IQF Portion Grader

High-speed grader with gentle handling

  • Throughput of up to 100 pieces per minute per lane
  • Minimal giveaway with fixed-weight batching
  • Accurate grading by weight or length
  • Install as a stand-alone unit or part of full-line integration


The IQF Portion Grader distributes frozen fish portions into bulk bins or boxes for multiple product lines.

Automatic waterfall infeed

Frozen portions can be introduced directly from a spiral freezer into the waterfall infeed. The accelerator conveyor belt automatically adjusts and maintains product spacing to optimize throughput speed.

Scanned for weight and length

On entry, the vision camera scans portions for length, while dynamic scales at the beginning of each lane accurately weigh each piece.

Minimize giveaway

Automatic drop gates lift and lower, grading portions by weight or length into bulk bins or boxes.


Marel offers a range of service solutions to prevent failures, maximize performance or in case of unexpected breakdowns remote or onsite assistance.

Marel has offices in 30 countries across all regions, and a global network of highly skilled professionals that provide remote as well as onsite service support. We provide quality spare parts and customized service agreements for our customers to ensure optimal performance of Marel equipment.


Get in touch

Our dedicated team is here to help and answer any questions you might have.

We look forward to hearing from you, and we will do our very best to get back to you as soon as possible.