... 10,000kg/h 3.Shape: ball, oval,pillow... Double-roll type press machine:This machine is specially designed according to the characteristics of ... , mining, coal, refractory, abrasive, fertilizer, ceramics, etc. Ball press machine feature:1. High efficiency2. Apply for many kinds of powder ... of Coal ball type pressure machine will pass the power on to the two pressure roller through the reducer. The two ...