Selecting the Right Forced Convection Unit

Forced Ovens Lab Oven Buying Tips Lab Ovens Mechanical Oven

Forced convection ovens are suitable for multiple heating applications such as drying, baking, and sterilization applications of non-volatile samples in industrial, mining, schools, medical, and scientific research units. Forced convection ovens combine horizontal and vertical air circulation to provide excellent temperature consistency.


These ovens are generally made up of high quality steel plates while the inner room is also built from stainless steel plates. Some units adopt intelligent temperature controllers with timing functions that enable faster temperature recovery time. Forced convection ovens are mainly composed of a circulating fan, stainless steel electric heater, and temperature controller. In addition, the oven door uses a double layer steel tempered glass door that makes it easier to observe items in the box clearly. 


Choosing from different types of forced convection units can be timely and confusing. To help you select the right unit and trim down your search time, industry experts from BEING Instruments have gathered the essential factors to help you determine the right fit for your heating needs. 


Vertical or Horizontal Airflow?

Ovens are mainly divided into two kinds of structures, desktop structure and vertical structure. Desktop structure refers to the horizontal air distribution within the chamber. The wind duct is located on the back side and the air in the working room forms the horizontal convection, the capacity for these units ranges from 30L to 240L.

On the other hand, a vertical structure forced convection oven distributes the heat through an upward and downward movement. This forms a vertical heat distribution in the chamber. The usual capacity ranges from 30L to 620L or greater.

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What oven size do you need?

When it comes to considering the oven’s size, the ideal size will depend on your samples size and volume. During the drying process, the quantity and arrangement of the laboratory items affect the uniformity of temperature in the work room. 

When the temperature uniformity requirement is higher, it is suggested to reduce the sample quantity or choose a large type of oven to ensure proper circulation is present in workroom. Maintain 2~3cm or greater clearance to samples from the inner wall or inlet and outlet, conducive to the internal hot air convection in the studio.

What is your Application Temperature Requirement?

As for the oven’s temperature, this usually comes in three ranges: Rt+10-200℃, Rt+10-250℃, Rt+10-300℃. The suitable temperature range can be chosen according to the required dry condition of your application. 

Any Heating Range Requirements?

The normal heating rate of the forced convection oven averages from 2~8℃/min. Low temperature heats samples fast while high temperature heats the sample slowly. You can increase heating power by increasing the temperature rate. However, if the heating power of the oven increases, the temperature overshoot will also increase.

Lastly, If your samples require a different kinds of heating settings, heat preservation control, or precise temperature control rates, opt for ovens with temperature controller. 


Remember to place your forced convection oven in the room with good ventilation conditions and away from inflammable and explosive items. Avoid crowded areas and allocate enough space to measure the air circulation. 


BEING Instruments is a leading provider of reliable laboratory equipment to researchers and lab technicians across the globe. Discover high performing forced oven by browsing through our collection of forced convection units here: Forced Convection Ovens

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