There are four types of liquid nitrogen quick-freezers: quick-freezing, spiral, box and immersion; the liquid nitrogen quick-freezing machine uses the low cooling capacity of liquid nitrogen—196℃ to quickly take away the heat of the food, and the freezing speed is fast, and the freezing is quickly locked. It can reduce moisture loss and ensure the freshness and appearance of food, which is not available in traditional compressor refrigeration.
With the development of the economy and the improvement of people's living standards, liquid nitrogen quick-freezing machines will be more widely used for quick-freezing and fresh-keeping in the food industry and marine fisheries.

Brief introduction and characteristics of quick-freezing liquid nitrogen quick-freezing machine:

1. Adopt a simple, clean and convenient design concept, no need to stop defrosting, continuous production can improve production efficiency;

2. The working temperature of the liquid nitrogen quick-freezer can be arbitrarily set at -30～-120℃, which can quick-freeze all kinds of seafood, meat, fish and whole fish, fruits and vegetables, steamed buns, instant fast food and baked goods, etc.

3. The operating system adopts a touch screen control panel, which is a one-button start mode, which is simple and easy to learn. All operating data is clear at a glance, and the operating speed and freezing temperature can be adjusted at any time, and the temperature changes in the quick freezing and quick freezing can be monitored in real time;

4. The quick-freezing internal cooling capacity circulation and exhaust air system is composed of a motor and a low-temperature fan (technology). The low-temperature fan in the quick-freezing does not need to be stopped for defrosting, and can run continuously without being frozen, while ensuring that the food is quickly and uniformly frozen and the refrigerant is Efficient use;

5. The amount of liquid nitrogen required for quick freezing is automatically adjusted according to the set temperature to automatically adjust the opening of the valve. While ensuring the uniform temperature in the quick freezing, the amount of liquid nitrogen can be saved to a limit;

6. ​​The quick-freezing upper cover of the quick-freezing machine can be raised and lowered vertically, which can fully and conveniently clean the inside of the quick-freeze to ensure the hygiene of the frozen food;

7. The quick-freezing machine adopts a segmented design, which is quick and convenient for hoisting and assembly on site.