Fluidised Bed IQF Freezer

Why Choose Lynxcool's Fluidised Bed IQF Freezer?

Our Fluidised Bed IQF Freezer provides a best-in-class freezing solution for small and delicate foods. We have over 15 years of experience in this field.

1. Ultra-High-Speed Freezing

This machine freezes in 2-10 minutes, faster than traditional methods, ensuring your products are perfectly frozen and maintain optimal freshness. Our system precisely controls airflow speed to ensure each piece of product freezes evenly, without clumping or sticking.

2. Perfect IQF Separation

The fluidized bed mechanism suspends each piece of product in mid-air using high-speed airflow, ensuring 360° all-around contact and guaranteeing each piece is independent and doesn't clump. This is crucial for products like shrimp, berries, or cut vegetables that need to maintain their appearance and quality.

3. Suitable for Multiple Product Configurations

Whether you're processing shrimp, vegetables, or grains, we have the right configuration. Choose the perforated conveyor for medium-sized products, or the vibrating trough for small, lightweight foods. Both configurations ensure the highest IQF quality.

4. Hygienic Design, Easy to Clean

Our freezers are constructed from AISI 304/316L stainless steel, meeting the highest food safety standards. Our hygienic design includes removable conveyor belts and troughs, a CIP (Cleaning in Place) spray system, and smooth surfaces compliant with EHEDG design standards for easy cleaning.

5. Compact Design, High Throughput

Our Fluidised Bed IQF Freezer achieves high throughput within a limited footprint. For example, a 1000 kg/h shrimp freezer requires less than 10 m² of floor space, saving more space than spiral or tunnel freezers, making it ideal for seafood or vegetable processing plants with limited space.

Technical Parameters

What are the features of this product?

1. Fluidized Airflow: Ensures product separation; optimized airflow speed and precise control result in uniform and stable freezing.

2. Pre-fluidized Surface Freezing Zone: Rapidly freezes moist or viscous products (such as shrimp, strawberries, and blanched vegetables), ensuring the surface is frozen before entering the fluidization zone to prevent sticking.

3. Perforated Belt and Vibration Tunnel Configuration: Selects suitable transport configurations based on different product characteristics to ensure optimal IQF performance.

4. Adjustable Air Speed Precise Control: Combines a high-pressure centrifugal fan with an EC variable frequency drive system for precise air speed control, ensuring optimal fluidization for each batch of products.

5. High-Frequency Thawing Management: Adapts to the needs of high-humidity products; the rapid thawing system quickly restores freezing operations, ensuring efficient equipment operation.

6. Hygienic Design: The Fluidized Bed IQF Freezer fully complies with food safety standards; all components are easily disassembled for cleaning; the internal structure has no dead corners, meeting CIP cleaning requirements.

Applications

1. Seafood (Shrimp, Small Fish, Squid, etc.): Quickly freezes small to medium-sized shrimp and seafood, achieving perfect separation and appearance, avoiding clumping issues common in other quick-freezing systems.

2. Vegetables (Peas, Corn, Edamame, etc.): Efficiently processes small vegetables, ensuring precise freezing without compromising quality. For peas and small corn kernels, a vibrating trough configuration is recommended to prevent products from falling or passing through conveyor belt gaps.

3. Berries (Strawberries, Blueberries, Raspberries, etc.): For moist, delicate foods such as berries, our pre-fluidized zone rapidly freezes the surface, preventing sticking during freezing. Our fluidized bed freezing technology better protects these delicate foods.

4. Cooked Grains (Rice, Pasta, etc.): Freezes easily sticky, moist foods such as cooked rice and pasta, preventing surface sticking and maintaining separation during freezing.

FAQ

Q: What is fluidisation, and how does it achieve better IQF than a belt or spiral freezer?

A: Fluidization suspends each product in the airflow by increasing the upward airflow velocity above the product's settling velocity. The cold air simultaneously contacts all surfaces of the product (top, bottom, and sides), maximizing heat transfer compared to belt or spiral freezers which only contact the top and sides. This increases freezing speed and prevents clumping.

Q: What products can be frozen in a fluidised bed IQF freezer?

A: Suitable for small, individual, and uniformly shaped foods, such as shrimp, small seafood, peas, corn kernels, berries, cut vegetables, cooked rice, and pasta. Not suitable for large, fragile, or unevenly shaped products.

Q: How is the fluidisation air velocity set for different products?

A: The minimum fluidization rate and terminal velocity for each product define the operating range. Lynxcool presets the airflow speed based on product characteristics and adjusts it in real time via PLC to adapt to different product batches.

Q: Why does the fluidised bed freezer defrost more frequently than a spiral or tunnel freezer?

A: Fluidized bed freezers process small, moist products with large surface areas, resulting in significant water evaporation and rapid frost formation on the evaporator. Thawing is required every 4-8 hours. Lynxcool employs a dual-zone evaporator to minimize the impact of thawing on production.