In order to meet the needs of modern laboratories for accuracy, efficiency and safety, we specially introduced this small liquid nitrogen machine designed for small laboratories. It not only incorporates the latest refrigeration technologies, but is also fully optimized for ease of operation and safety, making it ideal for biological sample preservation, material testing and various low-temperature experiments.
In this regard, we have the following advantages
| Model | LPLN3 | LPLN-5 | LPLN-10-W | LPLN-20-W | LPLN-40-W | ||
| Liquid nitrogen production (L/day) | 80 | 120 | 240 | 500 | 720 | 1000 | 1200 |
| Liquid nitrogen production (L/h) | 3 | 5 | 10 | 20 | 30 | 40 | 50 |
| Installed power(kW) | 8 | 9 | 11 | 25 | 25 | 35 | 35 |
| Type(AC V) | 380/50Hz | 380/50Hz | 380/50Hz | 380/50Hz | 380/50Hz | 380/50Hz | 380/50Hz |
| Cooling form | Air cold | Air cold | Water cold | Water cold | Water cold | Water cold | Water cold |




(1) Rapidly freezing and transporting food, or making ice products;
(2) Research on low temperature physics;
(3) Demonstrate the low temperature state in science education. At room temperature, a soft object soaked in liquid nitrogen will be as brittle as glass;
(4) Provides the temperature required for high temperature superconductors to show superconductivity.
(5) It can be used as refrigerant to quickly freeze biological tissue to prevent tissue damage.
(6) It is used for industrial nitrogenous fertilizer.
(7) For chemical detection.
Liquid nitrogen is a liquid with a low temperature of - 196 ºC and is obtained from nitrogen which occupies more than 70% of the air. Inert, colorless, non-toxic, volatile, very wide range of use. Liquid nitrogen is easy to volatilize at low temperature, so it is generally stored in a special container liquid nitrogen tank.
According to the use of liquid nitrogen purity classification, often divided into food grade liquid nitrogen, industrial grade liquid nitrogen. The purity of food grade liquid nitrogen is high, because considering the safety of human consumption, the purity reaches 5 9, that is 99.999%. The purity of industrial grade liquid nitrogen is not as high as that of food grade liquid nitrogen.









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