ECO-WORTHY 110V Automatic Continuous Hammer Mill Herb Grinder, Pulverizer Machine, 15KG Per Hour Continuous feeding, hammer grind. The hammer is made of hard alloy steel, and is durable in use. The grinder is equipped inside with colander and can grind materials into different size of powders. The special structure makes the machine rotate without vibration. Low noise, high efficiency, easy operation, safe to use, convenient to move.