... output, easy operation, rare fly-ash, evenly distributed heat and stable quality.Ball press is widely used in metallurgy, mining, coal, ... have high density, high strength, and high hardnessBall press machine working principle:1. Charcoal ball press can press charcoal powder, charcoal ... kw)Capacity (t/h)T2902905.51-3T3603607.54-6T430430156-8 ball shape Double-roll type press machine for charcoal powder