Graders with revolving rollers for live trouts and salmons with a stainless steel body built on a hot galvanized steel (at request, also frame in stainless steel). These kind of graders are equipped with a special fish pump to suck and select the fish automatically. Wheels and shaft make possible to move the graders all over the fish farm (also using a farm tractor).
On one side of the grader there are some special devices adjusting rollers and bottoms to obtein three different sizes of fish contempraneously. The grader is also equipped with a self-priming water pump that feed the machine, keeping the fish alive and sliding into the discharging hoses. Complete of electric panel and accessories.
Stainless steel frame