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31-10-2016  |  9645x
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Removal of metal contaminants

Magnet or Metal Detector?

Magnetic separators filter and remove metal contamination from your product streams. They guarantee the product quality and prevent damage to machines.
Metal contaminants – also called foreign bodies – can enter your production line in all sorts of ways. Pieces of iron or steel in the raw material, staples, nails and screws from packaging, bolts and nuts that have vibrated loose, wear of the moving parts, rust or corrosion, etc. These foreign bodies can ’contaminate’ your finished product, and they can also cause severe damage to your machinery. Rejection of batches is costly, but it can be even more costly if the contamination is not detected and removed, making it necessary to conduct a product recall. You will then be faced with enormous costs and damage to your reputation.

Magnet separator or metal detector?

A magnetic separator filters (and later disposes of) or immediately removes the metal contaminants from the product stream. Magnetic separators result in practically no product loss and are suitable for removal of regularly occurring and larger quantities of metal contamination.

A metal detector is mainly used as a means of inspection for sporadically occurring metal contamination. A metal detector only detects. If you want the detected metal particle to be removed, you must also stop the production line or have a rejection mechanism eject the metal particle – resulting in the loss of a large quantity of product.

Three good reasons to install a magnet separator

1. Magnets improve your product quality/purity

Contamination or foreign bodies in food products can lead to claims, very costly product recalls and reputational damage. And not just in food: even the smallest foreign bodies are undesirable in pharmaceutical, chemical or mineral bulk streams and lower the quality of the finished product.

2. Magnets prevent damage to your production machinery
By placing a magnetic separator before the inlet of your production machinery – such as grinders, ball mills, pin mills, calenders and crushers – you prevent damage to your machinery and production standstill. A magnetic separator very effectively filters metal contaminants from your bulk stream; they function continuously and provide a high level of operational reliability.

3. Magnets prevent dust explosions

Fine dust in combination with oxygen and a source of ignition can result in dust explosions. By filtering metal particles out of the process in advance, magnets remove an important ignition source: the impact of metal on metal. This prevents serious injuries (or worse) and high costs from damage to your machines.Many of our magnetic separators are suitable for use in ATEX zone 20/21. As a certified manufacturer of ATEX equipment, Goudsmit has an externally certified quality assurance system that guarantees the explosion safety of our magnetic separators.

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