What is a domestic freeze dryer?

The Home Freeze Dryer simplifies the tedious operation of traditional laboratory freeze dryers, prevents contamination of the material and accelerates the sublimation of the material's moisture.

The freeze dryer is equipped with heating and temperature control programmable functions, and the freeze drying curve can be viewed, making it easy for the user to observe the freeze drying process of the material.

What is vacuum freeze drying?

A vacuum freeze dryer is a technical method of pre-freezing aqueous items and then sublimating the water under vacuum to obtain dried items.

Freeze-dried products are easy to store for a long time, and after adding water they can be restored to their pre-freeze-dried state and maintain their original biochemical properties.

For heat-sensitive substances such as antimicrobials, vaccines, blood products, enzymes, hormones and other biological products, freeze-drying technology shows its superiority.

What are the characteristics of a domestic type freeze dryer?

1、In-situ pre-freeze drying, one key start.

2、Adjustable temperature, controllable production process, set different processes according to different materials.

3、Multi-stage can be set, the program parameters can be modified during the operation, and the vacuum drying curve and data can be recorded online.

4、Touch screen, can set the password to turn on the machine and display the drying curve.

5、Square tray is not easy to deform, easy to operate and easy to clean.

6、Configuration of gas filling valve, optional inert gas filling device.

7、The drying room adopts high translucent colourless transparent organic glass door, which can clearly observe the change process of materials during the operation.

8、Oil-free vacuum pump is optional, which can solve the problems of oil change, oil mist and corrosion.

How to use the domestic freeze dryer?

1、The sample prepared by the freeze dryer should expand its surface area as much as possible, which must not contain acid and alkali substances and volatile organic solvents.

2, the sample must be completely frozen into ice, if there is residual liquid will cause gasification spray.

3、Note that the cold trap of Zhixin freeze dryer is about minus 65 degrees, which can be used as a low temperature refrigerator, but must be operated with insulated gloves to prevent frostbite.

4、Before starting the vacuum pump, check whether the water outlet valve is tightened, whether the filling valve is closed, whether the contact surface of the plexiglass cover and the rubber ring are clean and free of dirt and well sealed.

5、Under normal circumstances, the freeze dryer shall not be used continuously for more than 48 hours.

6、The temperature of the sample gradually decreases during the freezing process, the sample can be taken out and warmed up for a period of time and then continue drying to shorten the drying time.

Technical parameters of domestic freeze dryer