GMP tray dryer Drying oven for food industry

Description of Tray Dryer

Hot air circulating oven / Tray dryer is equipped with low-noise and thermostable axial flow fan and automatic temperature control system. The entire circulatory system is sealed, improving the thermal efficiency of oven from traditional 3-7% in drying room to the current 35-45%, with the highest thermal efficiency up to 50%. The design success of GR hot air circulating oven make our Hot Air Circulation Oven has reached the advanced level at home and abroad. It has saved a lot of energy for our country and improved the economic efficiency of enterprises. 

It is suitable for heat curing and drying and dehydration of materials and products of pharmaceutical, chemical, food, agricultural, aquatic, light industry and heavy industry, such as bulk drug, crude drug, Chinese medicine decoction pieces, extractums, powders, granules, electuaries, water-bindered pills, packing bottle, pigment dyes, dehydrated vegetables, dried fruit, sausages, plastic resin, electric elements, drying varnish and so on.

In drying process, fresh cold air is sucked into the drying chamber by the circulation fan and flows through the steam radiator or electrical heating tubes installed at the top to get required temperature. With the help of air distributor, the hot air evenly flows through each layer of trays for heat transfer and carries way the evaporated moisture. Most of the damp air flows back to the circulation fan for next drying circulation while part of the damp air is exhausted for energy saving. The drying process is batch type. When the drying is finished, open the chamber door and pull out the trolleys for unload the dried product.

Features of tray dryer

Most of hot air loop inside the box so it is high thermal efficiency and energy-saving. It uses forced ventilation, with adjustable air divider plate in the box. The materials are dried uniformly. Heating sources offer a wide choice of steam, electricity, far infrared. Machine has low noise, auto-controlled temperature and convenient installation and maintenance and is stable in operation. It has wide application and can be used to dry various materials, so it is a commonly used drying device. 

Parameters of tray dryer