Liquid Nitrogen Blast Freezer
Industrial Liquid Nitrogen Blast Freezer Manufacturer for Rapid Cryogenic Food Freezing and IQF Processing
Industrial liquid nitrogen blast freezers utilize liquid nitrogen (LN2) at -196 deg C to achieve ultra-fast cryogenic freezing, preserving cellular structures and minimizing moisture loss in food and biological products. Engineered for continuous-duty processing lines and batch production, these systems integrate precise thermal zoning and sanitary stainless steel construction to meet strict food safety standards.
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Freezer Types & Operating Principles
Cabinet Liquid Nitrogen Freezers
Designed for flexible batch processing, artisanal production lines, and multi-product facilities requiring frequent recipe changes.
Capacity Range: 50 kg/h to 300 kg/h per batch cycle
Chamber Volume: Custom configured from 0.5 m3 to 3.0 m3
Best For: Seafood processing, specialty bakery items, premium meat cuts, and pilot plant testing.
Tunnel Liquid Nitrogen Freezers
Engineered for high-throughput, inline industrial processing integrated directly with upstream shaping/packaging and downstream wrapping lines.
Capacity Range: 300 kg/h to 2,000+ kg/h
Belt Width Options: 600 mm, 1,000 mm, 1,500 mm modular food-grade stainless steel mesh or solid belts
Best For: High-volume commercial food plants, ready-to-eat meals, poultry, and IQF (Individually Quick Frozen) fruit/vegetable segments.
Technical Specifications
|
Parameter |
Cabinet Series (Batch) |
Tunnel Series (Continuous) |
High-Capacity Industrial Series |
|
Processing Capacity |
50-300 kg/h |
300-1,000 kg/h |
1,000-2,000+ kg/h |
|
Operating Temperature |
Down to -150 deg C (Adjustable) |
Down to -150 deg C (Adjustable) |
Down to -150 deg C (Adjustable) |
|
Cooling Medium |
Cryogenic Liquid Nitrogen (LN2) |
Cryogenic Liquid Nitrogen (LN2) |
Cryogenic Liquid Nitrogen (LN2) |
|
Nitrogen Consumption |
1.2-1.6 kg LN2 per 1 kg product |
1.1-1.4 kg LN2 per 1 kg product |
1.0-1.2 kg LN2 per 1 kg product |
|
Structure Material |
SUS304 Food-Grade Stainless Steel |
SUS304 / SUS316L Internal Contact Zones |
SUS316L Heavy-Duty Structural Frame |
|
Insulation Layer |
150 mm Polyurethane Foam (PUF) |
150 mm High-Density Polyurethane |
200 mm Vacuum-Insulated / PUF Panels |
|
Control System |
PLC + HMI Touch Screen (Recipe Memory) |
PLC + Multi-Zone PID Temperature Control |
SCADA Integration Ready / Data Logging |
|
Exhaust & Safety |
Oxygen Deficient Alarms & Exhaust Fan |
Auto Exhaust Interlocks & O2 Sensors |
Multi-Point O2 Monitoring & Vent Skids |
Seafood & Aquaculture: Rapid cryogenic crust-freezing of shrimp, fillets, and whole fish to lock in moisture and prevent drip loss upon thawing.
Bakery & Confectionery: Quick-setting bread dough, unbaked pastry layers, and delicate cream cakes without structural cracking.
Meat & Poultry Processing: Pre-cooling and crust-freezing diced meat, patties, and marinated poultry prior to slicing or packaging.
Ready-to-Meals & Prepared Foods: Instant freezing of cooked bento meals, dumplings, and sauces to preserve texture, color, and nutritional profile.
Biotechnology & Special Plant Extracts: Rapid temperature reduction for heat-sensitive organic compounds and biological materials.
Engineering & Customization Options
Multi-Zone Thermal Profiling
Independent fan speeds and nitrogen injection valves across distinct zones to control cooling rates and prevent thermal shock.
Sanitary Modular Conveyor Systems
Quick-release modular mesh belts or solid PTFE-coated belts with automated clean-in-place (CIP) spray headers.
Exhaust Heat Recovery Systems
Optional heat exchangers to capture vented cold nitrogen gas, pre-cooling incoming ambient air or supplying secondary HVAC loops.
Custom Footprint & Layout
Linear, L-shaped, or multi-tier conveyor configurations tailored to restricted floor space in existing production plants.
Manufacturing Quality & Equipment Compliance
Welding & Fabrication: All structural seams and internal product-contact zones are welded using GTAW (TIG) processes by certified welders, followed by continuous mechanical polishing to Ra <= 0.6 um.
Sanitary Design Standards: Internal chambers feature rounded corners, sloped drainage floors, and tool-free removable baffles to eliminate bacterial harborage and simplify daily washdowns.
Electrical & Safety Compliance: Control panels built to CE / UL standards, incorporating emergency stop circuits, low-oxygen ambient monitors, and pneumatic safety shutoff valves.
Factory Acceptance Testing (FAT): Every machine undergoes full electrical load testing, cryogenic temperature drawdown verification, and sensor calibration prior to dispatch.
Material Traceability: Mill test certificates and food-contact compliance declarations supplied for all stainless steel plates, tubing, and conveyor components.
Our Certificate
FAQ
As one of the most professional liquid nitrogen blast freezer manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy advanced liquid nitrogen blast freezer in stock here from our factory. We also accept customized orders.