1. dryer cylinder; 2. saw dust rotary dryerwide application and energy saving 3 saw dust rotary dryer high efficiency Roller drying machine make up by :three dryer cylinder , lifting plate, front and rear wheel unit, inside and outside of feeding device, gearing, high pressure air machine, shaker , stove, dust and sand removal device, iron device (to ensure no hard sawdust of drying ), buffer gas ...