Dual spiral quick freezers offer efficient, space-saving solutions for fast freezing of various foods, enhancing production and quality.
Dual Spiral Quick Freezing Tunnel Refrigeration Methods
The refrigeration methods of a dual spiral quick freezing tunnel mainly include:
- Direct Refrigeration: Uses refrigerants such as ammonia or freon to directly contact the food, quickly freezing it by evaporative heat absorption.
- External Drive Refrigeration: The refrigeration system is installed outside the tunnel, and cold air is transferred into the tunnel through a specific mechanism.
- Internal Drive Refrigeration: The refrigeration mechanism is located inside the tunnel, directly cooling the air around the conveyor belt.
- Vertical Airflow Refrigeration: Cold air flows from top to bottom, providing uniform cooling of the food.
- Horizontal Airflow Refrigeration: Cold air is blown horizontally, suitable for freezing food of various shapes and sizes.
Each of these methods has its own characteristics, all designed to efficiently and evenly freeze food.
Features of the Dual Spiral Quick Freezer
- Equipped with a dual drum structure, maximizing the unique features of the spiral quick freezer and significantly improving freezing efficiency.
- The drums and conveyor belts are supported by polyethylene protective strips, which are wear-resistant and durable, extending the lifespan of the stainless steel mesh belt. Its optimized airflow design ensures thermal insulation and prevents frost buildup on the evaporator, extending defrosting intervals.
- With high resistance to elongation and wear, it enhances the lifespan and stability of the dual spiral quick freezer.
- Equipped with a conveyor belt monitoring device that continuously checks the working condition of the conveyor belt, preventing unnecessary losses due to conveyor belt malfunctions.
Technical Parameters
- Structure: Dual Spiral
- Control Panel: PCL touch screen control, 304 stainless steel
- Drum Diameter: 1620-5800mm
- Refrigerant: Environmentally friendly
- Mesh Belt Width: 520-1220mm
- Defrosting Method: Water flushing/Hot gas defrosting
- Mesh Belt Material: 304/POM
- Freezing/Cooling Time: Frequency adjustable
- Inlet Length: 500mm
- Cleaning Method: Mesh belt cleaning/ClP
- Outlet Length: 500mm
- Note: The above information is subject to the nameplate.
Optional Structural Types
According to the relative positions of the cage and evaporator, the layout of the dual spiral quick freezer can be divided into Type A, B, and C.
Applications
The dual spiral quick freezer is specially designed for efficient food freezing and is suitable for rapidly freezing various foods such as dumplings, seafood, and vegetables. It achieves continuous freezing through its dual spiral structure, improving production efficiency. The equipment occupies little space, optimizes space utilization, and meets high food hygiene standards. The dual spiral design facilitates uniform freezing of materials, making it ideal for food that is sensitive to freezing times. In addition, its modular design makes it easy to integrate into automated production lines, enhancing overall processing capacity and ensuring consistent freezing quality.
Editor's Comment:
The dual spiral quick freezer is indeed highly efficient in freezing, space utilization, and preserving food quality, making it especially suitable for large-scale food processing needs. While it may require a higher initial investment and regular professional maintenance, the long-term production benefits and cost savings it offers are significant for companies focused on high efficiency, freezing quality, and those with large freezing demands.
Small businesses may need to weigh the costs and benefits, but for medium to large enterprises or those involved in high-value food processing, the dual spiral quick freezer is an ideal choice.

Discover the advantages of brine freezers in food processing for rapid freezing, energy efficiency, and superior food preservation.
Discover how saltwater quick freezers enhanced seafood quality, efficiency, and customer satisfaction in this case study.
Related Article
