The key element in preparing onions for sale is dividing them into appropriate fractions. Before fractionation, the onions need to have their stems trimmed.

Onions retrieved from storage are fed into a dosing buffer integrated with a box pallet tipper KD (1). The buffer’s task is to ensure a consistent and uniform feed of goods to the production line. Through an intermediary conveyor (2), the buffer delivers the onions to the stem cutter OM-3 (3). The trimmed onions are then fed into the first belt grader with a sorting belt size of 36x36mm (4). Onions with a diameter of up to 36mm are directed to the box pallet (5), while those above 36mm are sent to the next belt grader (6), in which, using a sorting belt size of 50x50mm, the goods are divided into fractions of 35-50mm (7) and above 50mm (8).