The main applications of iron ore production of iron and steel enterprises and mineral processing operations in iron ore processing, to choose according to their hardness relative machinery and equipment. However, many types of iron ore, iron ore hardness during processing operations, need to design a different process is also a big difference in the choice of the milling equipment. In the choice of grinding equipment of iron ore, if the hardness is not greater than 7, you can choose common Raymond Mill, Raymond Mill is mainly used for the Mohs hardness below 9.3 and humidity less than 6 % non-flammable, non-explosive ore, building materials, chemical materials, such as ultra-fine grinding, such as limestone, quartz, coal, kaolin, cement clinker, colored glass, marble, calcite, feldspar, etc. 280 powder processing different kinds of materials, finished product fineness up to 2000 mesh fineness of materials engineering and project, as required by various dam construction sand, houses decorated with fine powder paint and other materials commonly used in the milling production line fine powder processing, a common ultrafine grinding equipment. The national launch of the the ultrafine mill industry development policy, mining machinery industry, the rapid recovery from the shock of the financial crisis, to promote and lead the development and growth of a number of mining machinery manufacturers. The next time will be the rapid growth phase of our ultrafine mill industry. Mining machinery industry in China in the next few years, it should be aimed at the large-scale development of green and intelligent direction to narrow the technology gap with the developed countries, to achieve convergence with the advanced countries of the world. For more information: company website http://www.yhzg.org http://www.mfsbw.net