Precision Planting Smoothes out Rough Edges with Miniature Deburring Brush

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Proper industrial brush selection allows Precision Planting to automate intricate surface finishing operations and deliver consistent quality

One of our newest systems has tubes that are injection molded, and we had great concern about removing the residual flashing that was created by the molding process

Precision Planting, Inc. of Tremont, IL has overcome a troublesome residual flashing in a molded part that threatened to hamper the accuracy of its product by incorporating a unique abrasive nylon deburring brush from Brush Research Manufacturing.

When it comes to small parts requiring deburring, edge blending or other surface finishing, a miniature deburring brush can solve productivity and quality challenges involved when manufacturing parts of various small sizes, contours and materials.

An industry leader in agricultural seed planting equipment, Precision Planting manufactures a variety of systems that are designed to solve exact seed spacing and placement issues. Because the accuracy of seed placement is heavily reliant on precise timing, it is critical that the surface finish of the seed ejection component be void of even the slightest variations and irregularities.

"One of our newest systems has tubes that are injection molded, and we had great concern about removing the residual flashing that was created by the molding process," explains Precision Planting Engineer Derek Sauder. "It may only be only .002 to .005 in. thick. While not very long, the ridge of the flashing is rough and would cause problems in the performance of our part."

Sauder explains that the component is used in planting seed for corn, beans and other crops. In operation, the part has a vacuum applied to one side, and the other side contains the seed. "The seed is held by vacuum against a hole in the part," he says. "If we didn't remove the flashing, it may grab onto the seed and cause it not to release properly."

In the initial phase of development, the part would not perform without the flashing being removed. Getting the seeds to accurately release was only achieved when an abrasive nylon brush from Brush Research Manufacturing (Los Angeles, CA) was incorporated into the manufacturing process.

Brush Research Manufacturing designs and produces miniature deburring brushes and honing tools in an assortment of designs, sizes and materials. There are several types of industrial brushes that vary not just in size, but also in filament type. Carbon steel, stainless steel, brass, nylon and abrasive filled nylon are commonly used. Abrasive filled nylon can contain silicon carbide, aluminum oxide or diamond abrasive.

Although customers typically know what size of deburring brush or honing tool is required for their applications, Brush Research Manufacturing's engineering department is available for consultation to ensure proper selection for any application.

For Precision Planting, a nylon filament was recommended. Abrasive nylon brushes are not reactive, so the industrial brush will not impart carbon impurities onto the surface of the product. Nylon also will not oxidize.

"So, we knew the miniature nylon brush was necessary," says Sauder. "It worked quite well, so I was confident that we had a good solution. We had tried the injection molded piece without the nylon brush, and it didn't work as well."

Sauder adds that while the nylon deburring brush does not speed part production, it is automated and therefore highly efficient.

"It has allowed our products to become the most accurate planting equipment in the market," he says. "Our product is well known in the marketplace, and his process helps us attain that. It is economical and gives us good results."

Established in 1958, Brush Research Manufacturing designs and produces flexible honing tools and miniature deburring brushes in an assortment of designs, sizes and materials.

For more information, contact Brush Research Manufacturing, Brush Research Mfg. Co., Inc., 4642 East Floral Drive, Los Angeles, CA 90022; Phone: (323) 261-2193; Fax: (323) 268-6587; email: info(at)brushresearch(dot)com or visit the web site:


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