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What should we pay attention to when choosing vacuum drying oven?

What should I pay attention to when purchasing a vacuum drying oven? As a kind of equipment widely used in various industries, the drying oven is not only rich in variety, but also mature in technology. Since many manufacturers produce drying ovens, this has led to a mixed market. At the same time, it also brought inconvenience to our purchase. Below I will explain how to choose a vacuum drying oven.

drying oven

drying oven

When purchasing a vacuum drying oven, you can consider it from the following aspects.

First, look at the outer casing of the drying oven. Most of the drying oven shells are made of ordinary cold-rolled steel sheets. The surface is treated with high-strength electrostatic spray coating. The paint film is smooth and firm, and the difference is mainly in the thickness of the steel sheet.For the vacuum drying oven, the internal pressure on the tank is large due to the internal vacuum. The outer casing is thicker than the blast drying oven. In the case of the same quality of the steel plate, the thicker the outer casing, the longer the service life of the drying oven. If no vacuum is applied, the outer casing is relatively thin and relatively inexpensive. If there is special demand, the outer casing will be made of high quality stainless steel or special steel, which is of course relatively expensive.

Secondly, the door of the drying box is usually provided with a glass window. For safety reasons, double-layer tempered glass is generally used, but the thickness is different. The dry oven doors of Henan Lanfan are all made of thick borosilicate tempered glass. Although the price is slightly expensive, the clarity is good, the safety is good, and the service life is long.

Drying tank liner

Drying tank liner

The inner tank of the drying oven generally has two options, one is galvanized sheet and the other is mirror stainless steel. Galvanized sheets are prone to rust during long-term use, which is not conducive to maintenance, but at a low price; mirror stainless steel has a neat appearance, is easy to maintain, and has a long service life, but at a slightly higher price. Stainless steel is the best choice for high-demand industries such as food and medicine.

The number of sample racks in the box is generally customized according to the size of the drying box and customer needs. Generally, the good shelf is made of stainless steel, and the cost is high. In terms of thermal efficiency, the number of shelf layers should not be too much. Otherwise, the gap is too small, which is not conducive to the circulation of internal heat and increase the load of the fan. Therefore, the height between each shelf is usually arranged according to the shelf area and the internal space. . So don’t blindly listen to the merchants saying that their products can dry more items. The more items that can be dried, the better it does not represent the drying oven.

There are two kinds of insulation fillers in the middle of the drying oven:

The first type is fiber cotton. The price is suitable but the heat preservation is general. The temperature inside the box needs to be controlled and adjusted by the temperature controller to keep the temperature inside the box. Increasing the working strength of the fan and controller will reduce the service life of the drying box to a certain extent. From the perspective of post-maintenance, the replacement is convenient and the operation is simple. In general, fiber cotton can be used in most cases.

The second type is polyurethane, which is expensive but has better insulation and insulation effects. The high temperature inside the cabinet can be kept stable within a few hours, which will reduce the operating frequency of the controller. Due to the high efficiency of polyurethane insulation, the outside temperature of the cabinet is not too high, which is safe for the operator. In terms of post-maintenance, since the polyurethane is completely injected into the box, it is necessary to remove all the polyurethane during maintenance. After the repair is completed, the injection molding is carried out, and the complicated operation will increase the maintenance cost later.

vacuum drying oven

vacuum drying oven

Therefore, when buying a drying oven, not only look at the material, but also look at your own needs, such as the use of the scene, the use of the industry, the cost of comprehensive consideration, there is no need to blindly pursue high prices. Do not listen to the words of the business side, depending on its specific parameters, it is best to choose some guaranteed manufacturers.

The above mentioned text is a brief introduction to what we should pay attention to when choosing vacuum drying oven. If you want to know more the drying oven, please contact with henan lanphan. Henan lanphan is a qualified company, which boasts high reputation both home and board. we are dedicated to the manufacture of laboratory equipment and pipe fittings, which has the good quality and price. If you want to know more about this, please contact with henan lanphan. We are willing to provide you as much information as possible. Our email address is the [email protected]

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