📌 Introduction
The IQF Processing Line (Individual Quick Freezing Line) is a high-efficiency industrial freezing system that rapidly freezes individual food items at extremely low temperatures, preserving their original texture, taste, nutritional value, and appearance. This system is widely applied in fruits, vegetables, seafood, poultry, meat, pastries, and ready-to-eat food products.
Unlike conventional freezing methods, the IQF technique prevents the formation of large ice crystals, ensuring that each piece of food remains separate and intact, making it ideal for retail packaging, export trade, and downstream processing.
🧊 Key Features & Advantages
True Individual Quick Freezing: Items remain free-flowing after freezing, no clumping or adhesion.
Rapid Heat Exchange: Uses cryogenic airflow and optimized belt motion for fast core freezing (center reaches -18°C within minutes).
Preserves Quality: Minimizes cell damage, maintains color, flavor, nutrients, and texture.
Versatile Compatibility: Suitable for irregular-shaped items like shrimp, berries, meatballs, dumplings, diced fruits, etc.
Energy Efficiency: Equipped with high-performance insulation panels and frequency-controlled fans to reduce energy loss.
Hygienic Design: Food-grade stainless steel structure, easy-to-clean belts, fully washable interior with CIP options.
Modular System: Line can integrate pre-processing (sorting, blanching), freezing, packaging, and inspection modules.
⚙️ Common Process Flow
Standard IQF Line Workflow:
Raw Material Sorting → Washing → Blanching / Cooking → Cooling → Dewatering → IQF Freezing → Metal Detection → Weighing → Packaging → Cold Storage
Optional Units:
Vibrating Feeder & Grader
Spiral Blanching Machine
Drum or Belt Dehydrator
Pre-cooler / Ice Water Chiller
Rotary or Spiral IQF Freezer
MAP Packing Machine (Modified Atmosphere Packaging)
📊 IQF Freezer Specifications (Selected Models)
| Model | Freezing Capacity (kg/h) | Belt Width | Freezing Time (min) | Power (kW) | Room Temperature |
|---|---|---|---|---|---|
| IQF-500 | 500 kg/h | 800 mm | 5–18 min | ~30 kW | -35°C to -40°C |
| IQF-1000 | 1000 kg/h | 1200 mm | 5–25 min | ~45 kW | -35°C to -40°C |
| IQF-2000 | 2000 kg/h | 1500 mm | 6–30 min | ~70 kW | -35°C to -40°C |
| IQF-Custom | 3000+ kg/h | Customized | 6–35 min | Varies | -35°C to -40°C |
Output depends on product type, size, moisture content, and inlet temperature.
🧱 Main Machine Modules
| Module Name | Description |
|---|---|
| Feeding System | Vibrating or belt conveyors to evenly feed raw products into the line |
| Blanching System | Spiral or linear blanchers for vegetables or noodles |
| Cooling System | Icy water chillers or air coolers to lower product temperature before freezing |
| Dehydrator | Removes surface moisture to prevent ice buildup during freezing |
| IQF Tunnel Freezer | Core module – uses cold airflow from axial fans to quick freeze products |
| Metal Detector | Ensures food safety compliance before final packing |
| Packaging System | Weigh-filling machines, baggers, carton sealers |
🧩 Customization Options
| Category | Custom Features |
|---|---|
| Food Category | Fruits, seafood, meat, dumplings, diced vegetables, noodles, pastry, etc. |
| Capacity | From 200 kg/h (pilot scale) to 5000+ kg/h (industrial) |
| IQF Freezer Type | Tunnel, Fluidized Bed, Spiral, Hybrid |
| Automation Level | Manual, semi-automatic, fully automatic |
| Voltage | 220V/380V/415V/440V, 50Hz/60Hz, 3Ph |
| Cleaning System | CIP auto-wash, steam sterilization, UV disinfection |
| Compliance | CE, HACCP, FDA, GMP |
🧭 Layout Diagram (IQF Line Example)
[Sorting & Grading] ↓ [Blancher or Cooker] ↓ [Cooling Chiller] ↓ [Dehydrator] ↓ [IQF Tunnel Freezer] ↓ [Metal Detector + Weighing] ↓ [Packing & Coding System]
🔧 Layouts: Straight line, L-shaped, or modular island style
📐 We offer tailored 2D/3D CAD layouts with airflow and cold room zoning.
🏭 Industry Applications
🥬 Frozen Vegetables (peas, corn, broccoli, mushrooms, spinach)
🍓 Frozen Fruits (blueberries, mango, diced apple, strawberries)
🍤 Seafood (shrimp, squid rings, fish fillets, scallops)
🥟 Ready Meals (dumplings, wontons, spring rolls, noodles)
🥩 Meat & Poultry (chicken cubes, beef strips, meatballs)
🥮 Bakery (par-baked buns, puff pastry, mochi, sweet rice balls)
📦 Delivery & Services
Complete machine line with operation manual
English HMI interface & control logic
Pre-wiring & factory tested
On-site commissioning or remote startup support
Technician training & spare parts package
CE / ISO / Certificate of Origin / Form E
💡 Why Choose Our IQF Line?
✅ Proven Quality – Over 100 installations globally
✅ Flexible Configurations – Built to fit your product and plant
✅ One-Stop Solution – From pre-treatment to packaging
✅ Export-Ready – CE-certified, multilingual support, remote service
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