G B600 and G B800 belt graders are designed for grading potatoes, onions, beetroot and other similar products into three sizes. They are available in two different widths, to meet varying capacity requirements. Grading is with the help of two endless net belts with different size meshes. Under each belt are two agitators that shake the net, to ensure that the product is correctly graded. Belt and agitator speeds can be set independently of each another. The fact that the riddle surfaces are a full 1 500 mm long guarantees very high grading precision. Output is via conveyor or chute.