What are the main benefits of an impingement freezer over a traditional blast freezer?

Impingement freezers offer significantly faster freezing times due to direct, high-velocity air contact, leading to reduced dehydration and improved product quality compared to static or tunnel blast freezers.

Is an ammonia refrigeration system safe for food processing?

Yes, when properly designed, installed, and maintained, ammonia systems are safe and widely used in large-scale food processing due to their high efficiency and environmental benefits. Strict safety protocols and ventilation are essential.

What kind of maintenance does an IQF continuous blast freezer require?

Regular maintenance typically includes cleaning of the freezing chamber, inspection and lubrication of conveyor belts, checking fan motors and bearings, and routine servicing of the refrigeration compressor pack.

Can this freezer handle different product thicknesses?

While ideal for thin, flat products, some flexibility exists. However, optimal performance and freezing efficiency are achieved when products are within a specific thickness range for the unit's design. Thicker products may require slower belt speeds or multiple passes.

What are the typical running costs compared to cryogenic freezing?

Impingement freezers, especially those using ammonia, generally have significantly lower running costs than cryogenic systems (e.g., liquid nitrogen or CO2) due to the lower cost of electricity versus consumable cryogens, despite higher initial capital expenditure.

Used IQF Continuous Blast Freezer - Blast Freezers, photo 1

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Used IQF Continuous Blast Freezer - Blast Freezers

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Frigoscandia - IQF Continuous Blast Freezer

Name: IQF Continuous Blast Freezer
Brand: Frigoscandia
SKU: iqf-continuous-blast-freezer-784b236c
Availability: Discontinued

Price: Contact seller for price

Otherwise known as a “Impingement Freezer” Ideal for quick efficient freezing of thin flat food products High velocity jets of air simultaneously hit the product from top and bottom Quick freeze sealing freshness All the speed and quality of Cryogenic freezing at fraction of running cost Ideal for fish, meat, bakery, potato. Make: Frigoscandia Built 2004 Twin belt 870mm effective belt widths x 2 Complete with Sabroe Ammonia compressor pack

North East Lincolnshire, United Kingdom

5,929 km away

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Typical context for this category of equipment. Always confirm specifics with the seller.

Freezing of thin, flat food products such as fish fillets, seafood, and poultry portions.
Rapid freezing of bakery items like pastries, dough sheets, and pre-baked goods.
Processing of potato products, including chips, wedges, and formed potato items.
Individual Quick Freezing (IQF) of fruits and vegetables to maintain quality and separation.
High-speed freezing for ready meals components and convenience foods.

Freezing method: Impingement freezing, utilising high-velocity air jets from top and bottom.
Typical capacity: For this class of equipment, throughput can range from several hundred kilograms to several tonnes per hour, depending on product type and belt width.
Refrigerant type: Units of this type commonly use ammonia (NH3) as a primary refrigerant, as indicated by the Sabroe compressor pack.
Temperature range: Operating temperatures are typically in the range of -30°C to -40°C for effective rapid freezing.
Product suitability: Optimised for thin, flat, and relatively uniform products to ensure efficient heat transfer from both sides.
Power supply: Industrial three-phase electrical supply is required, commonly 400V, 50Hz in the UK, with significant power draw for compressors and fans.
Footprint: Continuous freezers generally require a substantial linear footprint, varying with belt length and width.

Impingement freezers offer significantly faster freezing times due to direct, high-velocity air contact, leading to reduced dehydration and improved product quality compared to static or tunnel blast freezers.

Blast freezers hold strong reputations for reliable performance in food processing operations. Buyers typically prioritise units with sturdy construction and consistent temperature control, as these directly affect product quality and shelf life. When purchasing used equipment, inspecting refrigeration systems, door seals and internal surfaces for wear is essential. Industry sentiment favours models from established manufacturers known for durability. Key strengths include rapid freezing capability, energy efficiency compared to older freezing methods, and adaptability to various food types. Proper maintenance history significantly influences buyer confidence in used units.

General overview for this equipment type

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.

Frigoscandia

Frigoscandia is the brand behind the GYRoCOMPACT spiral freezer, a design that changed how food plants freeze product at volume. Its freezing and chilling technology is part of the JBT Marel portfolio today. Machinery Masters lists used Frigoscandia equipment from verified sellers across spiral freezers and IQF systems.

View all Frigoscandia equipment