Ball mill, autogenous mill, semi-autogenous mill are widely used for electric power, ferrous metal and nonferrous metal, chemical industry and building materials. This machine will grind the big size ore into small or fine. There are many types, such as overflow ball mill, grid ball mill, rod mill, autogenous mill and semi-autogenous mill.
 
NHI began to manufacture the mill since 1950s, especially in 1980s, our company take opportunity of the reform and opening-up policy to collaborate with international famous company and import the technology.
 
Based on the foreign technology and combine with our technical advantages, we’re gradually having heavy ball mill series of proprietary intellectual property rights. From Φ0.9m to Φ3.6m series ball mill in the past, now we have Φ8m ball mill; From Φ4m to Φ6m autogenous mill and semi-autogenous mill, now we have 12.2m ball mill or autogenous mill and semi-autogenous mill.