Rotary Drum Dryer is a machine that is used to lower the moisture content of forests or agro-waste. It is suitable to dry raw material that contains moisture up to 50 percent. The benefit of the rotary dryers is that they are less sensitive to particle size and accept the hottest flue gas of any dryer. There are three types of dryers that you help in drying agro and forest waste including a flash dryer, rotary drum dryers, and superheated steam dryers.