1. extruding from the wet powder 2. break the material block 3. different size of the sieve 4. one roller or two rollers Main uses The machine can make granules from wet powder materials and crush the dry lumpish materials to granules, which is applicable to the pharmacy, chemical industry, foodstuff industry, etc.Working Principle The materials are crushed into granules from the screen by the roller swings back and forth. Packing: plastic film and wooden case