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Separate out metal fractions

For scrap metal recyclers, being able to use one technology for multiple applications and sort zorba, twitch, heavy metals, zurik, incinerator bottom ash and so on is a significant advantage.

Redwave’s XRF machine (above) sep­arates light scrap from heavy, such as heavy metals from aluminium in zorba, and it also further sep­arates the aluminium stream into different fractions. These fractions are of high quality and can be used directly in a smelter after only one sorting step.

The XRF machine includes a new free-fall design, which combines XRF with camera recognition and an advanced software algorithm. This means that it not only qualifies the material in terms of elements, but the algorithm calculates the percentage of the element.

This makes it possible to not only sort alloy groups from each other, but to also sort within the same alloy group by looking at the same element but at different concentrations.

The screening requirement with the free-fall design is only one screening step between 10mm and 180mm, and the capacity per metre sorting width is up to 10 tonnes an hour for zorba and twitch.



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