rotor kinetic energy. It overcomes the shortcomings of other Hammer Crushers, such as fast wear of hammer head and easy breaking of hammer pin. It has the characteristics of large feeding particle size, high crushing ratio and low maintenance cost. The current output of heavy hammer crusher sometimes ranges from 50 tons to 500 tons, which makes this series of heavy hammer crushers become the equipment of large stone crusher industry.