This roller conveyor is suitable for spherical or oblong fruit and vegetable (such as apple, pear, mango, tomato) sorting. It consists of frames, reducers, rollers, and other components. After the raw materials enter the machine, under the action of gravity, the raw materials are paved on the surface of the roller in a single layer by themselves. The Stainless steel chain drives the roller to revolve. The roller on the working surface rubs and rotates on the rubber track, which drives the fruit and vegetables to rotate freely. The unqualified fruits and vegetables are sorted out by manually during the material movement to ensure the quality of the fruits and vegetables.