The hot air tray dryer adopts the forced circulation of hot air inside the chamber of the oven. In the drying chamber, hot air rises above and the hot air reaches the top of the chamber. Then, hot air is circulated back to the bottom by a fan installed inside the chamber and hence the optimum amount of heat is achieved gradually inside the oven. Drying is the process in which the materials are heated in the trays with a hot air circle, the wet moisture taken out from the material will be exhausted outside at the same time. the hot air tray dryer is also called hot air oven, hot air circulation oven.

CT-C series hot air tray dryer adopts noise elimination and thermal stable axial flow fan and automatic temperature control system. The entire circulation system is enclosed to make that the heat efficiency of the drying oven increases from 3-7% of the traditional drying oven to 35-40% of the present one. The highest heat efficiency can be up to 50%.