... 5.high efficiency This kind of wood sawdust dryer is mainly used to prepare suitable moisture raw ... the raw material is higher than that, sawdust dryer will need several times of drying to achieve the ... with moisture content of 20% -50%,the sawdust dryer can reduce moisture from 20%-50% to 8-12 ... pipe, cyclone and air lock. In this sawdust dryer machine system, wet material is input into hopper by ...