The diameter control principle was used to separate the small fruit size.The size of the diameter from small to large, from small to fruit-size gaps will fall into this horizontal basket, and those larger than the size of the gap will continue to move forward until it falls below the size of the basket.The fruit will be graded according to size and will not cause damage to the fruit.The machine has the advantages of fast sorting speed, high efficiency, saving labor and improving work efficiency.