What is a freeze dryer? What is the structure of the machine?

Freeze dryer is one of the “salvation” solutions for the drying industry. So what do you know about this machine or not? Can it be used in civil or industrial use? These questions are also what many people wonder about today. Come to our article to get more basic knowledge for users to understand more about the structure and composition of the product. 

What is a freeze dryer? Why does the product have such a name? 

Freeze drying machine is now a rather strange name for many people. Because not everyone knows the roles and features that this product brings. Although freeze-drying machines have been applied in daily life, especially in production activities.

In fact, on the market this product has two names called freeze dryer and sublimation dryer. From the name, they also say that the product drying process is a way to post the product at a deep negative temperature and then dry it. And sublimation drying is the process of evaporating the water in the product, then relying on the sublimation process of ice at vacuum pressure. 

The drying process that you should know of this machine

Regardless of the drying process, it begins with a rapid freezing of the product at minus 30 to 40 degrees Celsius within 2 to 6 hours. Next, the book undergoes a vacuum process in the drying chamber. Finally, the sublimation phase of ice is also the longest stage. In this final stage, the temperature will increase again to reach 20 degrees Celsius for the ice to sublimate completely. 

From this drying process, we can calculate a total swirling time of 20 to 40 hours depending on the thickness, thinness as well as texture of the food. The following is the structure of the freeze dryer so you better understand how it works. 

Structure of SUNSAY freeze-drying machine like?

✅ Vacuum pressure tank

✅ Heating unit for the product when it is frozen, pumped and heated for the product to perform the sublimation drying process.

✅ Deep negative refrigeration system to freeze the product and keep the water vaporized from the product when it is sublimated.

✅ Vacuum pump ensures a vacuum environment during the drying process.

✅ Electrical system controls the sublimation drying process

What is the benefit when this dryer has such a structure? 

Designed with two separate chambers, chamber 1 is the product drying chamber, the right chamber is a steam condenser drill with a cold temperature of -50 degrees Celsius. During the drying process, the ice inside the left chamber will rise. flowers and is sucked to the right chamber to condense into steam. 

This separate structure prevents steam from being sucked through the vacuum pump which will cause the oil to dry quickly. In general, the structure of this machine is quite complicated, so we only analyze some basic information about this system. 

SUNSAY – the leading supplier of lyophilized dryers

To be able to apply it in practice and use it effectively in production activities, it is extremely important that you find yourself a reputable supplier in the market. Quality products with diverse features will meet the usage requirements of all users and give you the best productivity. Currently, there are many suppliers of this product. In which SUNSAY is a suggestion that you can refer to to buy a sublimation dryer

SUNSAY is known as one of the most prestigious brands today specializing in providing dryer products. We are so popular with our customers that we have a wide range of products for you to choose from. Not only that, but our products are also the most affordable and suitable for many people’s economic conditions. For direct advice to customers, please call the hotline number +84 94.110.8888 . 

Customer satisfaction is the motto that we always aim for. That’s why the company always tries to give you the fastest answers via the hotline. Call us now or get a direct quote below to make the most accurate and quality purchasing decisions.

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