High Speed, Accurate Grading and Compact

VAKI Fish Grader

VAKI fish grader has been designed for the high speed grading of large numbers of live fish, smolt, juveniles and fry. The size range for salmon-ids and equivalent is 1g up to 100g and the capacity is up to 6.000 kg/hour. The grader is circular and requires less floor space than other grading machines.

How it works

The fish are graded by thickness. The grader carousel has sixteen boxes that rotate within the grader. As each box passes over an outlet the opening in the bottom of the box is automatically increased to a preselected size. The grading gaps can be set from fully closed to 25mm wide. The length of the box limits the maximum size of fish which can be sorted. The fish are graded by thickness. The standard grader has 4 outlets and a single fish inlet. Fish can be pumped or netted into the grader. The inlet can be angled to increase or slow down the fish flow into the grader and the inlet has an integrated de-watering box. There is a 360° adjustment in the direction of the outlets from the grader. The grader has speed regulator which can adjust the speed from 5 – 12 rpm.  Mains power supply by either single or three phases. Fish stay in water because water flows into the rotating grading boxes from the integrated sprinkler system.  The fish remain in water at all times during the grading and pass easily through the outlet pipes. The grader is constructed from stainless steel. It has height adjustable legs and is fully portable on rubber wheels.



• High capacity
• 4 grades
• Gentle on fish
• Grades from 0.5mm – 25mm wide (+/- 0.5mm)
• Compact and light
• Easily adjustable


The VAKI grader has a speed regulator to adjust the rotation speed from 5–10 rpm. If the grader is run at 10 rpm then 9600 boxes are used in one hour (16x10x60), with 5 fish on average in each box then 48.000 fish are graded in one hour.



Fish are in water at all times during grading. Water flows into the grading boxes from the integrated sprinkler system ensuring the fish remain in water and pass easily away through the outlet pipes.


A series of tests have been made to measure the accuracy of the VAKI fish grader. By taking samples from grading operations to measure the thickness, weight and length of graded fish for comparison to the grading gap selected. These studies have confirmed the accuracy of the VAKI fish grader.



The fish are graded by thickness with the size range for salmon ids from 1g – 100g.


Salmon, trout, sea bass, sea bream, halibut, turbot, cod, tilapia, barramundi, char, king fish and more.


Nr. of GradersCustomerCountryType
1ACUITEC S.L.Spain96 cm Grader
1AquaPro Solutions Pte Ltd.Singapore96 cm Grader
1Arnarlax ehf.Iceland96 cm Grader
1Åsen Settefisk ASNorwaySmart Grader
1Basis 57, Nachhaltige WassernutzungSwitzerland96 cm Grader
1Catvis BVNetherland96 cm Grader
1Cooke Aquaculture UKUKSmart Grader
1Cooke Aquaculture USA Inc.USA & Canada140 cm Grader
1Creative Salmon Company Ltd.Canada96 cm Grader
1Cromaris d.d.Croatia96 cm Grader
1Dawnfresh SeafoodsUK140 cm Grader
1Dundalk Bay Seafood's LtdIreland140 cm Grader
1Earth Ocean FarmsMexico96 cm Grader
1Eldisstöðin ÍsþórIcelandSmart Grader
1Eldisstöðin ÍsþórIceland140 cm Grader
1Fossing StorsmoltNorwaySmart Grader
1Framnessmolt ASNorwaySmart Grader
1Grieg Seafood BCCanada140 cm Grader
1Grieg Seafood FinnmarkNorway96 cm Grader
1Hushållningssällskapet VästernorrlandSweden96 cm Grader
1Interfish Ltd.Bulgaria96 cm Grader
1Kelly Cove Salmon Ltd.CanadaDrum Grader
1Luna P/FFaeroe IslandsSmart Grader
1Matorka ehf.IcelandSmart Grader
1Matorka ehf.Iceland96 cm Grader
1Midtnorsk HavbrukNorwaySmart Grader
1Mowi Norway ASNorwaySmart Grader
1Quan Ying (Fujian) Technology CompanyChina96 cm Grader
1Salmon smolt Nz Ltd.New Zealand96 cm Grader
1Samherji FiskeldiIcelandSmart Grader
2Statkraft Sverige ABSweden96 cm Grader
1Toskedal ASNorway96 cm Grader
1Tropenhaus Frutigen AGSwitzerland140 cm Grader
1VAKI ChileChile140 cm Grader
1VAKI ChileChileSmart Grader
1Yellowtail King FishAustralia96 cm Grader


+354 595 3010

Akralind 4, 201 Kópavogur


Akralind 4
201 Kópavogur
Tel (+354) 595 3000


VAKI is one of MSD Animal Health (MSD) fish and aquaculture company.
MSD is the world’s leading animal intelligence group, providing world-class devices for animal identification and traceability. Our pioneering monitoring solutions deliver smart data products and services for the management and wellbeing of all animals.

Any questions about our products or services ?

Let us know and our experts will get back to you

You have Successfully Subscribed!