... :1000-10,000kg/h 3.Shape: ball, oval,pillow... Double-roll type press machine:This machine is specially designed according to ... , easy operation, rare fly-ash, evenly distributed heat and stable quality.Ball press is widely used in metallurgy, mining, coal, refractory ... roller through the reducer. The two sides and roll rotation, in both the rotating roll.3. Natural materials to enter the ball ...