It is widely used in heating and dehumidifying raw materials and production of pharmaceutics,chemical, foodstuff, light industry and heavy industry etc.Most of the hot wind is circulated in the oven, bringing high thermal efficiency and energy saving. The oven is equipped with adjustable air-distribution plates to evenly dry the materials by forces ventilation. The whole machine runs in stable conditions, low noise, self-control temperature, easy maintenance, and wide applications.