AFAK Roller grading machine

Machine for grading all kind of round fish like herring, mackerel, horse mackerel, sprat, sardine, blue witling etc. By means of rotating rollers and water film the fish glides on angle downwards. On the side of the machine you can change the position of the rollers by means of a wheel. Due to position of the rollers the fish will fall trough. Under the machine there are mostly 5 grades. In order to adjust the gaps between the rollers you can install the grade variation. This machine can be built on customer specifications. Machine can be delivered with vibration infeed cute or just a fixed cute.

Types available

20 rollers *

~  9 Tons / hour (sprat) 


14 rollers

~30 Tons / hour


10 rollers 

~18 Tons / hour


 8  rollers 

~15 Tons / hour


 6  rollers

~11 Tons / hour

Technical specifications

Rollers driven by

Gear motor 1.1 until 2.2 KW

Frequency inverter required

Vibration chute

Gear motor 1.1 until 1.5 KW

Frequency inverter required


Reinforced plate 3 mm and profiles

Stainless steel


1205 TNG

Stainless steel

Drive work

Chain wheels ⅝ simplex Z=15

Stainless steel

Drive work

Chain ⅝ side bow

Stainless steel


Ø 118, L=4m / L=3.5m L=3m

Stainless steel




To be used for

Trawlers and fish factories



Hydraulically operated


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