Solea Belgium N.V., a Dupont company, recently introduced a new type of magnetic separator in their powder line; the Easy cleanflow magnet from Goudsmit Magnetics of Waalre (NL). This magnet checks soya powder for metal contaminants, such as stainless-steel wear particles. The metal particles get into the product as a result of friction at the dryer drum and are absolutely undesirable. Solea's design requirements for the magnetic separator were that no operator would be required, and that cleaning of the unit could be performed safely and efficiently. The unit also had to be dust-tight, food-proof and fitted with food-safe EC1935 seals. The magnetic separator placed under the vibrating sieve meets all the requirements and removes minuscule metal particles and weakly magnetic stainless-steel particles as small as 30μm from powders.

Solae is a food producer and, among other things, they process a residue of soya powder into an ingredient for the animal feed industry. The residue contains minuscule metal particles approximately 30μm in size and stainless steel wear particles, which the Easy cleanflow magnet removes. Grade 316 stainless steel, in particular, is difficult to extract. This magnet is suitable for large production flows, and its distinguishing characteristic is the very high magnetic flux density of over 12,000 gauss at the contact surface of the bars. The presence of a deflector ensures that the product comes into direct contact with the bars, and the magnet captures no less than 60 percent of the difficult-to-filter grade 316 stainless steel particles. The magnet has a deep magnetic field and is dust-tight to an overpressure of 0.5 bar. It has a simple electric/pneumatic control for user-friendly cleaning.

Found in most food processing companies, magnetic separators are important filters for very fine metal separation. They even capture metal particles that a metal detector would miss. Magnetic separators, such as the Easy cleanflow magnet, ensure optimum quality of the end product. They also prevent product recalls and costly damage claims, as well as – in some cases – machine crashes.

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