innovative trolley/tray drying ovens are provided with trolleys for placement of products. These trolley/tray drying ovens are ideally suited for variety of thermal applications, such as component testing. These ovens are used for variety of purposes. materials can be loaded and unloaded easily. In trolley ovens, trolley with shelves are used for placement of product. In this oven, doors on two sides can also be provided and two trolleys can be used to increase the production and save the batch timings. Temperature range upto 3000c.