This series product can crush medium-hardness material with maximum feed size 600-1900mm, compression strength less than 200Mpa into finished product with size 40-25mm at once. It can be widely used in cement, chemistry, building material, and the brittle material with low water and mud content such as limestone, dolomite. This series product has the features of smart structure, big crushing ration, large capacity, low energy consumption, covering small area and so on. It may combine the two sections and three sections into single-section to finish crushing, which simplifies crushing process and reduces equipment investment.