Feb 04, 2026
In industrial food processing, the performance of freezing equipment directly determines the quality, shelf life, and operational efficiency of frozen products. JET's Impingement Tunnel Freezer (solid belt type) integrates high-velocity air impingement technology with a solid belt conveyor system, emerging as a high-efficiency solution for quick-freezing flat and delicate food products. This article will detail its technical principles, core advantages, and application value in modern cold chain production.
JET's Impingement Tunnel Freezer is a specialized quick-freezing device designed for thin, flat, and tender food products (e.g., fish fillets, shrimp, hamburger patties, and sliced fruits). It combines two core technologies:
High-velocity air impingement: Low-temperature air (-35°C to -38°C) is ejected through precision nozzles at high speed (exceeding 10m/s) to break the thermal boundary layer on the product surface, achieving rapid heat transfer.
Solid belt conveyor: A seamless stainless steel solid belt ensures stable conveying of delicate products (e.g., fresh fish fillets) without damage or belt marks, while maintaining uniform contact with cold air.
This design enables the product to reach a core temperature of -18°C in minutes, far outperforming traditional freezing equipment in efficiency and quality preservation.

Based on JET's technical specifications and industrial design, its key features include:
The high-velocity air impingement minimizes the formation of large ice crystals, preserving the cell structure of food. This reduces thawing loss (dry loss <1.5%) and maintains the original texture and flavor—effects comparable to cryogenic freezing (liquid nitrogen) but with 30-50% lower operating costs.
Optimized airflow circulation and heat recovery systems reduce energy consumption by 20-30% compared to conventional tunnel freezers. The modular structure also reduces the equipment footprint by 25% for the same production capacity.
All-welded stainless steel construction (304/316L) and automatic CIP cleaning systems meet food-grade hygiene standards. The solid belt design avoids residue accumulation, simplifying daily maintenance and reducing downtime.
The system supports adjustments to air velocity, conveyor speed, and temperature zones based on product characteristics (e.g., thickness, initial temperature, and moisture content), adapting to over 20 types of flat food products.
Performance Index | JET Impingement Tunnel Freezer | JET Impingement Tunnel Freezer |
Product Integrity | No Damage/ Belt marks | High risk of breakage/ sticking |
JET Impingement Tunnel Freezer | 80-100 kwh | 120-150 kwh |
Applicable Products | Flat, delicate items | Limited to robust, large products |
JET's Impingement Tunnel Freezer is widely used in:
Aquatic processing: Quick-freezing of fresh fish fillets, shrimp, and squid slices;
Prepared food production: Freezing of hamburger patties, chicken nuggets, and ready-to-eat meal components;
Fruit/vegetable processing: Quick-freezing of sliced mangoes, pineapple chunks, and leafy vegetables.
For example, a large seafood processor reduced freezing time by 15% and increased product yield by 2.2% after adopting JET's equipment, significantly enhancing market competitiveness.
In high-volume food processing, JET's solution balances speed, quality, and cost:
It meets the quality requirements of high-end markets (e.g., export seafood) while controlling operational costs.
The solid belt design fills the gap in quick-freezing delicate flat products, expanding production flexibility.
The modular and scalable structure supports capacity expansion (500kg/h to 2000kg/h) to adapt to business growth.
In conclusion, JET's Impingement Tunnel Freezer (solid belt type) represents a technical upgrade in the quick-freezing field. Its precise air impingement technology and solid belt system provide a reliable, efficient solution for enterprises pursuing high-quality frozen products, making it a core asset in modern cold chain production.