BOC Nitrogen Freezer

• Rapid freezing of delicate food products such as berries, prawns, and pasta to maintain individual integrity.
• Cryogenic freezing of bakery items, prepared meals, and vegetables to preserve texture and flavour.
• Batch or continuous freezing processes in food manufacturing for increased throughput.
• Specialised freezing for pharmaceuticals or other temperature-sensitive industrial products.

Typical capacity

Throughput varies significantly based on product type and desired temperature, but units of this class typically process hundreds of kilograms per hour.

Power supply

Commonly requires a 400V, 3-phase electrical supply for motors and controls, in addition to the liquid nitrogen supply.

Footprint

Given the 7800mm belt length, this unit has a substantial footprint, typically requiring a dedicated area of at least 8m x 2m for operation and maintenance access.

Belt width

The 600mm belt width is suitable for a range of product sizes and throughput requirements for this class of equipment.

Construction materials

Components in contact with product or cryogenic temperatures are typically stainless steel, with the main frame often mild steel for structural integrity.

Temperature range

Nitrogen freezers operate at extremely low temperatures, typically down to -100°C or colder within the freezing tunnel.

Nitrogen consumption

Consumption rates are highly dependent on product load, initial temperature, and desired final temperature, but can be significant for continuous operation.

• What are the primary benefits of a nitrogen freezer over mechanical freezing?

  Nitrogen freezers offer extremely rapid freezing rates, which helps to preserve product quality, texture, and reduce dehydration. They are also highly flexible for various product types.

• What kind of maintenance is typically required for a unit like this?

• Is special ventilation required for a nitrogen freezer?

• Can this unit be integrated into an existing processing line?

• What safety considerations are important when operating a nitrogen freezer?

IQF systems are highly regarded in food processing for their ability to freeze individual products uniformly whilst maintaining quality and texture. Buyers typically value machines with reliable refrigeration components and consistent belt speed control. When purchasing used equipment, inspecting freezing chamber condition, verifying temperature consistency, and checking refrigerant integrity are essential. Industry users appreciate their efficiency in handling delicate items and relatively low maintenance demands compared to alternative freezing methods.

General overview for this equipment type