Optical grader, also known as light classifier, can not only classify the size of products, but also classify the appearance quality and internal quality of products.

A company that provides grading solutions for many onion growers believes that optical grading is a more efficient and accurate way to ensure onion quality. This is indeed undeniable. But for some small and medium-sized onion growers, optical sorting of Onions may be difficult.

Our drum grader can sort Onions according to their size. The sorting efficiency is high and accurate, and the price is very favorable.All you need to do is to measure the diameter of the onion and determine the diameter range you want to separate. We will customize the size of the drum according to your specific needs.