Advantages and benefits : Of rotary dryer reasonable design; high-efficiency; low consumption, energy saving; easy to maintain; easy to operate; quick deliveries; solid construction; proven design; customized for every application; best price on the market. Operating principle: Materials are sent to hopper of rotary dryer by belt conveyor or bucket elevator, materials enter the barrel installed with slope to horizontal line from the higher side, and hot air enters the barrel from the lower side, and then materials and hot air mix together. Materials go to the lower side by gravity when the barrel is rotating. Lifters on the inner side of barrel lift materials up and down in order to make materials and hot air mix completely, which is designed to improve the producing efficiency of rotary dryer. For the model 2000*18000, the gradient needed is 3-5%, and the power is 30 kw, and the capacity is 6-15 t/h, the weight is 43 t