Lime is a citrus fruit that is usually round, green, and 3-6 cm in diameter. Lime is rich in vitamin C, has a sour taste, and is often used to enhance the flavor of foods and beverages. They grow year-round.

There are many varieties of limes in different shapes found in nature. The general roller grader can only sort one variety of limes, which has limitations. FstSort's latest designed and produced adjustable roller sorting machine (Roller Grader can be manufactured with varying grade size range from 25mm to 120mm).

This fruit processing equipment is specially designed to grade and sort various lime varieties according to diameter size, automatically classifying fruits of different qualities with the highest efficiency and capacity, and greatly saving the cost borne by packaging plants for such processing.