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LND
WUYE Machinery
12 months
Customized
Nitrogen
Crayfish Aquatic Products Frozen Fish Liquid Nitrogen Freezer

The freezing process is a critical juncture in aquatic product processing, dictating the final texture, flavor, and visual appeal of the seafood. Our liquid nitrogen freezing system transforms this crucial step by dropping temperatures instantaneously, creating a micro-crystallization effect within the cellular structure of crayfish, fish, and squid. Unlike conventional freezing methods that generate large, jagged ice crystals which puncture cell walls and lead to heavy drip loss upon thawing, this advanced thermal exchange technology ensures the cellular integrity remains completely intact. When end-users thaw the product, they will experience the firm, resilient snap of freshly caught seafood, accompanied by its natural, oceanic aroma and vibrant, translucent coloration. The heavy-duty, meticulously welded stainless steel construction speaks to its industrial resilience, providing a smooth, cold-to-the-touch surface that resists the harsh, corrosive environments of high-volume seafood processing facilities. By integrating this equipment into your processing line, you are fundamentally upgrading the sensory experience of your final product, preserving the delicate, buttery taste of premium fish and the sweet, tender bite of fresh crayfish, ultimately commanding a higher market value and ensuring unparalleled consistency across every batch.
Automatic temperature control
Continuous production
Easy to operate
Save liquid nitrogen

| Product name | Liquid nitrogen quick freeze | Temperature | -40℃~0℃ |
| Application | Pasta, fruits and vegetables, seafood, etc. | Quick freezing time | 10-15 minutes |
| Capacity | 500-3000kg/h | Structural features | Up and down lifting structure |
| Mesh belt material | Food grade stainless steel SUS304 | Mesh belt width | 1000~1600mm |
10 minutes quick freezing, -196℃ quick freezing
Liquid nitrogen instantaneously vaporizes and cools down the food by 5 to 10 times, and can quickly pass through the food's ice crystal point (0 to -5°C). The tiny ice crystals are not easy to damage the cell walls, and the loss of juice is minimized during thawing, so the flavor and quality of the food are best preserved.
Why choose liquid nitrogen quick freezer ? |
√ √ √ √ √ √ √ √ | -196℃ Quick- freezing 10-30 minutes After thawing, the water loss rate is about 5%, and the original flavor is pure The ice crystals are small and in good condition Large-scale quick-frozen production The lifting type is easy to clean Ensure food safety and hygiene Fully automatic continuous production Labor saving | × × × × × × × × × | -30°C Cold room 6-48 hours The shrinkage rate after thawing is more than 30%. Poor taste The frost is thick and sticky The capacity is small.Product quality is easy to change The storage is not easy to clean. Dirt accumulates over time Batch production requires manual handling.Labor-intensive |

Food grade stainless steel
High strength, tensile resistance, corrosion resistance
The mesh and shaft are thickened, and the service life is long.
Up and down lifting structure
Up and down lifting structure
Up and down split lifting structure,
Suitable for HACCP management requirements
Independent fan
The stirring fan is divided into independent zones to ensure uniform temperature in each zone without turbulence interference

| Frozen squid | Frozen bamboo shoots | Frozen crayfish |
Selecting the right equipment manufacturer is a strategic decision that impacts your operational stability for years. We engineer solutions that prioritize longevity, performance, and seamless integration into your existing infrastructure. Our commitment to industrial excellence ensures that every unit we deliver is a reliable, high-performing asset for your facility.
Uncompromising Material Quality: We source only the highest grade SUS304 stainless steel, ensuring our machinery withstands the rigorous, wet, and saline environments typical of aquatic processing.
Precision Engineering: Every component, from the thickened mesh belts to the reinforced drive shafts, is meticulously crafted to prevent mechanical fatigue during continuous, heavy-duty operation.
Tailored Industrial Solutions: We do not believe in one-size-fits-all. Our engineering team customizes voltage, belt widths, and capacity parameters to align perfectly with your specific production goals.
Rigorous Quality Assurance: Each system undergoes exhaustive thermal and mechanical testing before dispatch, guaranteeing flawless performance from the moment of installation.
Dedicated Technical Support: Backed by a comprehensive 12-month warranty, our specialized technical team provides rapid, expert guidance to minimize downtime and keep your production lines moving efficiently.

While the initial consumable cost of liquid nitrogen exists, the system's advanced gas recirculation technology captures and reuses the exhaust vapor, creating a highly efficient thermal loop. This significantly lowers overall consumption rates. Furthermore, the dramatic increase in product yield—due to retaining 95% of the product's moisture compared to traditional methods—and the ability to command premium prices for superior quality often completely offset the gas costs, resulting in a net increase in overall profitability.
Absolutely. The conveyor is constructed from thickened, high-strength SUS304 stainless steel and is supported by reinforced shafts. It is specifically engineered to resist tensile stress and deformation. This allows it to effortlessly support heavy loads of dense fish fillets, irregularly shaped whole crayfish, and large squid without compromising smooth operation or causing mechanical wear over time.
The primary architectural requirement is sufficient vertical clearance to allow the upper housing to lift fully for daily cleaning and maintenance. During the consultation phase, our engineering team will provide detailed spatial blueprints. Additionally, you will need a stable, insulated liquid nitrogen supply line connected to an external tank, and the customized electrical connections specified for your region's power grid.
Independent zoning prevents chaotic air turbulence and localized temperature fluctuations within the tunnel. Each section maintains a strict, uniform thermal profile driven by its own dedicated fan. This guarantees that a product entering the chamber experiences a consistent, predictable chilling curve, ensuring every single item across the 1000-1600mm belt achieves the exact same core temperature simultaneously.
Not at all; in fact, sanitation is one of its strongest features. The split-lifting design is specifically engineered to solve the hygiene challenges of seafood processing. By raising the upper section, maintenance crews gain completely unobstructed, 360-degree access to the belt and internal chassis. The food-grade stainless steel surfaces are completely smooth, allowing high-pressure hoses and foaming agents to easily wash away oils, mud, and organic debris without leaving any residue in hidden corners.