The design and development of a skew bar topper for sugar beet
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Abstract Conventional methods of topping sugar beet can be very wasteful due to the loss of usable inner crown material when discarded above a horizontal cut. Also, soil, stones and trash can obstruct the cutter and in sandy abrasive soils the knives need frequent sharpening. Increases in root weight of up to 12% may be achieved if the leaf, petiole and green skin only can be removed during topping. Two mechanisms for improved topping have been tested, the most promising employs a rotating cylinder cutter. This is capable of generating a convex cut surface thereby leaving usable inner crown material on the beet. It can also accommodate a wide range of root sizes which further reduces waste.