How to choose the right freeze dryer for you? from yongong's blog

There are many types of freeze dryers, and the market is still full of beautiful things, which is easy to be confused. How do we choose the most suitable one among so many products?

1. Manufacturer's choice

Choose a air dryer refrigerant   manufacturer with relatively strong strength, and has many years of experience and technology in the production of freeze dryers, and supports non-standard customization and solutions.

2. Cold trap temperature

A cold trap is a device placed between the freeze-drying chamber and the vacuum pump to trap vapor. The lower the temperature of the cold trap, the stronger the capture ability of the cold trap, but the lower the temperature of the cold trap, the higher the refrigeration requirement, and the higher the machine cost and operating cost. In the absence of special circumstances, the temperature of the cold trap can be selected at -50°C.

3. Amount of condensation

The amount of vapor that can be captured by the cold trap is related to the total amount of sublimation of water or other solvents in the laboratory's daily experimental operation samples.

4. Limit vacuum degree

The limited vacuum degree reflects the leakage of the freeze dryer and the pumping efficiency of the vacuum pump. The vacuum degree of the experimental operation should be within a reasonable range. If the vacuum degree is too high, it is not conducive to heat transfer, and the drying speed will decrease instead.

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