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How to choose a drying oven?

As a kind of thermal auxiliary equipment, there are various kinds of drying ovens due to the difference of heating principle, temperature control precision, material, usage and size, etc. Then in the process of purchasing, it is better to understand the following points in order to clarify what kind of drying oven is what you want.
1, Purchase what type of drying oven.
If you choose to purchase equipment, you need to have a basic understanding of the equipment, there are many types of drying ovens on the market.
According to the different drying products, the drying oven can be classified as: experimental drying oven, camera drying oven, medicine drying oven, grain drying oven, etc.
According to the working principle of drying ovens, they can be classified as: vacuum drying ovens, blast drying ovens, infrared drying ovens, microwave drying ovens, etc.
According to the different characteristics of the drying oven can be classified as: physical and chemical drying oven, precision type drying oven, high temperature drying oven, low temperature drying oven, explosion-proof drying oven, etc.
According to the size of the drying oven can be divided into: small drying oven, large (industrial) drying oven, drying room, etc..
2, clear samples want to achieve what kind of results.
Often people ask whether such and such effect can be achieved, how much can be baked at one time and other such questions. The drying oven is used as a production or experimental tool, only to provide a heating and constant temperature environment, as for the effect achieved by the samples inside, it needs to be tested to achieve the desired effect. It is important to accurately describe the effect achieved by the experimental sample and the parameters required to achieve such an effect. Generally manufacturers can only give data for reference, the precise achievement of the desired effect is still subject to testing. We sincerely welcome all customers to come to our company (Guangzhou Kenton laboratory Co., Ltd.) for testing, or you can send samples to us for testing.
3, The temperature range of the sample and the requirements of the material.
Firstly, the temperature control range. Make it clear how much temperature your products are used in or how much temperature range you need to conduct experiments in, this is a necessary parameter for choosing the drying oven. At present, most of the domestic drying ovens temperature range between room temperature +5°C~300°C, (Guangzhou Kenton laboratory Co., Ltd.) production of high temperature drying oven can reach 600°C. One point to note is that some biopharmaceutical chemical research and other experiments that require data, such experiments are more demanding, to refer to the temperature accuracy, uniformity and fluctuation of the drying oven. Above 600°C to 1000°C ~ 1300°C, called muffle furnace, also called resistance furnace, commonly used in industrial and mining enterprises accessories for heat treatment and coal analysis.
It should be noted that the nominal temperature range of the drying oven chosen for purchase is preferably greater than the use temperature of the experimental sample, for example, if the use temperature of the sample is 200°C, then the temperature range of the drying oven chosen is recommended to be +5°C to 250°C or 300°C at room temperature, rather than +5°C to 200°C at room temperature.
Secondly, the sample material. Whether the sample is corrosive or corrosive gas is generated during the drying process is the main basis for choosing the inner material of the drying oven or even the outer box material. Non-corrosive can choose galvanized plate for the inner chamber. Galvanized plate refers to the steel plate with a layer of zinc plated on the surface, the surface has a certain degree of rust prevention and weak corrosion prevention, but it cannot be compared with stainless steel, and it will still rust when used for a certain period of time, and the corrosion resistance is not strong. Domestic drying ovens are mainly used 316, 304, 201 three stainless steel materials, but also optional chemical corrosion-resistant acid-resistant steel. 316 than 304 in high-temperature environment is more resistant to corrosion, density than 304 to high. In the application field 304 stainless steel is widely used in industrial and home decoration industry and food medical industry, 316 stainless steel is more used in seawater related equipment and food grade industrial class. Therefore, in terms of corrosion resistance, 316>304>201>galvanised sheet. The inner chamber material of the Kenton series produced by Guangzhou Kenton Instruments Co., Ltd. is divided into two types of stainless steel 201 and galvanised sheet, and the outer box is sprayed with carbon steel. The inner chamber of the full series of Hengli comes with 304 as standard and can be ordered if 316 is required.
Furthermore, whether the samples are flammable and explosive or flammable and explosive gases are generated during the drying process. At this time, we should choose the explosion-proof drying oven, plus the over-temperature alarm power-off function, while the best flame retardant function, flammable and explosive volatile gases are best discharged to the outside of the oven or outdoor through the exhaust pipe.
4, The size of the sample or the amount that needs to be processed at one time.
Laboratory drying ovens are not used particularly large, this problem is mainly for large ovens, such as paper, advertising boards, production moulds, barrels of paint, etc. or the need for batch processing of electronic components, circuit boards and grains, etc., it is best to measure the sample size in advance, a drying needs to deal with how much a small amount of manufacturers to facilitate reference design. Of course, there are also tunnel ovens and large walk-in ovens for drying and processing on the assembly line. Guangzhou Kenton laboratory co., Ltd. as the leading enterprise of drying oven in South China, can customize different specification material and push type large oven, using intelligent temperature control instrument, large diameter centrifugal wind wheel, high temperature bearing, cast aluminum shell high power motor, etc., with the advantages of large storage capacity, fast temperature rise, easy to use, etc.
 
To sum up briefly, according to the use temperature of their own samples to choose the temperature range of the drying oven, according to the size of the sample or the number of batch processing to choose the size of the inner chamber, according to the corrosiveness of the sample to choose the inner chamber material, and then according to the requirements of temperature control precision to choose different principles of heating accessories, insulation materials, instrument accessories, etc.

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