The characters of the tube energy-saving ball mill: 1. Save energy: Bush bearing is replaced by rolling bearing; friction resistance is greatly lowered down, easy to be started. It’s energy is lowered 10-15% than the old one. 2. The capacity is larger, for the outlet disk and the checked liner are adopted; the capacity is higher 20% than the cone ball mill.

The characters of the cone ball mill: 1. Bush bearing is replaced by rolling bearing, friction resistance is greatly lowered down, the equipment is energy saving and easy tube started; 2. The discharging part is designed as a cone type, which increase the capacity and enforces the material at the discharging end to be reclassified, and the balls are reclassified too, that is the nearer to the end, the smaller are the balls, regrind effectively.3.Grooved ring liner is adopted, which increases the contacting surface between balls and material, improves milling effect, and saves energy by its lifting the be material.4.One piece frame is used, facilitating engineering construction (only a simple foundation) and equipment installation.