Decreasing Labor-dependence and Increasing Product Quality With Tomra Sorting Machines
Sackett Ranch, a potato producer in Michigan, has reduced manpower reliance and improved product quality after adopting Tomra sorting equipment.
The Sackett family has been cultivating potatoes in Michigan for six generations, starting with 20 acres in 1905. Sackett Ranch now comprises more than 8,200 acres (3,320 hectares), with more than 3,800 acres (1,540 hectares) dedicated to potato production for the potato chip business.
“Sackett Ranch sells by far the majority of its potatoes, some 80%, to top potato-chip brands in the U.S., and has to meet strict quality guidelines. No more than 2% of potatoes shipped to plants are permitted to be green, undersized, oversized, or with external defects. Meeting these standards is difficult or impossible, as well as time-consuming, when sorting manually. Since their investment in the Tomra 3A and Tomra 5A optical sorting machines, Sackett Ranch has found it easy to meet the quality standards by pressing a few buttons on a touchscreen,” according to a recent press release.
The Tomra 3A optical sorter is designed to eliminate extraneous items from harvested potatoes and can handle up to 100 tons (120 short tons) per hour. At Sackett Ranch, this machine successfully removes foreign items such as stones, corn cobs, mud clods, and young potatoes from the field. It also addresses the issues of recruiting and retention that potato producers frequently have when relying on manual sorters.
The Tomra 5A is a premium bulk sorting and size grader that’s very popular with potato processors. Heavy-duty, high-capacity, and high-performance, this machine detects and ejects products that are misshapen, over- or under-sized, or spoiled by rot, mold, or discoloration. At Sackett Ranch the Tomra 5A is used for a final inspection, categorizing the potatoes by size and quality while removing green and undesirable potatoes to within the 2% threshold.
“The Tomra machines have solved our labor problems. If I wasn’t using a Tomra product, I’d be scrambling every morning to find people, waiting to see who shows up and who doesn’t. Now we need just a few people. You just turn the switch on and you’re running. Before we used Tomra, we used to ship in the morning until 10.00-10.30 because I had to wait for employees. Now we can pick up an extra three hours and can do multiple processes at the same time without having to wait for personnel,” Luke Parr, Farm Manager at Sackett Ranch, said.
The other big benefit of using Tomra’s sorters, Parr reports, is ‘increased quality’.
“Our customers benefit. And I can set the size profile of each load going into them. We know exactly how much green, foreign material there is, per field and bin, and we can grade out scab more precisely than with the human eye. With manual labor, we were getting out roughly 60% of all the foreign material; now we get close to 90%. And it’s easy: the Tomra 3A and Tomra 5A have the same user interface, so programming is the same on both,” he also mentioned.
Luke has no hesitation in recommending Tomra’s sorting solutions to other potato growers, saying that Sackett Ranch’s investment in these machines has paid back with a win-win: both the grower and the grower’s customers have benefited.
