Crusher, history can be traced back to the 1850s from the birth of the first jaw crusher in the world for a long time has passed. With the development of the productive forces, jaw crusher crushing technology can not fully meet the needs of high-quality four-roll crusher, then, on the basis of jaw crusher roll crusher on four principles, it has designed a crusher. 1924 four-roll crusher models, the Germans developed the first single, dual-rotor two types of four-roll crusher crusher, crusher structure then similar to the modern squirrel cage crusher, because both From the structure, or from the working principle of the analysis, which all have the characteristics of the crusher. As the material requires repeated shocks, crushing process can be free and unimpeded discharge, but due to restricted material strength and impact crusher capacity, gradually transforming its model for squirrel cage crusher. The main purpose of crusher can process the material side length of 100-500 mm, with a compressive strength of up to 350 MPa, with a crushing ratio, after the material was broken advantage cubic particles. Widely used in building materials, ore crushing, railway, highway, energy, transportation, energy, cement, mining, chemical and other industries used in crushing materials. Its particle size can be adjusted discharge, broken specification diversification. Xuyi four high-quality four-roll crusher roll crusher _ _ Xin Li Heavy professional manufacturer (certified merchants) provided by Gongyi City Heavy Machinery Manufacturing Co., Ltd. Xin Li. Gongyi City Xin Li Heavy Machinery Manufacturing Co., Ltd. (www.gyxljxc.com) is specialized in the "hammer, grate, liners, crusher parts, hammer crusher, mobile crusher station" of the enterprise, the company adhering to the "integrity management, service intentions, "the idea, to provide you with the highest quality products and services. Welcome to inquire! Contact: Yu Jingli.