A tray dryer is a heating chamber used for drying of moist unfinished pharmaceutical products such as medicines, tablets, powders, granules etc, under controlled non contaminating environment.

Drying is a conventional process used in pharmaceutical industries for making medicines which is done using tray dryers. A Tray Dryer is simply a double walled cabinet with Single or Two doors. high density fiber glass wool insulation is used to fill the gap between the two walls of the cabinet to avoid heat loss through conduction. Doors are provided with gaskets. Stainless steel trays are placed on the movable trolleys. A standard tray dryer has an electrical control panel, Digital timer and Digital temperature controller cum indicator.