The Spiral Tunnel Freezer is engineered to provide reliable heat exchange through controlled airflow around the spiral tower and evaporator. Symmetrical circular wind ducts distribute cold air efficiently, accelerate freezing, and reduce cold loss near the product entry and exit points. Top-blow and lateral-blow options allow the airflow pattern to match different foods and production conditions.
Adjustable freezing times from 20 to 90 minutes support prepared foods, meat portions, ice cream, seafood, fruits, vegetables, fried snacks, and small packaged products. The flexible system helps processors maintain quality while adapting to changing production needs.
LSJ Single Drum Spiral IQF Freezer
|
Model |
Capacity (kg/h) |
Freezing Time (min) |
Refrigeration Consumption (kW) |
Install Power (kW) |
Overall Dimension L×W×H (m) |
|
LSJ-I-500 |
500 |
15–90 |
85 |
16.2 |
7×5.8×3.1 |
|
LSJ-I-750 |
750 |
15–90 |
125 |
21.7 |
7.5×6×3.3 |
|
LSJ-I-1000 |
1000 |
15–90 |
165 |
22.9 |
7.7×6×3.8 |
|
LSJ-I-1500 |
1500 |
15–90 |
220 |
24.6 |
8.3×6.2×4.5 |
|
LSJ-I-2000 |
2000 |
15–90 |
300 |
27 |
8.8×6.5×4.8 |
LSJ Double Drum Spiral IQF Freezer
|
Model |
Capacity (kg/h) |
Freezing Time (min) |
Refrigeration Consumption (kW) |
Install Power (kW) |
Overall Dimension L×W×H (m) |
|
LSJ-II-1000 |
1000 |
15–90 |
165 |
20 |
12.5×4.6×3.1 |
|
LSJ-II-1500 |
1500 |
15–90 |
220 |
24 |
13.1×5.0×3.6 |
|
LSJ-II-2000 |
2000 |
15–90 |
300 |
32 |
16.1×5.1×3.9 |
|
LSJ-II-2500 |
2500 |
15–90 |
360 |
40 |
16.1×5.3×4.3 |
|
LSJ-II-3000 |
3000 |
15–90 |
400 |
46 |
17.6×6×4.8 |
Note: Feeding temperature: +15°C; discharging temperature: −18°C; refrigerant: R717 or R22.
Product Features
1. Optimized Airflow: Circular ducts surrounding the Spiral Tunnel Freezer promote efficient air movement and stable heat transfer across the product path.
2. Lower Cold Loss: Carefully designed entry and exit airflow helps retain cooling capacity, supporting consistent freezing and more efficient system operation.
3. Product Protection: A smooth SUS304 conveyor reduces marking, and anti-slip tray stoppers keep products secure as they travel through the spiral section.
4. Accessible Maintenance: The airflow system preserves operator access around key components, making inspection, cleaning, and routine servicing easier to complete.
Efficient air circulation is especially valuable when product types change during a shift. Operators can adjust residence time and airflow mode to suit different loads, helping limit temperature variation while maintaining steady production and product appearance throughout the freezing process.
By combining balanced air distribution, adaptable freezing time, hygienic construction, and broad food compatibility, the Spiral Tunnel Freezer supports reliable quality and efficient daily processing.
Q&A
Q: What is the difference between IQF and non IQF?
A: Compared to traditional methods, the IQF freezer stands out as the superior choice for high-quality food preservation. While block freezing often damages cellular structures through large ice crystals and freezer burn, our IQF freezing technology locks in texture and nutrients through rapid temperature reduction.
Q: How long does spiral freezing take?
A: Freezing time generally ranges from several minutes to over an hour, depending on product thickness, inlet temperature, loading, and belt speed.
Q: What products are suitable for spiral freezing?
A: It is suitable for meat, poultry, seafood, bakery products, prepared meals, dairy products, vegetables, and packaged foods.
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