Metal Detection

Eriez manufactures the broadest range of metal detectors in the industry. Whether looking for small ferrous or nonferrous metal pieces, tramp metal or digger teeth, we can provide you with a metal detector to solve practically every metal contamination problem.

Eriez state of the art metal detection technology makes it possible to incorporate metal detection at several stages in a process, not just at the output. In fact, metal detectors should be used wherever there is the chance that metal particles may contaminate a product stream. This is especially true when the product is one that may be consumed by humans or animals (whether intentionally or not), when the product purity is a safety consideration (such as explosives), or when the contaminant particles may be of a size and type that could damage downstream processing equipment. Historically, metal detection has been employed at the output of a process, primarily to reduce liability for contaminated product. Such a location will prevent the release of contaminated product and aid in identification of failing process equipment. Metal detection at the input point of a process is also appropriate, sometimes vital, if the feedstock could be contaminated. Even if the contamination would not necessarily damage process equipment, product that would eventually be rejected by detectors at the output side could result in much processing cost wasted as a result of undetected contaminated feed. A single metal object in the feedstock, one that could be detected at the feed point and rejected at negligible cost, might be spread by processing so that an entire batch of product is ruined. This principle applies equally to intermediate steps in the processing of a product-if the output of an expensive process step is susceptible to rejection for metal contamination, both the input and the output of that step should be monitored by metal detectors.

Metal detectors can also be used is to verify that desired metal objects ARE present in packaged products-such as novelties in breakfast food boxes. Here again, it is important to monitor the product both before and after the process step in which the metal item is to be inserted, to be certain that the detected metal at the output point is the desired object and does not include contamination carried from the input.

Eriez also manufactures a full line of Cabinet X-Ray equipment to meet your full Inspection System needs.