Laboratory ovens are standard equipment found in most labs that are used in high-forced volume thermal convection applications. They provide even heating throughout the entire unit, regardless of the temperature it is set to. Generally speaking, most lab ovens are built to provide temperature ranges of ambient to about 300°C. Ovens with higher operating temperatures are normally used for specialized applications in physics, material processing, and electronics. Other uses include annealing, die-bond curing, drying, polyimide baking, and sterilizing. 

There are various types of lab ovens in the market, but they can generally be categorized into two kinds: a vacuum-type oven or a convection-type oven. Ovens that utilize forced air circulation are widely used in general applications and are often accompanied by features like high thermal efficiency and energy-saving capabilities. On the other hand, vacuum ovens are more suited for drying, determining moisture, desiccating, and outgassing. 

Convection ovens heat samples through natural or forced circulation of hot air while vacuum ovens utilize vacuum pumps to remove air during heating procedures. These systems are usually easy to operate but specific precautions and safety practices we are about to cover must be adhered to at all times to keep your ovens in good working condition. More importantly, these measures also keep the work environment safe and free from fire and health hazards. 

First, make sure to place your oven in a clean, indoor, moisture-proof working room to prevent any corrosion. It should also be kept a good distance from the walls and ceiling, with a 4-inch gap between the wall and an 11-inch gap from the ceiling, at least.

Next, inspect your oven’s voltage requirement. Small ovens will normally require 220V, while larger ovens may need 380V. 

Before you place samples into the oven, check to see that the power supply is connected prior to switching the unit on. For ovens with blowers, keep the blower open during the heating and thermostatic process, otherwise the temperature uniformity may be disrupted and may damage the heating element. Afterwards, adjust the oven’s temperature to suit your sample. 

Keep in mind that dry samples should not be arranged in a dense manner. Do not place your samples at the bottom of the board (heat plate) as this will affect the air cycle within the oven. Also, do not bake bake flammable, explosive items, and volatile and corrosive items.

Once you are done with heating your samples, remember to power the unit off before opening the door. Never touch the samples directly with your hand. Always use a dedicated tool or wear gloves for protection to avoid accidental burns. 

As science and innovation continue to advance, so does the need for better quality lab equipment, which is why BEING has developed an advanced line of laboratory ovens that are suitable for a wide range of industries. To see the complete range of natural convection ovens, mechanical convection ovens, and vacuum ovens, click here.