Sweet potato grader, also known as sweet potato size sorter, is a new generation of automatic sorting products instead of traditional manual sweet potato sorting.

The disadvantages of manual sweet potato sorting are as follows: the long-term sorting process of staff is boring and mechanical movement, which may easily lead to visual fatigue, error-prone and confusion in grading selection. With the increase of labor cost, the sorting cost also increases correspondingly.

The advantages of mechanical sweet potato sorting compared with manual sweet potato sorting are fast speed, high precision and low cost. Sweet potato classifier not only improves the sorting speed and uniformity, but also reduces the sorting cost.