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UltraFreeze spiral and tunnel freezers, chillers, and ovens

ultrafreeze series

High-performance mechanical IQF spiral freezing

The UltraFreeze spiral is a high-capacity mechanical IQF solution designed for continuous, high-volume food production. Built with advanced Horizontal-flow® technology, it delivers rapid, uniform airflow across every tier - ensuring consistent freezing, reduced dehydration, and maximum product yield.

Available in single, double, and triple drum configurations, the system handles a wide range of applications - from IQF products to tray and boxed goods. Each solution is fully customized to match your product characteristics, throughput requirements, and plant layout.

With airflow velocities of up to 30 ft/s and optimized evaporator design, UltraFreeze spiral achieves faster freezing times and improved heat transfer compared to conventional vertical airflow systems. The result is superior product quality, higher belt utilization, and lower cost per kg/lbs processed.

Engineered for efficiency, uptime, and hygiene

UltraFreeze spiral is designed to maximize operational efficiency while minimizing total cost of ownership:

  • Horizontal-flow® airflow system ensures uniform temperature and velocity across all tiers for faster, more consistent IQF freezing
  • Extended runtime up to 144 hours between defrost cycles, reducing downtime and increasing production capacity
  • Oversized evaporators with large fin spacing minimize frost build-up and eliminate the need for sequential defrost
  • Optimized airflow control and enclosure design reduce energy consumption and improve freezing efficiency
  • Flexible configurations with multiple drive options, belt types, and layouts tailored to your production
  • Hygienic design with fully welded stainless-steel construction, CIP options, and easy access for cleaning and maintenance

The combination of high airflow, smart frost management, and robust construction ensures reliable operation, long service life, and industry-leading performance.

Robust, reliable and proven ROI

Mechanical IQF solutions for high-volume food production and quality

UltraFreeze is our mechanical IQF product line, designed for efficient freezing, cooling, and heating of quality food at scale. Built on advanced airflow technology and a proven refrigeration cycle, the system delivers fast and uniform thermal treatment across a wide range of products.

We customize every solution to your production – from spiral and tunnel freezers to cooking, chilling, and pasteurizing systems – ensuring seamless integration and reliable performance. With UltraFreeze, you get the capacity, control, and flexibility needed to handle high-volume production while maintaining consistent product quality.

Maximize your output. Optimize your operation

UltraFreeze is engineered to maximize your return on investment. Faster freezing times reduce dehydration and yield loss, while optimized airflow and heat exchange lower energy consumption and operating costs.

The result is a solution that delivers:

  • Higher yield and better product quality
  • Lower cost per kg/lbs of processed product
  • Reduced energy consumption and improved sustainability
  • Long running times with minimal downtime

For high-volume production, mechanical IQF quickly outperforms alternative technologies – giving you a reliable, cost-efficient solution built for continuous operation and long-term profitability.

Optimized performance. Lower cost per kg/lbs. Consistent product quality.

Spiral freezer from DSI Dantech

IQF for quality food

Individual Quick Freezing (IQF) is the preferred method for preserving food quality, safety, and yield. Rapid freezing minimizes large ice crystals - protecting texture, taste, and cell structure while reducing dehydration and weight loss.

Mechanical IQF is ideal for high-capacity, continuous production, delivering consistent performance and a low cost per kg/lbs.

Cryogenic IQF provides ultra-fast freezing with liquid nitrogen or CO₂ - perfect for high-quality products, flexible production, and variable capacities.

Plate freezing complements IQF with efficient block and tray freezing, offering high capacity, low energy consumption, and a compact footprint.

At DSI Dantech, we combine mechanical, cryogenic, and plate technologies to match your product, capacity, and process.

Read more about our IQF solutions here

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Service and support from DSI Dantech

Service & support

To keep your down time to a minimum, we offer worldwide 24/7 support. Our global setup across Europe, Asia, and the US allows us to respond very fast to any request, onshore as well as offshore.

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