•Emile MAROT Graders separate grains depending on their size.
•The precision of the sorting process is obtained by means of a rotating drum whose angle and rotation speed can be changed.
•The device is chosen according to the number of products and flow rate desired.
•The first criterion determines the number of sections required (3 to 5) and the second, the diameter of the drum (630 to 1,610 mm).
•When the number of grain categories which must be obtained is very high, as for coffee, grading is achieved using a combination of modular devices.