IQF (Individual Quick Freezing) Conveyor Belt Individual Quick Freezing, designed and manufactured directly by Tan Long Refrigeration and Electrical Engineering at its 10,000m² factory in Duc Hoa 1 Industrial Park, is the leading ultra-fast individual freezing technology solution in Vietnam. With a freezing time of just... 10 to 25 minutes and mass loss rate under 1%, The Tan Long IQF system helps shrimp processing plants, pangasius fillet factories, agricultural product and ready-to-eat food processing plants maintain cellular structure, freshness and enhance the commercial value of their products for export to the world's most demanding markets (USA, EU, Japan).
1. Principles of Tan Long IQF ultra-fast freezing technology
Completely different from the slow freezing method in traditional cold storage (which takes 6 to 12 hours and creates large ice crystals that tear cell membranes), Tan Long's IQF technology operates on the principle of high-speed forced convection:
- Deep-freeze air stream (-35°C to -45°CThe product surface is directly blown downwards by high-pressure axial fans at a velocity of 5 m/s to 10 m/s.
- The product rapidly passes through the maximum ice crystallization zone (from -1°C to -5°C) in an extremely short time, creating countless tiny ice microcrystals nestled within the cells.
- During thawing, the cell membranes remain undamaged, and there is no loss of juice and nutrients (drip loss < 1%), while the muscle tissue retains its natural firmness and crispness.
IQF conveyor belts with 304 stainless steel mesh, meeting microbiological standards, are manufactured at Tan Long Refrigeration and Electrical Engineering Workshop.
2. Comparison of 3 specialized IQF conveyor belt lines manufactured by Tan Long
To optimize for each customer's specific material characteristics, Tan Long supplies three main conveyor belt lines:
| Equipment Line | IQF Mesh Conveyor Belt | IQF Solid Belt Conveyor | Spiral IQF Conveyor Belt |
|---|---|---|---|
| Suitable product | PTO shrimp, Nobashi (spicy shrimp), squid, cuttlefish, meatballs, vegetables and seeds. | Pangasius/basa fillet, battered shrimp, products with high wetness and stickiness. | Chicken, dim sum, dumplings, mini pizzas, sausages, ice cream |
| Conveyor material | 304 Stainless Steel Mesh - Meets Practical Microbiological Standards | High-strength, single-piece stainless steel strip (Sandvik) | Stainless steel or food-grade POM plastic. |
| Key advantages | The air passing through the multi-directional cooling mesh cools down extremely quickly. | Leaves no mesh marks on the fish's surface, completely non-stick. | 70% optimizes floor space thanks to its multi-tiered spiral structure. |
| Capacity range | 300 kg/h – 1,000 kg/h | 500 kg/h – 1,200 kg/h | 500 kg/h – 2,500 kg/h |
Sandvik flat conveyor belts are made of smooth, non-stick, single-piece sheets that protect the surface of fish fillets.
3. Standard technical specifications table for Tan Long IQF conveyor belts
| Specifications | Model TL-IQF-500 | Model TL-IQF-750 | Model TL-IQF-1000 |
|---|---|---|---|
| Freezing capacity | 500 kg/hour (calculated based on shrimp with shells) | 750 kg/hour | 1,000 kg/hour |
| Freezer temperature | -38°C to -42°C (continuously stable) | ||
| Output product core temperature | Meets standard ≤ -18°C | ||
| Freezing Retention Time adjustment | 5 minutes to 40 minutes (continuously adjustable via inverter) | ||
| Refrigerant usage | NH3 (forced circulation pump) or Freon R404A / R507A | ||
| Snow removal system | Using water or hot gas (Hot Gas Defrost) automatically, running continuously for 20-23 hours per shift. | ||
4. Outstanding advantages of investing in Tan Long's IQF system.
- Self-manufacturing of the 100% at our 10,000m² Duc Hoa 1 factory: Using a Fiber laser cutting system, CNC bending, and automatic TIG argon welding ensures a bright, clean weld free from microbial residue. Customers save money. 25% to 40% costs compared to equipment imported from Europe or Japan.
- Genuine electromechanical components: Siemens/Schneider inverters and PLCs, SEW (Germany) or Sumitomo (Japan) geared motors, Danfoss (Denmark) fluid control valves.
- Complete integration of a range of auxiliary equipment: Pre-cooling conveyors, automatic glazing machines, and hardening belts create a closed-loop, integrated processing chain.
- 24/7 Rapid Response Team: Engineers are available within 2-4 hours in the major fishing hubs of the Mekong Delta (Ca Mau, Bac Lieu, Soc Trang, Kien Giang) when technical problems occur.
IQF Conveyor Belt Design Consulting Based on Actual Factory Layout
Tan Long Refrigeration and Electrical Engineering team directly surveys factory layouts, calculates cooling capacity, and develops the most optimal investment plan for businesses.
Technical Specifications Table for Tan Long IQF Ultra-Fast Freezing Conveyor Belts (TMF & TSF Series)
All IQF conveyor belt equipment is provided by Tan Long Designed and manufactured directly at our 10,000m² factory, meeting stringent food safety and hygiene standards (FDA, HACCP, EU Code). The equipment operates stably across the evaporation temperature range. -38°C to -42°C, ensuring the core temperature of the product reaches -18°C Super fast:
IQF Mesh Conveyor Belt (TMF Series)
Specialized for quick freezing of whole shrimp, nobashi shrimp, fish fillets, and vegetables. Standard capacity range: 500, 750, 1,000 kg/h.
IQF Flat Plate Conveyor Belt (TSF Series)
Seamless stainless steel conveyor belt with non-stick surface, preserving the shape of catfish, salmon, squid, and scallop fillets. Capacity range: 500, 750, 1,000 kg/h.
Standard Manufacturing Dimensions Table
| Machine line | Model | Capacity (kg/h) | Evaporating Google | Dimensions L × W × H (mm) |
|---|---|---|---|---|
| IQF Mesh (TMF) | TMF.500 | 500 | -38°C to -42°C | 7.200 × 3.600 × 2.900 |
| TMF.750 | 750 | -38°C to -42°C | 10.200 × 3.600 × 2.900 | |
| TMF.1000 | 1.000 | -38°C to -42°C | 13.200 × 3.600 × 2.900 | |
| IQF Flat Sheet (TSF) | TSF.500 | 500 | -38°C to -42°C | 10.700 × 3.300 × 2.900 |
| TSF.750 | 750 | -38°C to -42°C | 15.450 × 3.300 × 2.900 | |
| TSF.1000 | 1.000 | -38°C to -42°C | 20.200 × 3.300 × 2.900 |
Synchronized Equipment Included with Seafood Freezing Line:
- REF mesh conveyor belt: Pre-cooling the ingredients before they enter the IQF chamber helps reduce thermal shock and save energy.
- Automatic spray glazing machine: Controlling the glazing ratio from 5% to 20% creates a beautiful, glossy protective film that resists oxidation during long-term storage.
- Hardening Tunnel (Refreezing System): Secure the ice glaze layer immediately before packaging.
