- Typical capacity
- For this class of equipment, blast freezers are designed for rapid temperature reduction, often handling batches from several hundred kilograms up to several tonnes, depending on product and cycle time.
- Power supply
- Industrial blast freezers commonly require a 3-phase electrical supply, typically 400V/50Hz in the UK, with significant amperage requirements for compressors and fans.
- Refrigerant type
- Units of this type commonly use HFC refrigerants (such as Freon, a brand name for various refrigerants) or increasingly natural refrigerants, depending on the system's age and design.
- Temperature range
- Blast freezers are typically capable of reaching temperatures as low as -35°C to -40°C, ensuring rapid freezing.
- Footprint
- A 'pack' system with separate evaporators, compressor, and condenser offers flexibility in installation, but the combined components can require a substantial plant room or outdoor space for the condenser.
- Evaporator configuration
- Large floor-mounted evaporators with multiple fans are common for high-airflow requirements in blast freezing rooms, ensuring even temperature distribution and rapid heat extraction.