Spiral Freezer Manufacturers
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Browse Spiral Freezer Suppliers →Spiral freezers — operation and applications
A spiral freezer is a continuous food freezer in which product travels on a self-stacking conveyor belt that winds in a continuous helix (spiral) through a tall, compact insulated cabinet filled with circulating cold air. The spiral configuration allows a very long belt path (and therefore a long freezing time) within a small footprint — a spiral freezer of 5m diameter and 5m height may have 50–80m of belt path. Cold air is circulated either inside-out (from a central drum outwards) or top-down (from evaporator coils above the product). Spiral freezers are used for products that are too large, fragile, or irregular to fluidise — breaded fish fillets and portions, burger patties, fried chicken pieces, poultry joints, ready meal trays, bakery products, and cooked pasta dishes. Products that require careful handling to preserve coating integrity (breadcrumbed or battered products) benefit from the gentle spiral belt transport compared to bulk handling. Spiral freezers are available as single or double drum configurations and in a range of belt widths and capacities.