The compound crusher is a new kind of highly efficient crusher developed by Henan Hongxing Heavy Industries based on the summary of the tecnology of similar the crusher and the optimization of the main technical parameters. The design of the compound crusher integrates the design of hammer crusher and impact crushing machine and it is especially suitable for the crushing of brittle materials with medium hardness and low water content in building materials, mining, chemical, metallurgy, cement, coal and other industries. The compound crusher is used for the secondary crushing in the cement industry. The combination crusher has the following characteristics: large crushing ratio so that the biggest crushing ratio can reach the discharging size, not affected by the wear of the hammer and liner; No grizzly bar setting, it is not easy to clog when crushing the materials with large water content and clay content; adjusting mechanism so that the non-crushing elastic objects can be automatically discharged and will not cause damage to the equipment; the horizontal arrangement of the bearing, long service life and it can crush the high temperature materials (such as cement clinker); unique structure of the rotor body, the rotor body hardly get worn when crushing materials etc. When selecting the crusher, the users should choose the most reasonable equipment according to the specific circumstances. The users should pay attention to routine maintenance to ensure the stable operation of the production line and avoid losses. The compound crusher can be not only widely used for the crushing operations of the raw material and clinker in the cement plant, but also can be used for the as dolomite, flint clay, lead and fine crushing of the materials with medium hardness such zinc, serpentine, blast furnace slag, coal gangue, phosphate rock, it is especially suitable for the crushing of hard limestone etc., dolomite, granite, basalt and other rocks used for the making of artificial sand or highway pavement.