YQJ-290 Ball press machine: 1.Capacity:1-3T/H for coal dust 2.Briquette size:25-50mm 3.CE 4.Prompt deliver About ball press machine:YQJ sery briquette machine can be used to make briquette from coal dust,coal powder,charcoal powder,mine powder etc.It is widely used in fireproof industry,power plant,metallurgy,chemistry industry,etc.The finished briquettes has high density.easy to transport, ...