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Liquid nitrogen freezing is a mature food freezing technology. Liquid nitrogen quick freezer 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 (3%-5%) 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. In addition, liquid nitrogen quick freezer can produce continuously without stopping for defrosting, which is more advantageous than traditional ammonia machines and Freon refrigerators. It is a high-efficiency, environmentally friendly and energy-saving multifunctional quick freezing machine equipment.

Liquid nitrogen freezer

Tunnel liquid nitrogen quick freezer

The output of tunnel liquid nitrogen quick freezer is generally 100kg/h-2000kg/h. The basic general type is a flat mesh belt quick freezer, which is suitable for quick freezing of meat, prepared food, dishes, ice cream, etc. Among them, the tunnel pre-cooling quick freezer creatively combines pre-cooling and quick freezing into one, saving energy, and is suitable for quick freezing of high-temperature food; while the tunnel plate belt quick freezer is suitable for quick freezing of aquatic products.

Spiral liquid nitrogen quick freezer

The output of spiral liquid nitrogen quick freezer is generally 500-1500kg/h. The equipment has only one drum, and the conveyor belt moves in a spiral upward or spiral downward on the drum. Compared with the tunnel liquid nitrogen quick freezer, the spiral quick freezer occupies a smaller area and has a larger processing capacity.

Cabinet-type quick freezer

Cabinet liquid nitrogen quick freezer is suitable for baked goods, seafood, meat products, cakes, large-volume products and products that need to be frozen for a long time. It is suitable for small batch production and food quick freezing process experiments. It occupies a small area and requires low investment.