I. Main application areas of liquid nitrogen rapid freezing cabinets: 

1. Food processing (the most mainstream application): Fresh preservation of premium seafood such as salmon, lobster, sea cucumber, and abalone, preventing cell rupture and minimizing juice loss.Fresh fruits and vegetables: strawberries, blueberries, durians, lychees, etc., retain their crisp texture and vitamins while extending their shelf life.Prepared meat and poultry dishes: beef, lamb, poultry, prepared packages, ready-to-eat meals, and premium pastries. Rapid freezing preserves freshness and inhibits bacterial growth.Premium desserts: Ice cream and mousse, featuring delicate ice crystals and a smooth texture.

2. Biomedical and Scientific Research: Biobank Sample Preservation – Ultra-low temperature rapid freezing and temporary storage of cells, tissues, blood, plasma, stem cells, etc.Low-temperature handling of vaccines/reagents: Rapid freezing and low-temperature storage of sensitive vaccines and biological agents.Research Experiment: Rapid freezing and low-temperature pretreatment of samples in biological, medical, and materials science experiments.

3. Cold Assembly of Precision Industrial Manufacturing Components: A cold assembly process employed for shafts, bushings, bearings, and similar components subjected to low-temperature shrinkage, achieving interference fit.Low-temperature performance testing: Evaluation of low-temperature toughness, brittleness, and strength for metals, plastics, and composite materials.Cold treatment of special components: Cold working hardening of tools and molds to enhance hardness and wear resistance.

4. Cold chain logistics and new retail for high-value fresh produce circulation: Premium ingredients and imported fresh produce are rapidly frozen and then transferred, ensuring consistent quality throughout the process.Central Catering Kitchen: For chain restaurants, pre-made dishes are frozen to maintain freshness.

II.  Key Technical Specifications:

1. Refrigerant: Liquid nitrogen;

2. Operating temperature range: Room temperature to-196°C;

3. Cooling method: Multi-point atomization spray;

4. Cooling rate: 5–50°C/min (when the unit is idle);

5. Temperature control: Intelligent control system;

6. Power supply specifications: AC 380V/50Hz (220V available);

III.  Functions and Features of the Liquid Nitrogen Rapid Freezing Cabinet:

1. Material Support: A mobile, adjustable 304 stainless steel material rack;

2. Refrigeration System: A liquid nitrogen vaporization evaporation refrigeration system with pneumatic solenoid valves for temperature regulation and variable-frequency dual-fan circulation cooling;

3. Equipment Insulation: An insulation layer made of polyurethane foam with a thickness of 150 mm, offering excellent thermal insulation and safety;

4. Equipment System: A liquid nitrogen circulation atomization spray system utilizing imported German technology;

5. Air-Cooled Circulation: High-power fans paired with reinforced axial fans, featuring adjustable airflow speed for rapid and uniform cooling;

6. Equipment Control: A touchscreen + PLC-based automatic program control system with user-friendly inputs, intuitive and reliable operation, and temperature monitoring/alarm functions to ensure safe equipment and process operation;

7. Equipment Maintenance: Easy cleaning and maintenance, with a long service life and low consumables design.

Four model specifications: