Liquid Nitrogen Freezing Cabinet

The liquid nitrogen freezing cabinet utilizes liquid nitrogen as a refrigerant to directly freeze food. The principle of liquid nitrogen freezing involves spraying low-temperature liquid nitrogen directly onto the food. This method takes advantage of the low temperature (-196°C) achieved through the vaporization of liquid nitrogen at atmospheric pressure and the high heat exchange coefficient from the direct vaporization on the material surface. This process rapidly and deeply freezes the food. Currently, the liquid nitrogen freezing method is widely used in various applications, including seafood, whole fish, meat patties, portioned meat, processed fruits and vegetables, hamburgers, as well as the hardening of ice cream.
The cabinet-type liquid nitrogen quick freezer is equipped with multiple stainless steel material trays. Liquid nitrogen is sprayed directly onto the material surface through nozzles. The material undergoes rapid freezing by exchanging heat with low-temperature nitrogen gas through fan-induced agitation on the tray. The vaporized low-temperature nitrogen gas is expelled through the exhaust port. For freezing 1 kg of food, the consumption of liquid nitrogen ranges between 0.3-1 kg. Due to the short freezing time and the reliance on direct vaporization heat exchange with liquid nitrogen, the dry consumption of frozen products is significantly lower compared to methods using air cooling.

1.Material Stand: Mobile and adjustable 304 stainless steel material stand with a circulating system.
2.Refrigeration System: Liquid nitrogen vaporization refrigeration system, dual electromagnetic valve temperature control, variable frequency dual-fan circulating refrigeration.
3.Insulation: Insulation layer consists of aerogel insulation blanket and polyurethane foam insulation, with a thickness of 160mm, providing excellent insulation performance and safety.
4.System: Utilizes a liquid nitrogen circulating atomization spray system imported from Germany.
5.Air Cooling Circulation: High-power fan with reinforced axial flow fan, adjustable wind speed, ensuring rapid and uniform quick freezing.
6.Control System: Touchscreen + PLC automatic program control system, user-friendly input, intuitive and reliable control, with temperature monitoring and alarm functions, to ensure safe.
7.Maintenance: The bottom of the equipment is equipped with a drainage outlet for easy cleaning and maintenance, designed for longevity with low consumable materials.

Seafood: Various seafood products, both raw and cooked, shell-on and peeled shellfish, various fish slices, soft-shell seafood, sushi, etc.
Poultry and Meat: Diced, sliced, or strip-shaped products of raw or cooked poultry and meat.
Fruits: Strawberries, pineapples, papayas, mangoes, longans, durians, lychees, all diced, sliced, or whole fruits.
Vegetables: Diced or sliced vegetables, sweet corn kernels, fresh beans, pea pods, herbs (such as frozen spinach).
Dairy/Grain Products: Pastries, individually packaged pasta, tofu blocks, tofu skin, etc.