EN
A Blast Freezer is a professional industrial equipment that uses ultra-low temperature and high-intensity forced convection to rapidly pass products through the ice crystal formation zone in an extremely short time, achieving deep and uniform freezing. It is not designed for long-term storage but serves as the critical step determining final product quality on the processing line.
Screw Compressor Parallel Unit
Speed Equals Quality
Ultimate Freshness Preservation
Maximizes retention of food texture, moisture, flavor, and nutrition. Post-thaw sensory quality closely resembles fresh state.
Safety and Microbial Inhibition
Rapidly bypasses the temperature range for microbial activity, significantly reducing spoilage and safety risks.
High Efficiency & Economic Benefit
Freezing efficiency increases by over 70%, boosting production line throughput and creating market premium through superior quality.
Typical Applications
Food Processing: Critical process for seafood, meat, prepared meals, ice cream.
Agricultural Products: Preservation processing for berries and specialty fruits/vegetables.
Pharmaceutical & Research: Biological samples requiring stringent viability preservation.
Blast Freezer VS. Standard Cold Store
| Blast Freezer | Cold Store | |||||||||
| Purpose | Rapid Freezing (Processing Step) | Long-Term Stable Storage | ||||||||
| Air Velocity | Very High (Forced High-Speed Air) | Low (Natural/Low-Speed Convection) | ||||||||
| Typical Temperature | -30℃ or Lower | -18℃ to -25℃ | ||||||||
| Refrigeration Capacity | Extremely High | Moderate | ||||||||
| Processing Time | Very Short (Minutes/Hours) | Long-Term (Months/Years) | ||||||||
These are the key points:
✔ A dedicated power supply and cables with the correct gauge must be strictly configured as required to meet the rated voltage requirements of high-power equipment such as the compressor and evaporator.
✔ Pre-cool products to near ambient temperature before blast freezing.
✔ To reduce the load on the refrigeration unit, save energy, and prevent pipe blockages, the installation of a U-shaped water seal must never be overlooked.
✔ The heating section of the electric heat trace must cover the entire U-bend.
✔ Ensure stored goods do not obstruct the evaporator air outlet or return air inlet. Maintain specified clearance (typically 20-30cm) between goods and the chamber walls, especially at the rear and ceiling.
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