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Fish graders
A fish grader is an essential device in aquaculture farms used to sort fish by size. Grading is crucial to optimize growth, reduce cannibalism, and organize fish batches for sale, vaccination, or transfer.
Technical Features
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Operating principle: fish are guided over adjustable ramps or grids, or moved by conveyors through calibrated openings
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Grading capacity: up to several tons per hour depending on the model and species
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Number of size grades: typically 2 to 6, adjustable mechanically or electronically
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Suitable for: fry, juveniles, and market-size fish
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Materials: stainless steel, marine-grade aluminum, food-safe plastics
Advantages
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Fast and accurate sorting, with minimal handling stress
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Improved productivity: better batch management
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Gentle handling: reduced injuries and losses
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Easily integrated into automated or mobile grading lines
Available Options
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Manual or automatic feeding (via pump, screw, or conveyor)
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Motorized adjustment of sorting openings
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Mobile sorting table or wheeled chassis
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Integrated washing system, ergonomic design for operators
