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Product Details

WHAT IS A LIQUID NITROGEN FREEZER?

Simply put, a nitrogen freezer is just a freezer which can freeze products rapidly with very low temperature (0℃ to -196℃).

Liquid nitrogen freezer is a kind of blast or shock freezers that uses liquid nitrogen (LN2) as the cryogen to freeze large quantities of goods very quickly. When liquid nitrogen (LN2) vaporizes or gasifies, it absorbs the heat of the processed goods efficiently and instantly. The vaporizing-spraying system pushes the vaporized nitrogen all around the goods directly with a high velocity, to reduce the temperature of products as quickly as possible.

WHY USE A LIQUID NITROGEN FREEZER?

Nitrogen is a kind of toxic-free cryogen, poisonless and harmless. The vaporizing process of liquid nitrogen itself absorbs heat rapidly, no need condenser or compressor as those conventional freezers do. It is totally safe and environment-friendly. Utilizes a minimum amount of floor space and electricity.

When you freeze foodstuffs, the water inside crystallizes into ice. The longer the freezing process takes, the larger the ice crystals. Larger ice crystals damage materials by causing phenomena like cell bursting (as shown in the picture below), which affects quality and flavor of foods.

The freezing speed of liquid nitrogen freezer is three times faster than conventional quick-frozen equipment. Rapid freezing causes the crystals formed to be very small, which does less damage and preserves food at a higher quality. Even more usefully, once the food is "quick frozen" it can be moved into a normal freezer for longer term storage.

WHAT ARE THE BENEFITS?

Wide Suitability 0℃ to -196℃ working temperature, freely regulated, 1℃ to 2℃ control precison, fit different kinds of food.	Improved Productivity Freezing speed is 3 times faster than conventional freezers. Product center temperature reaches -18℃ quickly.
Save Labor Costs Optimized mechanical structure makes it easier to be operated, easy to clean and maintain, save labor and time costs.	Maintain Original Texture and flavor 0.25% ~ 0.5% low drip loss, instant freezing, preserve original appearance, color, flavor and nutrition of the processed products.
Safe and Environment-Friendly Nitrogen is toxic-free, poisonless and harmless to food, human and the environment. No pollution gas exhausts.	Low Noise Emission No condensor or compressor, small energy consumption, high reliability and performance, low operation noises.
Widely Used in Food Industries As a proven technology, liquid nitrogen freezers are widely applied to aquatic products, bakery products, meat, poultry, fruits, vetegables, etc.	Improved Food Safety Overall body of the equipment is made of SUS304 stainless steel. Nitrogen is non-toxic, poisonless and harmless.
Utilizes Minimum Amount of Floor Space The sizes of liquid nitrogen cryogenic freezers are much smaller comparing with conventional freezers, utilizes a minimum amount of floor space, easy to install and set up.	Extended Shelf Life and Profitability Liquid nitrogen flash freezers perfectly maintain the original texture, color and flavor of food, no damages to cell structures. Processed food have longer shelf-life and better quality.

Product Name	Fish/Meat/Seafood/Fruits/Vegetables Commercial Cryogenic Quick Freezing Blast Liquid Nitrogen IQF Tunnel Freezer
Working Temperature	0℃ to -196℃
Tunnel Temperature	- 60℃ to -150℃
Freezing Time	5 to 120min, stepless adjustable
Conveyor Operation Time	10 to 40 minutes, adjustable
Material Input Height	50mm to 150mm, adjustable
Tunnel Inside Effective Height	400mm
Diameter of Exhaust Outlet	300mm