IQF Fluidized Bed Freezer
The IQF Fluidized Bed Freezer is a high-efficiency individual quick freezing system designed for granular, sliced, or small-sized food products. By using high-velocity airflow to s
Learn MoreIQF Tunnel Freezer
The IQF Tunnel Freezer is a continuous rapid freezing system designed for Individual Quick Freezing (IQF), allowing products to remain free-flowing and non-sticking after freezing. It is widely used in vegetables, fruits, meats, seafood, prepared foods, and pet food industries, and is ideal for medium to large food processing plants seeking stable and efficient freezing production.
Overview
The IQF Tunnel Freezer features a straight-line conveyor structure where products are evenly distributed on the belt and rapidly pass through the maximum ice crystal formation zone under forced low-temperature airflow. With a simple structure, stable operation, and easy maintenance, it is suitable for continuous freezing of various food forms.
Working principle
Products enter the freezing tunnel via the infeed conveyor. Under forced circulation of low-temperature air, efficient heat exchange occurs between the cold airflow and the product surface. Driven by high-efficiency fans, uniform airflow is formed inside the tunnel, enabling rapid freezing and achieving individual quick freezing within the set time.
IQF Tunnel Freezing Process
Products are evenly fed after washing and grading
Products enter the tunnel freezer conveyor system
Rapid freezing occurs under forced low-temperature airflow
Products are frozen while maintaining free-flowing separation
Products are discharged automatically and transferred to packaging or further processing
Parameter
Freezing capacity | 300–3000 kg/h (customizable) |
Freezing temperature | -30℃ to -40℃ |
Freezing time | 5–30 minutes (adjustable) |
Conveyor belt type | Food-grade stainless steel mesh belt / PU belt
|
Cooling method | Forced air cooling |
Refrigeration system | Ammonia or Freon (optional) |
Control system | PLC + Touch Screen |
Power supply | 380V / 50Hz |
Note: Technical specifications may change without notice due to ongoing technological advancements.
Advantage
- Individual Quick Freezing, Non-Sticking ProductsAchieves individual quick freezing, keeping products free-flowing with better appearance and quality.
- Continuous Production with High ThroughputSupports continuous feeding and discharge to meet high-capacity production requirements.
- Fast Freezing with Stable QualityRapidly passes through the ice crystal formation zone, reducing cellular damage.
- Simple Structure and Easy MaintenanceStraight tunnel design allows easy cleaning, maintenance, and inspection.
Who Needs an IQF Tunnel Freezer
- Fruit and Vegetable ProcessorsFor IQF freezing of peas, corn, strawberries, blueberries, and other fruits and vegetables.
- Seafood Processing PlantsSuitable for IQF freezing of shrimp, fish fillets, and shellfish.
- Meat and Prepared Food ManufacturersFor rapid freezing of diced meat, meat portions, and prepared foods.
- Pet Food ManufacturersFor pet food production and pre-freezing before freeze drying.
- Frozen Food ExportersMeets high-quality and standardized freezing requirements for export markets.
FAQ
- What food forms are suitable for IQF tunnel freezers?Suitable for granular, sliced, and small-piece food products.
- What is the difference compared to spiral freezers?Tunnel freezers have a simpler structure and easier maintenance but require more linear space.
- Can different products be processed on the same machine?Yes, parameters should be adjusted and cleaning performed when switching products.
- Does freezing affect food texture?Rapid freezing preserves original texture and quality to the greatest extent.
- Is customization available?Yes, capacity, tunnel length, and refrigeration systems can be customized.
