He moisture content of raw materials should be controlled at 15 ~ 20%，or it will affect the molding effect of particles. A complete drying process includes, feeding belt, hot blast stove, Combustion engine, dryer, Cyclone, discharging belt, Air blower, power distribution cabinet, etc.

Drum wood chipper machine is the specific equipment of producing wood chippers it included the machine body knife /roller the upper and lower feed rollers belt conveyor hydraulic systems knife roller will install two or four six rotary knifes according to the different thickness and diameter of the materials which cut The upper feed roller assembly can use the hydraulic system to fluctuate within a certain range.