Differences Between Tunnel Freezers and Spiral Freezers

Both tunnel freezers and spiral freezers are essential equipment in the frozen food processing industry, designed for different types of frozen food production due to their distinct structural characteristics.

Tunnel Freezer

The tunnel freezer is an advanced, high-performance individual quick-freezing (IQF) machine. Its standout features include a large freezing area, wide applicability, and support for multiple freezing methods such as individual freezing, block freezing, and tray freezing. It is energy-efficient, hygienic, and easy to clean and maintain. The fully enclosed air duct structure, with air blowing from multiple directions (top, bottom, front, back, left, and right), ensures optimal freezing quality and efficiency.

Spiral Freezer

The new-generation spiral freezer, designed and manufactured by JET Technology based on nearly 30 years of experience in the freezing industry and equipment manufacturing, incorporates advanced European technology optimized for efficiency. By integrating JET Technology's innovative high-efficiency spiral concept with traditional spiral freezers and tailoring it to the Chinese market, this freezer achieves rapid freezing. Products are placed on a conveyor belt that moves in a spiral motion within the freezer, enabling fast and efficient freezing.

Roles of Both Freezers in Food Freezing

Both tunnel freezers and spiral freezers play critical roles in the food freezing process. Fresh products processed through either a tunnel or spiral freezer can quickly lock in moisture, preserving food freshness. However, the choice between the two depends on your specific needs and product requirements.

Working Principle of Tunnel Freezers

In a tunnel freezer, food products are placed on a conveyor belt at the tunnel entrance. The conveyor belt steadily moves the products through the tunnel, where they are rapidly and uniformly cooled in a dry, cold environment.

This design ensures efficient use of space and energy, making it ideal for large-scale operations. Understanding the operation and efficiency of tunnel freezers is crucial, but it's equally important to explore the contributions of spiral freezers to the freezing process.

Working Principle of Spiral Freezers

Spiral freezers feature a cylindrical design, where food products are rapidly frozen as they descend along a spiral path.

This design ensures that each food item is surrounded and uniformly frozen in a frost-free zone, guaranteeing consistent freezing quality. Spiral freezers are particularly suitable for individual quick-freezing (IQF) products, where minimizing frost formation is critical.

Comparison: Tunnel Freezer vs. Spiral Freezer

Which Freezer Is Right for You?

The choice between a tunnel freezer and a spiral freezer depends primarily on the characteristics of the products being processed. Tunnel freezers are better suited for aquatic products, while spiral freezers excel in meeting the needs of high-capacity, individual product freezing. Understanding the benefits and differences between these two freezers can help you make informed decisions for your food processing needs.

Conclusion

Unveiling the key differences and advantages of tunnel freezers and spiral freezers is critical for making informed decisions in the food processing industry. JET Technology offers high-quality tunnel and spiral freezers tailored to your specific needs. Feel free to contact us anytime.