The onion topper is designed to remove the tail and foliage of onions and shallots cleanly and safely with rotating blades, while also removing loose skin and dirt.

The string grader is designed to separate smaller from bigger size produce. In a string grader produce rolls over the strings to the outfeed. Undersized produce falls between the strings.
The string grader has various applications like undersize removal or as a pregrader for onion toppers. By separating smaller from bigger produce, the capacity per individual onion topper increases. Pregrading also increases the quality of the topping process.