• The Duravant family of operating companies serve the food processing, packaging and material handling segments.
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Rotary Sizing and Grading Systems


This line of versatile roller sizers and graders enables food processors to transfer and classify product efficiently—while removing field debris, broken pieces, seeds, juice, fines, and other targeted material. Our expertise and experience mean we can create rotary grade systems that ensure only the highest-quality produce reaches your customers. In addition, our ability to create integrated technology solutions for the companies we serve means that when it comes to sizing and grading, our rotary systems provide the most efficient and reliable performance found anywhere. With precision-machined rollers and compact footprints compared to other options, our rotary grading machinery delivers superior performance, easy maintenance and less downtime.

Key’s Rotary Sizing and Grading Systems feature on-the-fly tuning, no pinch points, diameter and length sizing, self-cleaning stainless steel rollers, sealed corrosion resistant bearings for low maintenance and easy cleaning for quick product change over. With a long history of leadership in automated processing solutions, we are your most complete resource for rotary sizing and grading equipment. To learn more about our complete range of rotary sizing systems, take a look at the product brochures on this page.

"We're removing more small pieces so we've improved our product quality, along with improving our operations overall.We're removing more small pieces so we've improved our product quality, along with improving our operations overall." - Production Superintendent, Del Monte Foods

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