1. Overview
The LONKIA continuous tunnel freezer is a high-efficiency freezing system specially designed for large-scale industrial food production. With advanced freezing technology and stable performance, it helps manufacturers achieve fast, uniform, and energy-efficient freezing for various food products such as seafood, meat, fruits, vegetables, bakery items, and prepared meals.
As a leading supplier of food processing equipment, LONKIA provides tailor-made freezing solutions that improve product quality and streamline production.

2. Working Principle
The LONKIA tunnel freezer uses a stainless-steel conveyor belt to transport food continuously through a low-temperature tunnel. Inside the tunnel, high-speed cold airflow evenly surrounds each product, rapidly reducing its core temperature.
This quick-freezing process minimizes ice crystal formation, perfectly preserving the original taste, texture, and nutritional value of food.
LONKIA engineers each freezer with precise temperature control, ensuring consistent freezing results for every production batch.
3. Advantages of LONKIA Continuous Tunnel Freezer
- High Capacity for Large-Scale Production – Continuous design supports 24/7 operation, ideal for industrial freezing lines.
- Uniform and Stable Quality – Optimized airflow ensures even freezing across all products.
- Energy Efficiency – LONKIA systems feature advanced insulation and low-energy compressors, reducing operational costs.
- Hygienic and Durable Design – Made of food-grade stainless steel for easy cleaning and long service life.
- Custom Solutions – LONKIA customizes belt width, tunnel length, and freezing capacity to meet your specific production needs.
4. Technical Specifications
| Item | Description |
|---|---|
| Temperature range | -35°C to -45°C |
| Freezing capacity | 500–5000 kg/h (customizable) |
| Belt type | Stainless steel mesh or solid belt |
| Defrost system | Water or air defrost |
| Refrigerant | Ammonia (NH₃) or Freon (R404A/R507) |
| Material | Full stainless steel, food-grade construction |
Each unit is built under LONKIA’s strict quality control, ensuring long-term reliability and performance stability.
5. Applications
LONKIA continuous tunnel freezers are widely applied in:
- Frozen seafood and fish fillets
- Meat and poultry products
- Fruits and vegetables
- Dumplings, bakery, and ready meals
- Dairy products, desserts, and plant-based foods
Whether for IQF (Individual Quick Freezing) or bulk freezing, LONKIA provides versatile solutions for various food industries.
6. Why Choose LONKIA
- Professional Manufacturing – Over 15 years of expertise in food processing equipment.
- Global Service Network – LONKIA provides installation, training, and after-sales support worldwide.
- Customized Engineering – Every freezer is designed according to your factory layout and production needs.
- Stable Performance – Continuous, automated operation ensures maximum output and reliability.
- Energy Saving & Eco-Friendly – LONKIA focuses on sustainable refrigeration technologies to reduce carbon footprint.
By choosing LONKIA, you invest in a smart, efficient, and profitable freezing solution for your production line.
7. Conclusion
The LONKIA continuous tunnel freezer is a key equipment for modern large-scale frozen food processing plants. With its efficient, continuous operation and precision temperature control, it guarantees fast freezing, consistent quality, and energy savings.
LONKIA helps food manufacturers worldwide enhance productivity, maintain freshness, and deliver top-quality frozen products to market.
LONKIA – Your trusted partner for industrial freezing and food processing solutions.
