Fluidized Bed Freezer

Deliver Consistent Product Quality with Fluidized Airflow & Dual-Belt Design

Engineered for true IQF performance, our Fluidized Bed Freezer uses dual-speed stainless-steel belts, mechanical vibration, and high-pressure centrifugal airflow to achieve individual particle suspension and consistent freezing—eliminating clumping and preserving moisture, shape, and texture.

Key Metrics

Freezing Temperature: Down to approximately –30 °C for air (~–40 °C refrigerant).
Freezing Time: Adjustable between 5–20 minutes, depending on product size and moisture.
Capacity Range: Scalable from 500 kg/h up to 10,000 kg/h (1–10 t/h) with modular configuration.
Hygiene Design: All food-contact surfaces made of SUS304 stainless steel; mesh belt and frame optimized for easy cleaning.

Why Choose Our Fluidized Bed Freezer?

Fast & Uniform IQF Freezing: High-pressure centrifugal fans create a fluidized bed, suspending food items to freeze individually, avoiding clumps.
Dual-Speed Dual-Belt System: Two independently controlled belts (first belt vibrates reciprocally) to adjust freezing for multiple product types without sticking.
Continuous High-Volume Operation: ADF air-defrost system plus variable fin spacing reduces frost buildup and allows long runtime with minimal downtime.
Energy-Efficient Heat Transfer: Aluminum alloy evaporators with large-fin, variable-pitch design optimize heat exchange and energy usage.
Durable & Hygienic Construction: Galvanized or stainless frame, isolated fan chambers (so one fan failure doesn't affect operation), and easy-access panels for cleaning.

Product Configuration

Full Fluidized Bed Freezer (two-stage belt with mechanical vibration and airflow pulsation)—ideal for berries, diced veggies, shrimp, mung beans
Semi-Fluidized Bed Freezer (horizontal vibration + airflow) for thicker products like French fries, broccoli, meatballs, cherries

(Custom solutions available based on product type and capacity.)

Three Core Systems

Insulation System

PU sandwich panels (inner/outer 304 stainless steel) filled with imported high-pressure foam offer excellent thermal performance and aesthetic finish.
Double-seal doors with anti-freeze heaters prevent ice accumulation.

Drive System

Two stainless-mesh belts (SUS304, 1.5 mm thickness, 10×20 mm pitch).
Dual VFD belt control for precise speed adjustment.
First belt includes horizontal reciprocating vibration to ensure effective fluidization.

High-efficiency aluminum evaporators with large fin pitch reduce frost buildup.
High-pressure, quiet centrifugal fans generate vertical upward airflow for product suspension.
ADF (air-defrost) system supports extended freezing runs.

Heat Exchange System

Advantages of Fluidized Bed Freezer vs. IQF Tunnel Freezer

Faster Freezing:
Freezes products in 3–15 minutes versus 20–60 minutes for IQF tunnels.
Better Product Separation:
High-velocity airflow suspends individual pieces, preventing clumping, ideal for small or sticky foods.
Energy Efficiency:
Uses optimized airflow and heat exchange to reduce energy consumption by 10–25% compared to IQF tunnels.

Fluidized Bed Freezer Applications

Where precise individual freezing is required for small, delicate or sticky products:
- Vegetables & Fruits: Berries, peas, corn kernels, diced fruits
- Seafood: Shrimp, scallops, small fillets
- Meat & Poultry: Nuggets, diced strips
- Bakery & Toppings: Diced toppings, snack bits, fries
- Sticky & granular foods: Products that must not clump, e.g. granulated meal items

Frequently asked questions

Q1. What products are best for a fluidized bed freezer?
A. Free-flowing, small-sized products (e.g., diced fruits, berries, peas, shrimp) benefit most from fluidized IQF freezing.

Q3.Can it handle sticky or high-sugar products?
A. Yes, with dual-belt configuration (crust-freeze + finish freeze), even sticky products like mango chunks can be IQF processed.

Q4. How do you ensure hygiene?
A. All food-contact parts are stainless steel, with an open frame for washdown and optional CIP systems.

Q2. How fast is the freezing cycle?
A. Typical freezing time is 3–15 minutes, depending on product size, moisture, and target core temperature.

Q5. Can it fit into my existing production line?
A. Yes, modular and space-saving layouts are available. We design systems according to your footprint (L × W × H) and utility constraints.

Q6. Do you provide complete design services for IQF production lines?
A. Yes. We offer turnkey IQF solutions covering raw material handling, processing, quick-freezing, and packaging. Our team also helps integrate all pre- and post-processing equipment, ensuring seamless setup, cost savings, and efficient operations.

Contact & Support

Get Your Proposal in 24 Hours

Tell us just what we need to engineer it right the first time:

Product(s) & packaging type
Required throughput (kg/h)
Inlet & target core temperatures
Desired freezing time window (if known)
Available footprint (L × W × H) & utilities

Our specialists are ready to help you!