Application： It’s suitable for drying heat sensitive material, it’s widely used in pharmaceutical, chemical, food and electronic industries. Features: 1.Under the condition of vacuum,the boiling point of raw material will decrease and make the evaporation efficiency increase. Therefore for a certain amount of heat transfer, the conducting area of dryer can be saved. 2. The heat source for evaporation may be low pressure steam or surplus heat steam. 3. The heat loss is less. 4.Before drying,the treatment of disinfection may be carried out during the period of drying,there is no impurity material mixed. It is in conformity. 5. It belongs to static dryer. So the shape of raw material to be dried should not be destroyed. Questions before quotation: 1. Material name 2. Material initial moisture and final moisture\ 3. How many kg per batch or per day 4. Heating source is steam or hot water?