{"id":323,"date":"2023-11-30T21:04:39","date_gmt":"2023-11-30T21:04:39","guid":{"rendered":"https:\/\/www.marcorubber.com\/blog\/?p=323"},"modified":"2025-03-19T12:21:51","modified_gmt":"2025-03-19T12:21:51","slug":"your-guide-to-metal-detectable-o-rings","status":"publish","type":"post","link":"https:\/\/www.marcorubber.com\/blog\/?p=323","title":{"rendered":"Your Guide to Metal Detectable O-Rings"},"content":{"rendered":"

In industries like food and beverage<\/a> or pharmaceutical manufacturing<\/a>, where the end user ingests the product, preventing contamination is of the utmost importance.\u00a0 This is especially true when it comes to rubber polymers, which can have <\/span>negative health effects<\/span><\/a> if ingested.<\/span><\/p>\n

Ultimately, those who operate in this space face a slew of regulatory requirements, health and safety concerns, and immense liability for the products they process, manufacture, package, or, in general, handle.<\/span><\/p>\n

Thus, when designing machinery for these applications, engineers have to be careful down to the tiniest component, including the o-rings<\/a> they use for the seals. These o-rings need to meet all the traditional requirements of a seal, such as being reliable, long-lasting, and able to withstand the needs of the application. They also need to be FDA compliant at the least, and also meet other regulatory requirements and be able to withstand harsh cleaning chemicals and practices. Additionally, they need to not pose a contamination risk.<\/span><\/p>\n

Unfortunately, o-rings can degrade over time, especially when exposed to harsh chemicals used for sterilization and clean in place (CIP) practices, and pose a contamination risk. This degradation leads to frequent o-ring replacement, but, even with this step, there still remains the question: did contamination occur? If a degraded o-ring is discovered too late, this can lead to large amounts of yield loss, extensive investigations, and massive headaches. If the contamination is undiscovered and the product causes injury, illness, or even just unease to the end user, the result could be devastating, including lawsuits and reputation damage.<\/span><\/p>\n

To avoid these dangerous situations, we recommend considering the use of metal detectable o-rings paired with inline x-rays.<\/span><\/p>\n

Metal Detectable O-Rings Benefits<\/span><\/h2>\n

During manufacturing, we add a metal filler, such as steel, bronze, or other similar material, to the o-rings. The addition of this metal does not degrade the efficacy of the o-rings, but it does appear in x-rays. At Marco Rubber, our metal detectable o-rings are available in a range of materials that are FDA compliant, including Buna<\/a>, Viton<\/a>\u00ae, Silicone<\/a>, and EPDM<\/a>. Many are available in 3A compliant formulas, as well.\u00a0<\/span><\/p>\n

While preventive maintenance is still a primary way to avoid unplanned downtime, using metal detectable o-rings in conjunction with inline x-rays helps mitigate risk and decrease the necessity of this kind of maintenance.\u00a0<\/span><\/p>\n

When using an inline x-ray to identify contaminated products, you are able to limit yield loss while improving your risk mitigation strategy.\u00a0<\/span><\/p>\n

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How to Choose a Metal Detectable O-Ring<\/span><\/h2>\n

While metal detectable o-rings offer unique benefits, choosing a metal detectable o-ring does not differ from <\/span>choosing any other o-ring<\/span><\/a>. To start, you\u2019ll need to identify the challenges your o-ring will face in your application. These commonly include:<\/span><\/p>\n