Liquid nitrogen freezing is a mature food freezing technology. Liquid nitrogen quick freezer machine uses the ultra-low cooling capacity of liquid nitrogen at -196℃ to quickly make frozen food pass through the ice crystal formation zone (-0℃--5℃) within 5-20 minutes, preventing large ice crystals from forming in food cells and destroying cell walls. At the same time, it greatly reduces the water loss caused by the strong wind required for traditional mechanical freezing. It has a fast freezing speed and less water loss in frozen products, which completely preserves the original flavor, freshness and quality of the food, realizing the real low-temperature quick freezing of food.

Liquid nitrogen quick freezer

Liquid nitrogen quick freezer machine uses -196℃ liquid nitrogen spray technology to freeze food rapidly. The rapid cooling by liquid nitrogen generates small and uniform ice crystals and the cell walls of food will not be destroyed. The texture and moisture of the food can be completely preserved to guarantee food quality. The liquid nitrogen fast freezer is suitable for freezing bayberry, durian, mushroom, seafood, meat products, cakes, large-volume products, etc.

Liquid nitrogen dosing machine

The liquid nitrogen dosing machine is an ultra-efficient nitrogen dosing system designed for low-speed or high-speed production lines. It uses advanced vacuum insulation technology to inject -196℃ liquid nitrogen into each container. The injected liquid nitrogen then vaporizes to create internal pressure in container, achieving pressurization and deoxygenation purpose. The liquid nitrogen injection machine is suitable for pressurization and deoxygenation of bottled liquids or solids, such as edible oil, beverages, juice, milk, mineral water, potato chips, milk powder, dried fruits, nuts and cereals, etc.

Liquid nitrogen container

• Self-pressurizing liquid nitrogen container
• Biological liquid nitrogen container
• Sample storage liquid nitrogen container
• Liquid nitrogen cryogenic chamber

Cryogenic valve

Cryogenic valves are designed specifically for operation with cryogenic or ultra-low-temperature media. At extremely low temperatures, they perform functions such as opening and closing, flow regulation, check control, and safety protection for the media that are flammable, explosive, prone to vaporization, or highly permeable (e.g., liquefied natural gas, liquid oxygen, liquid nitrogen, and liquid hydrogen). Common types of cryogenic valves include cryogenic ball valves, gate valves, globe valves, check valves, and safety valves etc.

More cryogenic equipment

• Cryogenic pump
• Vacuum pipe