... 2.Total power: 1.5KW 3.Power supply: AC380V, 50HZ potato grading machineAdvantages and applications: This electronic fruit grader is efficient and ... precise. It's widely used for grading apples, pears, persimmons, onions, lemons, mangos, pomelo, jujube, and other ... about 1.5 times of that of the traditional machine potato grading machine