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Hot Air Tray Dryer

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. The drying is the process that the materials heated in the trays with hot air circle, the wet moisture takes out from material will be exhausted outside at the same time.
  • CT-C
  • 8419399090
  • SUS304/SUS316L/Titanium
  • Food/Pharmaceutical/Chemical

Hot air tray dryer Description

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%.

This tray type hot air dryer is usually used for drying herbal medicines and fruit slices. Therefore, many industries are directly named as herbal medicine drying Oven, herb slice dryers, fruit dryers, and fruit slice drying oven. The main reason is energy saving, very practical for small batches of fruit, drying of herbal medicines.

hot air oven

Fruit hot air oven

tray type dryer

Herb Slice Dryer

Main Parts of Hot Air Circulation Drying Oven

Food hot air drying oven consists of several main parts like baking trays, fan, heater, tray cart and so on.

External cabinet

The External cabinet of hot air drying oven is made of stainless sheets. It covers the inner chamber.

Glass wool insulation

The space between the inner chamber and external cabinet is filled with Glass wool. It provides insulation to the hot air oven.

Inner chamber

The inner chamber of the forced air oven is made of Stainless steel.

Tubular air heaters

Heater help to generate heat within the inner chamber of the hot air oven. electrical heaters are located on up sides of the fruit hot air drying oven, and steam heater are located on the side of inner of the oven.

Motor-driven blower

It helps in uniformly circulating the air within the chamber. The fan is the auxiliary part of the fruit hot air drying oven with the power of 0.75kw / set. The materials for manufacturing fan are aluminum alloy or stainless steel.

Temperature sensor

It measures the temperature within the fruit hot air oven and displays it on the controller screen.

Tray cart

the cart load the tray and move inside the of food hot air dryer oven, The baking vehicles and its wheels are made of stainless steel. Their customization is also available.


Once Shaping Pressed Baking Trays are specially designed auxiliary products for hot air circulation drying oven. Generally, the baking tray is made with the standard size of 640*460*45mm and it also can be customized according to customers' demands.

Temperature controller

It maintains the accurate temperature during the entire cycle. It also controls the temperature and also displays the temperature values.

fruit drying oven

Interior of Hot Air Oven

herb slice drying oven

Tray of Drying Oven

Hot air Oven specifications


Loading  (Kg)

Fan power (KW)

Heating method

Quantity of Tray cart

Quantity of Tray

Machine size
  (L x W x H) M






Electrical /steam








Electrical /steam








Electrical /steam








Electrical /steam








Electrical /steam





1.Hywell   machinery reserves the right to the design without notice

2.All   specifications are as accurate as is reasonably possible, but they are not   binding.

Explosion Proof Type Hot Air Oven

    If the dried material is slightly flammable and explosive, hywell machinery company can design the hot air oven as an explosion-proof type. Regarding the explosion proof hot air drying oven, it is necessary to use all the instruments and gauge related to the power supply to be explosion-proof. For example, explosion-proof temperature sensors, explosion-proof motors of fans, control cabinets are either explosion-proof control cabinets or placed in safe areas; and control cables also need to be explosion-proof. In addition to the explosion-proof use of the above instruments; the explosion proof hot air oven must have an explosion vent. When the pressure of the interior of the machine reaches a certain pressure level, the explosion vent will automatically rupture to prevent danger at the use site. Off course, the explosion-proof drying machine that need use the steam heating or hot water heating.


Explosion proof control system


Explosion vent device

Food Hot Air Oven Construction Material

Hywell Machinery are able to offer our CT series food hot air oven with contact part to be built in SS304, SS316L, Titanium, Duplex stainless steel, etc. Electrical parts of control system of the drying machine can be adapted to the customer’s needs.

Hot Air Drying Oven Advantages

Hywell machinery CT series hot air fruit dryer had the following advantages over conventional solutions.

1. Hot air is circulated in the oven to save the energy, so the heat efficiency is high.

2. It adopts the forced ventilation and adjustable air distributor, thereby materials in the oven can be dried uniformly.

3. The most common heating sources are offered: steam, electricity, or far infrared, or both steam electricity. Generally, electricity is the most economical and convenient way.

4. Hot air fruit drying oven is made of stainless steel, equipped with an axial flow fan, automatic thermostatic control system and a computer control system.

5. Low noise, smooth operation, automatic temperature control, easy installation, and maintenance.

6. Wide application. This hot air fruit drying machine can be used to dry variety of fruits like blueberries, banana, lime, etc. and it is also applied in the pharmaceutical industry, chemical industry, food industry and etc..

7. Various hot air drying ovens can be customized according to customers' needs.

8. Drying temperature of food drying oven: steam heating 50-130˚C, Max.140˚C.

9. Commonly using steam pressure 0.2-0.8MPa(2-8 bar), if machine heated by steam (steam supplied by client).

10. For operation temperature of over 140˚C or less than 60˚C, please indicate when order.

11. The ovens and baking trays made by our factory are standard dimensions (640x460x45mm), and it can be exchanged each other.

12. Baking tray also drill hole if client have detail requirement.

13. Hywell machinery can design and manufacture the explosion proof hot air oven to dry the Flammable and explosive materials.

14.Hywell can design the hot air oven that set working time and delaying turn off fan so that reduce the heater hot energy gather inside the hot air chest.

15. Machine materials : AISISUS304 , AISISUS316L, and other material .

16. Highly polished inner and outer surfaces of the machine, no dead comer, easy to clear, no cross contamination. Confining to the requirement of GMP.


1. Electrical components

it have international brand choices such as ABB , Siemens or Schneider or others.

2. Steel model of the tray type hot air oven

it can choices on SS304, SS316L, Titanium, Duplex stainless steel.

3. Control system

it have choices on push button, PLC+HMI and so on .

4. Heating method of the hot air dryer oven

it is very flexible. it can configure it based on the customer site conditions ,such as steam ,electricity.

5. Cooling function

If it is without heating system, the tray type oven can be as a cooler to make particle with cooling air.

Hot Air Oven Application:

The hot air circulating drying oven is suitable for material and product hot solidification and dry de-watering in the pharmaceutical, chemical, food, farming side-product, aquatic product, light industries, heavy industries and others industries. Such as: raw material medicine, crude drug, prepared herbal medicine of Chinese traditional medicine, plaster, powder, particle, drinking agent, pill, packing bottle, pigment, dyestuff, dewatering vegetable, dried fruit piece, sausage, plastics, resin, electric component and etc.

if the materials is heat sensitive material,and it need low temperature dryer to process it. 

Hot Air Drying Oven Video

Herb Slice Dryer Oven Video


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