new design soya bean grinder /coffee bean grinder / bean grinder machine. $100.00-$10,000.00/ set. 1 set (min. order) cn zhengzhou shuliy machinery co., ltd. 9 yrs. 5.0 ( 3) contact supplier. when working, it relies on the millstones to make the goods into powder. made of stainless steel, this type machine can realize durable use.