Spiral Freezer Ammonia 100mm gap

• Freezing of bakery products such as bread, pastries, and ready meals.
• Rapid freezing of meat products including poultry, beef, and pork portions.
• Processing of seafood like fish fillets, prawns, and other shellfish.
• Freezing of fruits and vegetables, maintaining texture and nutritional value.
• Used in large-scale food production facilities requiring continuous freezing processes.

Typical capacity

Throughput for this class of equipment commonly ranges from 500 kg/hr to several tonnes/hr, depending on product and dwell time.

Power supply

Units of this type typically require a 3-phase industrial power supply, commonly 400V, 50Hz, with significant current draw for refrigeration compressors and motors.

Refrigerant type

This unit uses ammonia (NH3), a common industrial refrigerant known for its efficiency and environmental profile, requiring specific safety protocols.

Belt width

For this category, belt widths typically range from 600mm to 1500mm, influencing product throughput and size.

Product gap

The product gap, or height between tiers, commonly varies from 80mm to 150mm, accommodating different product thicknesses.

Construction material

Spiral freezers for food processing are typically constructed from stainless steel for hygiene and corrosion resistance.

Footprint

The footprint for a spiral freezer can be substantial, often requiring a dedicated area of several square metres, depending on the number of tiers and belt length.

• What are the advantages of an ammonia-based spiral freezer?

  Ammonia is a highly efficient refrigerant, offering excellent thermodynamic properties and lower operating costs compared to some synthetic refrigerants. It is also environmentally friendly with zero ODP and GWP.

• What maintenance is typically required for a spiral freezer?

• Can this type of freezer handle different product types?

• What safety considerations are there with an ammonia system?

• What is the typical lifespan of a used spiral freezer?

Spiral freezers are valued in food processing for their compact footprint and efficient product handling. Buyers typically appreciate their gentle freezing action, which preserves product quality and texture. When purchasing used equipment, inspection of the spiral belt condition and refrigeration system performance is essential. The stainless steel construction generally resists corrosion well in demanding environments. Common considerations include maintenance costs and spare parts availability, though reliability across production runs remains a noted strength.

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