Feb 22, 2026
In modern food processing, the efficiency, space utilization, and product quality retention of freezing equipment directly determine production scalability and market competitiveness. JET's high-efficiency self-stacking spiral freezer, engineered with a unique vertical self-stacking mesh belt system, addresses the pain points of high-volume, multi-category food freezing. This article explores its core advantages in operational efficiency, quality control, and cost optimization, based on JET’s product features and technical specifications.

JET's self-stacking spiral freezer is a multi-purpose continuous industrial freezing device designed for compact, high-throughput production. Its core working principle combines:
Vertical self-stacking mesh belt system: Products are conveyed via a self-stacking spiral mesh belt, moving through the freezing chamber in a dense vertical spiral path;
Centrifugal high-pressure air supply: Low-temperature air (-35°C to -38°C) is uniformly distributed in the chamber via centrifugal fans, achieving rapid heat exchange with individual product units.
This design enables "individual quick freezing (IQF)" for each product particle, while maximizing space utilization—making it ideal for high-moisture, fragile, or multi-category food processing.

Based on JET's product features and technical parameters, its key advantages in food processing include:
The unique self-stacking spiral structure reduces the equipment’s floor area by 70% compared to linear freezing systems. This allows food manufacturers to expand freezing capacity without facility expansion, which is critical for plants with limited floor space.
The centrifugal high-pressure air supply system ensures cold air penetrates product gaps, freezing individual particles in 3–8 minutes (depending on product type). This minimizes large ice crystal formation, reducing thawing loss to <1.5% and preserving the texture of fragile products (e.g., fried foods, bakery items, high-moisture pastries). For high-temp input products (e.g., freshly baked goods), the system locks in moisture and crispness effectively.
The adaptive air pressure balance system adjusts airflow based on product load, reducing energy consumption by 25% compared to traditional spiral freezers. Additionally, the automatic defrosting system recycles cold air, cutting defrost energy waste by 30%. For a 2000kg/h capacity unit, this translates to ~20,000 kWh of annual electricity savings.
The modular fully-welded stainless steel structure (US 304/316L) and sloped floor design prevent water accumulation and cold bridge formation, simplifying cleaning and meeting food safety standards (e.g., HACCP). The mesh belt tensioning device adjusts automatically, reducing belt replacement frequency by 50% and lowering maintenance costs.
The system supports flexible parameter adjustment (belt speed, air pressure, temperature) to adapt to diverse products:
High-moisture items: Aquatic products, pastries;
Fragile items: Fried snacks, baked goods;
Ready-to-eat foods: Prepared meals, meat products.
This eliminates the need for dedicated freezing equipment for different product lines, improving production flexibility.
Performance Index | JET Self-Stacking Spiral Freezer | Traditional Blast Freezer | Linear Tunnel Freezer |
Energy Consumption (per ton) | 85–105 kWh | 140–160 kWh | 120–140 kWh |
Product Thawing Loss | <1.5% | 3–5% | 2–4% |
Maintenance Frequency | 1–2 times/year | 4–5 times/year | 3–4 times/year |
JET's self-stacking spiral freezer is widely used in:
l Fried foods: Quick-freezing of potato chips, fried chicken nuggets (locks in crispness);
l Bakery items: Freezing of bread rolls, pastries (preserves moisture);
l Prepared meals: IQF of mixed ingredients (e.g., vegetable medleys, meatballs);
l High-moisture products: Aquatic balls, fruit fillings (prevents clumping).
For example, a large fried snack manufacturer reduced freezing time by 20% and increased product crispness retention rate by 15% after adopting JET’s system, significantly enhancing product market competitiveness.
In high-volume, multi-category food processing, JET's solution offers:
Space-scalability: Compact design supports capacity expansion (from 1000kg/h to 4000kg/h) without facility reconfiguration;
Quality stability: IQF technology meets high-end market standards (e.g., export snack foods);
Cost efficiency: Energy savings and low maintenance reduce long-term operational costs.
In conclusion, JET's self-stacking spiral freezer is an innovative solution tailored for modern food processing. Its unique self-stacking design, efficient IQF performance, and multi-category versatility make it a core asset for food manufacturers aiming to enhance efficiency, preserve product quality, and reduce costs.