Shrimp IQF Tunnel Freezer for Seafood Processing
Continuous Freezing Solution for Shrimp and Seafood Factories
The CBFI shrimp IQF tunnel freezer is designed for continuous freezing of shrimp and seafood products in industrial processing plants.
The equipment is commonly used in shrimp export factories, seafood processing lines, and frozen aquatic food plants where stable freezing temperature, product quality, and production efficiency are required.
By combining low-temperature airflow with stainless steel belt conveying, the freezer quickly reduces the core temperature of shrimp products while helping maintain texture, appearance, and moisture retention after thawing.
Suitable products include:
- Vannamei shrimp
- Black tiger shrimp
- Peeled shrimp
- Cooked shrimp
- Shell-on shrimp
- Fish fillet
- Squid
- Scallops
- Mixed seafood products
Technical Specifications
| Item | Specification |
|---|---|
| Freezing Capacity | 500–2500 kg/h |
| Final Product Temperature | ≤ -18°C |
| Freezing Temperature | Up to -40°C |
| Freezer Type | Continuous Belt Tunnel Freezer |
| Refrigeration System | Dual Compressor System |
| Refrigerant | NH3 / Freon Optional |
| Material | SUS304 / SUS316L Stainless Steel |
| Control System | PLC Temperature Control |
| Power Consumption | 0.8–1.2 kWh/kg |
| Equipment Length | 12–20 m |
| Optional Functions | CIP Cleaning, Remote Monitoring |
Shrimp Freezing Process
Pre-Cooling
Fresh shrimp first enter the pre-cooling section, where product temperature is reduced before quick freezing.
This stage helps improve freezing efficiency and reduces temperature fluctuation during processing.
Quick Freezing
The shrimp then pass through the low-temperature freezing zone.
Depending on product size and loading conditions, the shrimp core temperature can reach -18°C within approximately 20–30 minutes.
Rapid freezing helps reduce large ice crystal formation and improves product condition after thawing.
Temperature Stabilization
After freezing, the product temperature becomes more uniform before packaging or transfer to cold storage.
This helps improve overall frozen product consistency during transportation and storage.
Main Features
Continuous Production
The tunnel freezer supports continuous automatic operation and is suitable for medium and large seafood processing plants.
Stable Freezing Performance
The airflow circulation system and temperature control system help maintain stable freezing conditions during production.
Easy Cleaning and Maintenance
The equipment structure is designed for daily cleaning and routine maintenance in seafood processing environments.
Optional CIP cleaning systems are available.
Stainless Steel Structure
Food-contact parts are manufactured using food-grade stainless steel suitable for humid and low-temperature environments.
Flexible Configuration
The freezer can be configured according to processing capacity, factory layout, and refrigeration requirements.
Optional integration with weighing, sorting, glazing, and packaging systems is available.
Applications
The freezer is suitable for:
- Shrimp processing plants
- Seafood export factories
- Frozen seafood production lines
- Aquatic food processing facilities
- Cold chain food factories
- Common frozen products include:
- Shrimp
- Prawn
- Fish fillet
- Squid
- Scallops
- Seafood mixtures
Tunnel Freezer vs Spiral Freezer
| Item | Tunnel Freezer | Spiral Freezer |
|---|---|---|
| Cleaning | Easier | More complex |
| Maintenance | Simpler | More complicated |
| Product Type | Suitable for shrimp and flat seafood | Suitable for mixed products |
| Floor Space | Larger | Smaller |
| Production Method | Continuous conveying | Spiral conveying |
Tunnel freezers are commonly used in shrimp processing because of easier sanitation and stable product handling.
Optional Configurations
Available options include:
SUS316L stainless steel
Ammonia refrigeration system
Freon refrigeration system
Automatic CIP cleaning
Remote monitoring
Automatic sorting integration
Packaging line integration
Customized layouts and processing solutions can be provided according to project requirements.
Frequently Asked Questions
What products can be processed in the freezer?
The freezer is suitable for shrimp, prawn, fish fillet, squid, scallops, and other seafood products.
What is the freezing time?
Most shrimp products can reach a core temperature of -18°C within 20–30 minutes depending on product size and loading density.
Can the system connect with packaging equipment?
Yes. The freezer can be connected with weighing, sorting, glazing, and packaging systems for continuous production.
Which refrigerants are available?
Both ammonia and Freon refrigeration systems are available depending on project requirements and local regulations.
Why Choose CBFI
CBFI focuses on industrial refrigeration and quick freezing equipment for food processing applications.
The company provides:
Seafood freezing solutions
Customized equipment configurations
Installation support
Technical service
Overseas project experience
The equipment is suitable for seafood processing plants looking for stable freezing performance and continuous industrial production.
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