Used for grading of potato, onion and garlic. Machine is fitted with vibrating rubber screens having perforations on the surface. Perforation on the rubber screens differs according to the product. Shaker assembly is fitted to vibrate the screen. Greater grading efficiency. Required number of modules can be attached to form a complete line. Machine is fabricated in modular type; each module grades the product as oversize and undersize. Contact parts are fabricated from food grade material & structure made of mild steel.