You are here: Home » Products » Laboratory Machinery » Laboratory Dryers » Hot Air Circulation Oven
Share to:

Hot Air Circulation Oven

The hot air circulation oven adopts the forced circulation of hot air inside the chamber of the oven. In the drying chamber of hot air circulation, 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. A pharma hot air circulation oven is a 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 circulation oven also named as hot air drying oven or hot air tray dryer.
  • CT-C
  • HYWELL
  • 8419399090
  • SUS304/SUS316L/Titanium
  • Food/Pharmaceutical/Chemical
Availability:
Quantity:

Hot Air Circulation Oven Introduction

GMP Hot Air Circulation Oven has a fully welded stainless steel frame structure for curing, drying, and sterilizing powders, granules, herbs, or fruit. Whether in R&D, mass production, or quality control; Hywell MachineryCo GMP Hot Air Circulation Oven ensures precise hot airflow in all the oven trays.

Every Hywell MachineryCo hot air circulation oven has energy-efficient axial blowers and heating systems. the hot air circulating oven saves on cost and ensures uniform drying and curing.Hywell MachineryCo hot air circulation pharmaceutical ovens guarantee unlimited functionalities with both standard and custom designs available. Our hot air circulating oven fits many applications such as pharmaceutical, nutriceutical, herbal, food, fruit, etc.


Hot Air Circulation Oven Video




The Ultimate FAQ Guide of Hot Air Circulation Oven

If you’re going to invest in a new pharmaceutical hot air circulation oven, then learn the basic principles, optimal working conditions, and classification criteria of this equipment.

This guide is tailored to educate you on all the vital parameters of the hot air circulation oven.

So, if you want to be an expert in this pharmaceutical hot air circulating oven, then you should read this guide.


01 What is a Hot Air Circulation Oven?
02 What are the Uses of a Hot Air Circulation Oven?
03 Hot air Circulation Oven Specifications
04 What are the Main Advantages of a Hot Air Circulation Oven?
05

Which Options are Available When Ordering the Hot Air Circulation Oven?

06 Which industries are hot air circulation ovens mainly used for?
07

Which Materials Can Dry Using a Hot Air Circulation Oven?

8

How Many Types of Hot Air Circulation Ovens are There?

9

Which Are the Main Parts of a Pharmaceutical Hot Air Circulation Oven?

10 How Does a Hot Air Circulation Oven Work?
11 Which is the Best Material for Making a Hot Air Circulation Oven?
12 How Does a Hot Air Circulation Pharmaceutical Oven compare to a Sterilizing Oven?
13 How Does Oven Drying Compare to Vacuum Drying?
14

Which is the Most Suitable Working Temperature for Hot Air Circulation Oven?


1. What is a Hot Air Circulation Oven?

CT-C series hot air circulation oven 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 hot air circulation 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%.

A hot air circulation oven is equipment that provides a fast and economical mode of drying different products.

it will use to get rid of excess moisture from products such as granules, herbs, and powders in the pharmaceutical industry.


4去1



2. What are the Uses of a Hot Air Circulation Oven?

it will use the hot air circulation pharmaceutical oven in performing a lot of things other than drying.

Here are some of the applications where you will need to use the hot air circulation oven.

• Drying of Pharmaceutical Products

it will use the pharmaceutical hot air circulating oven to get rid of excess moisture by reliably, safely, and precisely heating the products.

• Sterilization of Pharmaceutical Products

Hot-air pharmaceutical ovens produce enough heat which can denature and destroy transmissible agents.

The heat is enough to kill and eliminate transmissible agents such as prions, viruses, fungi, and bacteria from pharmaceutical products.

Hywell MachineryCo sterilization oven working temperature that can reach 250 degrees and reach GMP. it can sterilize the ampoule bottle and oral liquid bottle.

• Curing of Pharmaceutical Products

You will use the hot air circulation pharmaceutical oven to create high bonds between different monomers in different materials.

Additionally, it comes in handy in assisting to the growth of different materials under increasing temperature rates.

• Tempering of Pharmaceutical Products

You will use the pharma hot air circulation oven to release brittleness in the hard-pharmaceutical material thus getting rid of internal strain.

It involves the application of different heat levels on pharmaceutical products through the convection method before cooling them down.

• Testing Pharmaceutical Products

You can test the strength and stability of different pharmaceutical products by applying different levels of heat to the products.

• Aging of Pharmaceutical Products

Aging involves two main factors including time and temperature where the products will have a change in physical properties.

You can use a hot air circulation oven to age different types of pharmaceutical products.



3. Hot air Circulation Oven Specifications

Model

Loading  (Kg)

Fan power (KW)

Heating method

Quantity of Tray cart

Quantity of Tray

Machine size
  (L x W x H) M

Weight

(Kg)

CT-C-O

60

0.75

Electrical /steam

1

24

1.4×1.2×2.2

560

CT-C-I

120

0.75

Electrical /steam

2

48

2.3×1.2×2.2

1300

CT-C-II

240

0.75x2

Electrical /steam

4

96

2.3×2.2×2.2

1830

CT-C-III

360

0.75x3

Electrical /steam

6

144

3.4×2.2×2.2

2200

CT-C-IV

480

0.75x4

Electrical /steam

8

192

4.46×2.2×2.2

2800

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

2.All specifications of hot air circulation oven are as accurate as is reasonably   possible, but they are not binding.



4. What are the Main Advantages of a Hot Air Circulation Oven?

Hywell machinery CT series hot air circulation oven had the following advantages over conventional solutions.

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

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

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

4. Hot air circulating drying oven is made of stainless steel, equipped with an axial flow fan, an 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 oven can be used to dry a variety of fruits like blueberries, bananas, 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. Commonly using steam pressure 0.2-0.8MPa (2-8 bar), if machine heated by steam (steam supplied by client).

9. For operation temperatures of over 140˚C or less than 60˚C, please indicate when ordering.

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

11. Hywell machinery can design and manufacture the explosion-proof hot air circulation oven to dry flammable and explosive materials.

12. Hywell can design a hot air circulation oven that set working time and delays the turn-off fan to reduce the heater's hot energy gathering inside the hot air chest.



5. Which Options are Available When Ordering the Hot Air Circulation Oven?

1. Electrical components of the hot air circulation dryer

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

2. Steel model of the tray-type hot air circulation oven

It can choices from SS304, SS316L, Titanium, and Duplex stainless steel.

3. Control system of the hot air circulation oven

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

4. Heating method of the hot air circulation dryer.

it can configure based on the customer site conditions, such as steam, and electricity.



6. Which industries are hot air circulation ovens mainly used for?

The hot air circulating oven is suitable for the 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 drugs, prepared herbal medicine of Chinese traditional medicine, plaster, powder, particle, drinking agent, pills, packing bottles, pigment, dyestuff, dewatering vegetables, dried fruit pieces, sausage, plastics, resin, electric component and etc.


222

Name1

3333

Name2




7. Which Materials Can Dry Using a Hot Air Circulation Oven?

You can dry different materials using the hot air drying oven.

You should also note that the hot air circulation oven does not dry all the materials.

You will not dry pharmaceutical products that are sensitive to heat under the pharma hot air oven.

On that note, some of the products which you can dry using the hot air circulation oven are granules, herbs, powders, and fruit slices.



8. How Many Types of Hot Air Circulation Ovens are There?

When looking for a hot air circulation drying oven, you can choose from a wide variety of hot air circulating ovens.

You will find different hot air drying ovens based on varying sizes, working principles, designs, nature of the application, and technology.

Here are the main types of hot air circulation drying ovens that you can choose from:

. Vacuum Shelf Ovens

You will use a vacuum shelf oven for batch processing, especially for batch pharmaceutical equipment.

These vacuum shelf dryers are mainly used for drying heat-sensitive materials

. Clean Process Hot Air Circulation Drying Oven

You can use this hot air circulation drying oven for sterilization of the medical equipment since the temperatures go beyond 260 degrees centigrade.

. Burn-In-Ovens

You can use this oven to produce pharmaceutical electronic products with a maximum temperature of 260 degrees centigrade.

. Depyrogenation and Sterilization Pharma Ovens

You can use this type of pharma oven to dry products that can reach about 536 degrees Fahrenheit.

You also have the freedom of dictating the special features to add to your custom depyrogenation and sterilization oven.



9. Which Are the Main Parts of a Pharmaceutical Hot Air Circulation Oven?

A hot air circulation oven has different parts that it uses to properly dry pharma products.

Here are the main parts of the pharmaceutical hot air circulation oven.

• Heat Source of the Hot Air Circulation Oven

This is the part that produces the source of heat which assists in the drying of different products.

It may opt to choose different sources of heat which include electricity, steam, or infrared sources.

The degree of heat circulation within the hot air circulation oven often depends on the heating element in use.

In case the source of heat is vapor, then the oven can comfortably achieve 50 to 150 degrees centigrade.

Apart from that, in case you are using infrared or an electrical heater, the oven will be able to attain 50 to 300 degrees centigrade.

• Automatic Control System of the Hot Air Circulation Ovens

It will use the automatic control system to control all the functions of the hot air drying oven from one central point.

You can key in all the drying parameters of the pharmaceutical oven depending on your drying specifications.

The key parameters that you should consider include drying time and temperature among other parameters.

• Motor-driven blower of hot air circulation oven

The axial flow blower will blow o push hot air from the different heating elements into the chamber of the oven.

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

• Hot Air Circulation Oven Trays

You will place all the pharmaceutical products on the oven tray before pushing them into the hot air oven.

The number of oven trays will vary according to the structure and design of the pharma oven.

Once-shaping pressed baking trays are specially designed auxiliary products for hot air circulation drying ovens. Generally, the baking tray is made with the standard size of 640*460*45mm and it also can be customized according to customers' demands.

• Inlet and Outlet of the Hot Air Circulation Oven

These are the chambers that allow air to flow freely into and out of the hot air circulation oven.

As the air flows in, it brings dry air and exits through the outlet with the excess moisture from the products.

• Safety Accessories of the Hot Air Circulation Oven

Pharma Drying ovens have automatic over-temperatures and shutdown systems which will protect the heating chamber from overheating.

It will protect all the contents in the heating chamber from damage, especially from excess heat and high temperatures.

• Lockable Door of Hot Air Circulation Oven

This is a safety mechanism where the stainless-steel door allows you to open and close the feeding chamber of the drying oven.

It has locks that are often engaged during the drying process thus increasing the safety mechanism.

• Insulation Mechanism of Hot Air Circulation Ovens

The space between the inner chamber and the external cabinet is filled with Glass wool.

This part will help in reducing heat loss through conduction to the immediate external environment.

• Inner and External Chambers of the Hot Air Circulation Oven

The inner and external chamber of the hot air tray dryer is made of Stainless steel.



10.How Does a Hot Air Circulation Oven Work?

You will successfully operate a hot air circulation oven if you understand the working principles.

The pharmaceutical hot air tray dryer oven depends on the principle of convection to assist in the elimination of excess moisture.

Here is a step-by-step guide on how a hot air circulation pharmaceutical oven works.

• Step One Preparation of the Products

First, you have to make sure that the pharma hot air oven you are using is in proper working condition.

Apart from that, you should also have the materials that you intend to dry on standby.

Power on the machine and insert the products you intend to dry in the oven chamber.

Program the machine from the control panel by configuring the key drying parameters such as time and temperature.

• Step Two: Actual Drying Process

Air will flow through the inlet and into the heating chamber passing the high-efficiency air filter.

Once inside the heating chamber, the heating element will heat the air and then the hot air will rise.

At the same time, the air blower will rotate and distribute the air sufficiently within the heating chamber.

Circulation of air involves hot air rising and flowing to the oven chamber to displace cool air back for heating.

The process continues until the whole chamber heats up with hot air.

As the air blows under and over the drying trays, it takes with it, excess moisture from the materials you intend to dry.

There is a fair distribution of hot air within the ovens thus leading to a uniform drying process of the pharma products.

The humid air with excess moisture will flow out through the outlet of the hot air circulation oven.

• Step Three: Finished the drying and take out the products

Finally, after the whole process, the pharma hot air tray oven will automatically stop after the drying time runs out.

Remove the materials from the oven and allow them to cool down.



11. Which is the Best Material for Making a Hot Air Circulation Oven?

Stainless steel is the best material that you can use to make hot air circulation in a pharmaceutical hot air drying oven. but Hywell Machinery is able to offer hot air circulation air with contact parts to be built in SS304, SS316L, Titanium, Duplex stainless steel, etc.



12. How Does a Hot Air Circulation Pharmaceutical Oven compare to a Sterilizing Oven?

You can use a hot air circulation pharmaceutical oven for sterilization among other purposes.

You can only use a sterilization oven for killing and eliminating pathogens from different types of pharmaceutical products.

You can also use it in the sterilization of glassware as well as stainless steel.

In both types of ovens, the main drying principle depends on the circulation of hot air in the oven chamber.



13. How Does Oven Drying Compare to Vacuum Drying?

Oven drying depends on evaporation working principles to get rid of excess moisture from different pharmaceutical products.

It depends on convection heating where the oven will heat the products using a hot air current.

On the other hand, vacuum drying is a process that you can use to dry delicate products.

This involves the removal of excess moisture from flammable products as well as tiny parts of different pharmaceutical products.



14. Which is the Most Suitable Working Temperature for Hot Air Circulation Oven?

In this case, the type of drying oven that you will choose will determine the working temperature.

Apart from that, you will also set the working temperatures of the ovens depending on the material you intend to dry.

Implying that the source of heat for your hot air drying oven will determine the most suitable working temperature for your device.


Previous: 
Next: 

Product Category

Consult Your Hywell Machinery Expert

We help you avoid the pitfalls to deliver the quality and value your fo need, on-time and on-budget.

Products

Why Us

Case Show

Contact Us
   +86-13382828213
   0519-85786231
  Wugang Industrial Park ,Changzhou
© COPYRIGHT 2022 HYWELL MACHINERY ALL RIGHTS RESERVED.