Metal Detection Test Pieces
Give Yourself Peace of Mind With Metal Detection Test Pieces
July 3, 2018
Food Grade Metal Detector
Every Food Grade Metal Detector Requires Regular Testing
July 27, 2018
Metal Detection Test Pieces
Give Yourself Peace of Mind With Metal Detection Test Pieces
July 3, 2018
Food Grade Metal Detector
Every Food Grade Metal Detector Requires Regular Testing
July 27, 2018
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Metal Detecting Equipment

Metal detector conveyor - used to control quality in food or other products. Alarm is raised if system detects faulty or contaminated product.

Metal Detecting Equipment: The Key to Safe Manufacturing

Metal detecting equipment is an absolute necessity in today’s manufacturing process. If your equipment is brand new or if even it is used it will be subjected to regular wear and tear.  This can lead to unintentional but costly contamination. Since there’s no way to avoid this , it is particularly important for manufacturers to use metal detectors to locate contaminants. Unfortunately, like any other machinery, metal detectors can also break down, and that is where test pieces can become crucial.

Since contamination is an issue, the general recommendation within the food industry is to employ a food grade metal detector.  It should be tested it hourly, at the beginning of each shift and every time you change between products. When you consider how much a single contaminant can end up costing your business, it makes sense to be careful. Each step you take to ensure safety can keep you from facing severe consequences should a tainted product reach stores.

Test Pieces

So how exactly do test pieces help to maintain the quality of your production process? It is no great mystery. The test pieces are made in a variety of types: wands, spheres, cylinders, etc. So they fit various types of metal detecting equipment. They are then made up of both ferrous and non-ferrous packs identical to the product being manufactured. These sample packs are then passed through the detector 3x, the leading, middle and trailing edge of the product. The detector is designed to pick up the presence of the metal and automatically reject the pack.

To accommodate every kind of metal detector, Regal Packaging offers four metals: ferrous, non-ferrous, stainless steel 316 and aluminum. We also produce soda lime glass, ceramic (ZrO2 and AL203), acetal, teflon and rubber for use in x-ray inspection.

Our quality test pieces can be customized to fit each customer’s individual specifications. We have worked with every type of metal detection system, so we can provide exactly what you need.

Certificates

We understand how important it is for you to meet those standards with your metal detecting equipment.  So we provide a Certificate of Conformity for each test piece we produce. You can be sure that you are getting top quality products that will give you accurate test results every time. To get the right certificate for your test pieces, just visit the “Certificates” section of our website.  And since each certificate is good for a lifetime, you will not have to worry about it expiring. You can also email us at testrods@testrods.com or call 866-691-8560.

Your business relies on having satisfied customers, so you cannot afford to skimp when it comes to safety and testing standards. We understand that, which is why we have been providing quality testing pieces since 1998. Our pieces are made from materials designed to stand up to rigorous use so that you can keep your equipment running properly for years to come. Those results are just as important to us, and our own standards are reflected in our history of satisfied customers, a history that has lasted for over 20 years.

You need to be sure that your metal detecting equipment is functioning the way you need it to because your business is counting on it. Show your customers that you put their safety first by coming to Regal for the best test pieces available on the market. That way you will know that your business is in good hands and you can pass that confidence on to your customers.

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Floatable Thermoform Test Cards

Some applications involve large tubs, vats, or some other type of product travel where it would be nice to have a test piece that floats. Once again, our thermoform cards provide the simplest solution. We simply insert some type of structure that forces the thermoform card to retain air, which, of course, is what makes it float. We have also manufactured floating rods, which are more difficult because there is less space to close in enough air to make the rod float but is doable.

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We took an ordinary plastic “chip clip” as defined by the customer and embedded the contaminant into the clip. The clip can be attached to the product on the line without damaging or opening the product for testing purposes.

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Bone is a difficult contaminant to find because it can vary widely based on the size, age, and calcium content (as well as feed used) of the animal. After working with several customers, Regal Packaging Services offers Pork, Beef and Chicken Bone Simulate. We have a small range of sizes at a variety of depths to simulate whatever you might expect to find in the product. Our recommendation (assuming your x-ray has visual display) is always to start with a multi-card. Using a multi-card gives you an easy way to test several sizes and depths to determine what matches the bone you’re using. Once you’ve made a comparison, testing the card against the bone you’re looking for, you can purchase a card with a single contaminant for regular testing.

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This small pill shaped test piece is used in a system with a vacuum tube that shoots the test piece through the aperture and returns it to the “home” base. Your system may never be like it, but the point is that we can make a customized solution no matter how unusual or impossible it might seem.

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As you may have seen in some of the other thermoform card descriptions, we can put nearly as many seeds as you can imagine on a single card. Pictured here you will find a wide variety of configurations and contaminants. Just let us know your specs: size of the card (up to 8” x 8”) along with size and type contaminant(s) and we’ll get you a quote as quickly as possible. Working with a multi-card is especially helpful when you are looking for multiple types of contaminants or when you want to determine what size of the same contaminant you are able to detect. In that event, once the size is chosen, you can order individual card(s) for regular, standard inspection and detection.

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There are a wide range of applications that require a test piece much longer than our standard 5” or 6” Testrods. We can make up to 3/8” x 34” or 1/2” x 34” rigid test pieces which can then be extended well beyond that length with a “handle” made of acetal cylinder larger than the 3/8” or 1/2” extension. In the photos, we used a 1” x 24” cylinder handle with a 3/8” x 24” inch extension.

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Test pieces can be made in a variety of sizes and given a pointed end in applications that require the contaminant (metal) to be inserted into a food package such as sugar or some other soft packaged food product. This allows the metal to reach the center of the aperture.

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Double-End Test Whips are also available, with metal in both ends. One consideration is to make certain that the whip is long enough to keep the metal on the non-testing side of the whip outside the metal free zone of your detector. If you insert, for instance one end of a whip with 2.0mm and 3.0mm Ferrous, you need to make certain that the 2.0mm metal doesn’t affect the detection of the 3.0mm metal (and vice versa). If the 3.0mm metal is inside the metal free zone, then the detector will be reacting to the 2.0 as well as the 3.0 as if they were combined.

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Multi-seed laminate test cards are designed for seeds 4.0mm or less. Multi-cards are useful in x-ray inspection to determine what sizes and types of contaminants your system can achieve. They can be especially useful in temperate environments and applications. If your application is rugged or wet, or your standards are larger, we recommend our thermoform multi-cards.

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We can simulate a variety of packaging in an application where you need the test piece to mimic what is traveling down the production line. In this case, we manufactured a clear “package” with the seed inside. With this method, the customer is able to reject the container appropriately, and, in the event the package is not rejected, it is easily seen by the line worker for manual removal.

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There are two types of “candy bars” pictured here – one similar to a flat candy bar and the other in a custom, near perfect copy of a candy bar. Since we’re now able to produce many variations using colored material, the copy was made in red (Fe), green (NFe) and blue (SS 316). We have the equipment to accomplish nearly anything you can imagine, and these kinds of designs are proof positive.

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Need a test piece that looks and handles like chicken nugget? We can do it. Interestingly enough, in this situation, our first version for the customer left too much “void” in the hole where the metal was placed. Given the sensitivity the customer system was using, the void had the effect of causing false positives. We were able to minimize that hole and supply the test piece with almost no void. It’s an example of how we can work with you before, during and after manufacturing to ensure all the specifications were met.

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Our standard acetal card is 2 1/4"x3 3/8,” but if needed, we can cut that size down to as small as 1 1/4” x 1 1/4” (with limited engraving). If a larger card or a card with multiple seeds is needed, see our Custom Shape-Size Blocks and Tablets.

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This distinctive test piece was created to mimic an actual hamburger patty. The customer supplied photos of the raw product, which we were able to reproduce and then we placed blue glove contaminant. Using this configuration, the customer was able to determine what size piece the vision scanning system could detect with the raw burger as the background. Had they simply used a blank card with the glove, the system could easily have achieved contaminant rejection, but they needed to be sure the system could “see” the blue against the product itself.

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A card with 100 seeds in a 10x10 configuration is used to place beneath whole chickens on a production line. This gives the x-ray system operator the ability not just to see IF the equipment can detect the metal in the card, but also WHERE the equipment can detect it. If there is a problem, the operator (or company) can make any changes necessary to achieve the end goal – safe chicken in this case. This card really highlights another valuable facet of our thermoform cards.

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In this scenario, a company processing sugar needed to have a “bag” simulated with the same weight in order to accurately fall through the reject mechanism. A lighter test piece had the risk of passing over the reject mechanism.

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Our standard cubes are 1” and 1.5,” but we can also manufacture other sizes if needed. The cubes shown here are 1/2" in dimensions. Cubes can be helpful in applications where a ball or cylinder may bounce or roll away during testing, making their retrieval difficult, or, in some cases, present a hazard to the product or production equipment.

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This is a test piece that is dropped into a bottle. It’s designed so that the metal appears in the center of the aperture when testing the metal detector. In addition, the round stop makes the test piece easily removable after testing.

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Hexagonal Shaped test pieces can be very useful in places where a cylinder or ball might roll or bounce around a production floor whether dropped by a line worker or ejection from a reject mechanism. Hexagons are similar in weight to the 1inch cylinders without having the smooth, rounded cylinder edge.

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Our customer in this plant needed a test piece with a thickness less than 5.0mm. Because we have the capacity to customize sizes and shapes, we were able to mill down a product that met their specifications. That’s always our goal, meeting the specs you need for your product, testing environment and contaminants.