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Metal detectable balls in Natural Rubber

Balls with additives for metal detecting equipement.
Magnetic metal detectable balls in Natural Rubber
Product description

Balls developed in a Natural Rubber compound with metal detectable additives for metal detecting equipement allowing for easy identifying.

  • No metal insert needed
  • Magnetic parts in the rubber compound
Food quality control

Food quality control is of the utmost importance and has become a growing global trend. It is expected from the food producers to be aware of all safety risks. Therefore finding contaminants in your packaged food products is critical to protecting your brand. Just one incident of food safety contamination puts your company’s reputation on the line.

This comprehensive food safety and quality can be achieved by implementing one or more inspection sytems to your production line. The most common ways for manufacturers to detect foreign materials in-house are : inline magnets, inline strainers, metal detectors and X-ray machines. These inspection systems can not only detect metals, but also many other contaminents, such as glass, ceramics, stones, PVC and important to mention our brand new Arubis detectable rubber balls.

We developed a metal/x-ray detectable natural rubber compound. Rubber sheets and balls from this compound were tested against magnets, metal detector and X-ray machine.

The results of our test can be found on the documents section below. Please note that all tests were performed for comparison purposes. The results should be treated as such and data supplied should not form the basis for certified datasheets.

Metal detection

Metal detection results are difficult to translate between systems as results will vary with factors such as size, shape of „contaminant” and machine setting. Our test was conducted on a metal detector with 300mm x 150mm aperture and an approximate running speed of 42m/min. The machine was balanced using the phase control and sensitivity to allow detection of the typical detectable content in our rubber balls as well as standard ferrous balls. Results have been converted to an approximate ferrous ball equivalent.

Magnetic Pull

Many food companies use magnetic separators to find and remove contamination. Magnetic separators are available in a wide range of designs and have different uses. The most common magnetic separators used in the food industry are: bar magnets, plate magnets, grate magnets, liquid line trap magnets and suspended magnets.

Our standard rubber sample (5mm x 5mm x 3mm thick) was tested for magnetic pull by moving the magnet down towards the samples until they were attracted up to it. The recorded value, were the distance from the magnet to the top surface of the sample when the sample moved to the magnet, was 11.8mm. The magnet utilized had a diameter of 20mm and a pull of 3.6kg.

X-Ray detection

X-ray detectability testing was performed on X-ray inspection system by Dylight. This type of machine is typically used by food processing plants in order to detect foreign inclusions in food products. The food product utilized for the testing procedure was a 50mm thick layer of sugar, held within a plastic container. In this case our tested material were round samples of 3mm (left) and 10mm (right) with a thickness of 2mm.

The particles are strongly detectable and the image proves that detectability by X-ray is still strong against the food product even down to 3mm diameter by 2mm thickness.

Food regulations

Food product manufacturers are very particular about standards put in place by the FDA and other regulatory agencies. These standards define the purity and reliability of a product or process, and prioritize public safety.

Rubber parts of any food processing equipment, in order to be used, should meet the CFR 21 FDA 177.2600 standard -‘rubber articles intended for repeated use’- requirements. To assess whether the rubber sample fulfils the global migration criteria as specified in CFR 21 FDA 177.2600 a Soxhlet extraction is used on the rubber part in n-hexane and in de-ionized water.

The sample meets the FDA requirements according to CFR177.2600 paragraph (e & f) for repeated use in contact with aqueous and fatty foods.

Documents Catalogs Available qualities