Aquaculture grader

Custom grading solutions

In aquaculture plants for sea bass, bream and trout, a grader that sorts the fish by weight is used immediately after harvesting. To maintain the quality and maximum capacity, we can offer multiple infeed systems and packing solutions. Ergonomic sorting and packing stations combined with intellingent batching software enables you to pack your fish quickly with minimum give away.

Key benefits

  • Minimum giveaway
  • Unparalleled accuracy 
  • Optimum product handling
  • Ergonomic, robust, and hygienic design
  • Integrated in turnkey solutions
  • Easy connection with MATRIX software
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MARELEC offers turnkey solutions starting with the registration of the raw material prior to the tub lifter to checkweigher systems and label printing devices at the end of the line. MARELEC offers cost-effective, customized grading solutions based on the customer's requirements and available space.


  • Belt width: 254 mm / 10 inches
  • Max. weight: up to 5 kg/ 10 lb
  • Max. length: up to 750 mm / 2.5 ft
  • Max. capacity: 150 ppm
  • Lanes: single or double
  • Multiple infeed and sorting solutions
  • Various label printing and software options
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Ergonomic design

A team of engineers translates your sorting and packing requirements into a custom grading solution. Full consideration is always given to the ergonomics for the operators. This flexible approach guarantees the perfect solution for the application while maintaining the maximum throughput as a priority with the smallest possible footprint.

Robust and hygienic design

The aquaculture graders have a completely open structure, without any hidden corners, for full ease of cleaning and disinfection. The design of the graders avoids horizontal surfaces. Batching stations can easily be opened for optimum hygiene.  All electrics and electronics are in completely sealed cabinet with a unique hygienic labyrinth double sealing. All materials used are FDA approved. To avoid housings and reductors, all motors are silent stainless steel drum motors with IP 66 or higher protection.

Easy connection with MATRIX software

The interface is quick, user-friendly and intuitive to program. Over 100 programs can be stored.
Production data can be viewed on the HMI grader. The user-friendly MATRIX program stores processing data on an office PC for traceability. In addition to full traceability, MATRIX CG will provide you with valuable KPIs to monitor and further control your process.

Subject to modifications for technical progress
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