1.all at once crushed into a powd,leaving no residue 2.compact structure,easy operation 3.be applicable to Africa market ... ,sweet potato and other vegetables.All at once crushed into a powder,leaving no residue.It has the features of compact ... 12hp engineSpeed3600-4000pmFeed size≤220mmDischarge size0.8-1.2mmBroken rate<2%Grinding rate>98% corn flour machine