Product Description
Advantages and Applications of Fluidized-Bed IQF Freezers
Fluidized-bed freezers stand as a pinnacle of innovation in the food freezing industry, renowned for their exceptional performance in handling fruits, vegetables, and select varieties of fish. Their unparalleled ability to execute high-quality individual quick freezing (IQF) is their crowning achievement, effectively circumventing the common pitfalls of traditional freezing methods, such as food clumping and compromised quality. This technology ensures that each food item retains its distinct form, structural integrity, and freshness, offering a significant edge in the market.
Core Advantages: The Hallmarks of IQF Excellence
1. Unrivaled Individual Quick Freezing (IQF) Performance
The most compelling feature of fluidized-bed freezers is their superior IQF capabilities. During operation, a powerful stream of cold air, typically chilled to temperatures ranging from -35°C to -45°C, is propelled upwards through a perforated conveyor belt. This creates a fluidized state, suspending each food item-whether it's a pea, a strawberry half, or a small fish fillet-independently, ensuring complete exposure to the freezing air. This innovative approach eliminates the risk of food items sticking together, a common drawback of traditional batch freezers that often produce large, congealed blocks. The result is a collection of loose, individual food pieces, enhancing both convenience, as it allows for easy portion control, and the overall consumer experience.
2. Gentle Handling of Delicate Ingredients
Fruits, vegetables, and small fish varieties possess delicate cell structures and tender textures that require careful handling during the freezing process. The fluidization mechanism employed by these freezers is designed to be gentle, minimizing mechanical friction and pressure that could potentially damage the produce. This is particularly crucial for items like blueberries, broccoli florets, sardines, and minnow fillets, which are prone to bruising, crushing, or deformation. Additionally, the rapid freezing process significantly reduces the formation of large ice crystals within food cells. Smaller ice crystals translate to less damage to the cell walls, preserving the natural characteristics of the food. After thawing, vegetables retain their crispness, fruits their juiciness, and fish their tender texture, along with over 90% of their essential vitamins, such as vitamin C in spinach and vitamin A in carrots.
3. Consistent Freezing Quality
The upward-flowing cold air in fluidized-bed freezers ensures uniform circulation across the entire conveyor belt, guaranteeing that each food item in the fluidized layer is subjected to the same low-temperature environment. This eliminates the problem of uneven freezing, a common issue in traditional freezers where food may freeze on the surface while remaining unfrozen at the core. For instance, when freezing diced carrots or sliced apples, every piece will reach the standard long-term storage temperature of -18°C by the end of the process. This consistency not only ensures a high and uniform quality of the frozen products but also extends their shelf life significantly, with most fruits and vegetables remaining fresh for 12-18 months and small fish for 8-12 months.
4. Energy-Efficient Solution for Small-to-Medium Batches
In comparison to large tunnel freezers, which are optimized for high-volume, continuous production, fluidized-bed freezers offer a more energy-efficient solution for processing small-to-medium batches of fruits, vegetables, and small fish. Their targeted airflow design directs cold air precisely to the food layer, minimizing energy wastage associated with cooling large, empty spaces. This design feature reduces overall energy consumption by 15-25%. Additionally, their compact footprint makes them an ideal choice for medium-sized food processing plants or specialized facilities that focus on producing IQF fruits, vegetables, and fish.
Main Applications: Preserving Freshness with Precision
Fluidized-bed freezers are meticulously engineered to cater to the specific characteristics of their target ingredients, ensuring optimal preservation of freshness and maintenance of individual integrity:
1. Fruits
- Berries: Strawberries, whether halved or whole, along with blueberries, raspberries, and blackberries, benefit significantly from IQF. This method prevents bruising and clumping, preserving their vibrant color and succulent texture. These frozen berries are highly sought after in the food industry for use in smoothies, bakery products like fruit tarts, and ready-to-eat snacks.
- Stone Fruits and Others: Diced peaches, sliced apples, and cherry halves are quickly frozen to lock in their natural sweetness and prevent browning, a common issue encountered with slower freezing methods.
2. Vegetables
- Small and Granular Vegetables: Peas, green beans, corn kernels, and diced carrots are efficiently frozen using IQF technology. This ensures that they remain loose, allowing consumers to use only the required amount without having to thaw the entire package.
- Florets and Slices: Broccoli florets, cauliflower florets, and sliced bell peppers are gently fluidized to preserve their crispness, making them perfect for stir-fries or steamed dishes after thawing.
3. Select Fish Varieties
- Small Fish and Fillets: Sardines, anchovies, and small cod fillets cut into bite-sized pieces are processed using IQF to prevent sticking and preserve their delicate flavor and firm texture. These frozen fish are commonly used in canned products, fish cakes, and pasta sauces.
- Seafood Bits: Small, peeled, and deveined shrimp, as well as squid rings, are frozen individually to ensure easy and precise cooking, avoiding the risk of overcooking due to clumping.
Product Parameters
| Item |
FSLD1000( frozen pitahaya) |
| Product |
Frozen pitahaya |
| Capacity |
1000kg/h |
| In/Out Temp. |
+14ºC to -18ºC |
| Freezer Temp. |
-35ºC |
| In/Out Time |
6-30min |
| Refrigerant |
R404A/R507 |
| Consumption |
210kw |
| Freezing Container Thickness |
150mm |
| Product Height |
≤100mm |
| Belt Width |
1200mm |
| Product Input Conveyor/Output Conveyor |
1000 mm/300mm |
| Water Input Pressure |
≥3 kg/cm2 |
| Freezer Power |
36.7KW |
| Freezer Size(L*W*H) |
11800×4200×3000mm |
| Freezer Body Material |
Duplex stainless steel polyurethane insulation board density or 40 kg/m3, the thickness of 150 mm, 304 stainless steel outer plate thickness more than 0.5 mm |
| Main Electric Brand |
Schneider(France) Siemens DLX etc |
| Belt and Speed |
Food-grade stainless steel belt; Frequency conversion stepless speed regulation |
| Slide Track Material |
Ultrahigh molecular polyethylene material. |
| Internal Structure |
All made of 304 Stainless Steel Material, Argon arc welding |
| Evaporator |
Effective from large aluminum finned tube set, stainless steel panel stent |
| Fan and Motor |
Aluminum alloy stainless steel duct fan low noise and waterproof electric power consumption |
Company Profile
Audited Supplier 
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