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Jun 10, 2026 . 0 Comments

Fish Processing Production Line: Equipment Composition and Process Flow

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Overview of fish processing production line equipment including vacuum fish pumps, grading machines, processing equipment, weighing units, and freezing systems.

Fish Processing Production Line: Equipment and Process Flow

Currently, the technical equipment level of fish product processing lines in domestic use varies significantly. Many still employ manual production techniques, with most equipment remaining at the level of the 1980s, featuring low automation — especially for fish processing lines used on ocean-going fishing vessels.

Production Line Equipment Composition

A typical fish product processing line consists of the following equipment:

  1. Feeding equipment (vacuum fish pump)
  2. Fish grading machine
  3. Fish product processing equipment
  4. Weighing unit
  5. Plate freezer
  6. Packing and boxing unit

Process Flow

  • Fish holds are emptied using a vacuum fish pump to extract the catch.
  • The fish are discharged onto a conveyor belt and transported to the grading machine for sorting.
  • After grading, the fish are processed using specialized fish processing equipment.
  • Processed fish are weighed, packed, and frozen using the plate freezer.
  • Finally, the fish products are boxed and transferred to the cargo hold.

Complete Process Flow Diagram

Fish Hold -> Vacuum Fish Pump -> Conveyor Belt -> Fish Grading Machine -> Fish Processing Equipment -> Weighing Unit -> Packing -> Plate Freezer -> Boxing -> Product Cargo Hold

Key Technical Considerations

  • The integration of PLC (Programmable Logic Controller) systems can significantly improve automation levels and processing consistency.
  • Modern processing lines should incorporate automated descaling, cleaning, filleting, and grading stations.
  • Equipment selection should consider the target fish species, processing volume, and required end products.
  • Proper equipment maintenance and regular calibration are essential for maintaining production quality and food safety standards.

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