Oyster Grader

Precisely size-graded oysters

Lizotte has successfully developed the optimal lighting chamber to acquire high-resolution images in order to precisely grade oysters by size without being affected by the product’s shadow.

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Full Description


The Lizotte Oyster Grader uses custom developed artificial vision software to provide reliable grading results based on size. Software and equipment design may be modified to suit the specific needs of a particular customer. It process 3 pieces per second per lane and reject the defective oyster to ensure that only top quality product is sent to the market. This system is fully washable and ready for wash-down.



  • Rate of 3 pieces per second per lane
  • Classifies by:
    • Lenth
    • Width
    • Thickness
    • Color defect
  • Use high resolution image
  • Not affected by the shadow and color variation of the product
  • Robust wash-down stainless steel construction
  • Ejection uses air blasts or deviation gates that are non-damaging to product
  • Independent of product size and orientation
  • Operation is from the front panel touch screen
  • Optional weighing sub system for packaging

Lizotte specialize in custom-built equipment. Hence, we would be pleased to supply a personalized system that would fulfill your operational requirements.