Rolling machine is developed in the middle of 1980, which is a new cement and saved energy powder grinding equipment. It can displace the low efficiency and high consumption ball mill in part or completely. Reduce the steel consumption and nose. It is suitable to not only new plant but also technical revision of old plant. Raise the output by 40 to 60 percent and reduce the power consumption by 30 to 50 percent. The material that its fineness is 0.8mm covers 20 to 35 percent after aqueezing the material. The fineness is less than 20mm which is covered 65 to 85 percent. The inner structure of small lump is filled with microdefect. Improve the easy abrasivity. The roller face is heat weld buildup. It is easy to maintenance in the abrasive layer.