Jackstone Froster Vertical Plate Freezer

• Freezing of pelagic fish (e.g., mackerel, herring) in blocks for storage and transport.
• Block freezing of meat products, offal, or poultry for further processing or export.
• Suitable for freezing liquid or semi-liquid products in trays or bags within the plates.
• Used in large-scale fishing vessels and onshore processing plants for rapid freezing.

Typical capacity

For this class of equipment, units commonly feature between 15 to 25 freezing stations, producing blocks of varying weights depending on product density and block dimensions.

Block thickness

Units of this type typically offer plate gaps ranging from 50mm to 100mm, accommodating different block sizes.

Refrigerant type

Older units commonly utilise Freon-based refrigerants (e.g., R22), while newer or retrofitted units may use HFCs or natural refrigerants.

Freezing time

Typical freezing times for vertical plate freezers range from 2 to 4 hours, depending on product type, block thickness, and refrigerant temperature.

Power supply

Industrial plate freezers commonly require a three-phase electrical supply, typically 400V, 50Hz, with varying amperage requirements based on compressor size.

Footprint

Units of this configuration typically have a significant vertical and horizontal footprint, requiring adequate space for installation and maintenance access.

• What maintenance is typically required for a used vertical plate freezer?

  Regular maintenance for these units commonly involves checking refrigerant levels, inspecting plate surfaces for damage, verifying hydraulic system integrity, and ensuring all seals are in good condition. Electrical components and safety interlocks should also be routinely checked.

• Can this type of freezer be used for different product sizes?

• What are the common considerations when installing a vertical plate freezer?

• Is a hydraulic system always part of a vertical plate freezer?

Plate freezers are valued for their efficiency in rapid product freezing across food processing applications. Buyers typically appreciate their compact footprint and consistent performance. When purchasing used equipment, inspecting plate condition for corrosion or damage is essential, as worn plates reduce freezing efficiency. Key strengths include reliable operation, relatively straightforward maintenance requirements, and suitability for batch processing. Industry sentiment favours models from established manufacturers with documented service histories. Buyers should verify refrigeration system integrity and confirm spare parts availability before committing to purchase.

General overview for this equipment type