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Sorting non-ferrous metals and creating top qualities – right down to a 5 mm grain size

The new Steinert Chutec chute sorter completes the company’s portfolio of sensor-based sorting equipment for non-ferrous metals and allows heavy metals as small as 5 mm to be sorted. This makes Steinert the only provider to offer customers both eddy current separators and high-resolution X-ray sorters for the highest possible level of recovery and cleaning from one source.

The recovery of non-ferrous metals using the Steinert EddyC and sorting light and heavy metals into small grains using the Steinert XSS-T is nothing new. But what is new is the option of using X-ray fluorescence (XRF) to economically separate ultra-pure products down to a fine grain of 5 mm and recover zinc, brass and copper in their purest form at this grain size. After separation, the quality is pure enough to smelt.

Developed for the operators of ASR and IBA plants

The operators of plants for sorting heavy non-ferrous metals (Zebra) from incineration bottom ash (IBA) or automotive shredder residues (ASR) will welcome this innovation. The objective of sorting remains the same, namely to separate and upgrade non-ferrous heavy metals into metal types such as aluminium, copper, zinc, brass or stainless steel. But now the fine-grain fraction can be processed too.

X-ray fluorescence delivers purity

In metal analysis, XRF analysis is a standard method for determining the elemental composition. With Steinert Chutec, XRF is also used as a technology for sorting metals. The chute sorting system combines the signals from the XRF unit with 3D information in order to achieve a precise level of classification and separation. For larger and heterogeneous material, the option of sorting with the Steinert KSS | XF belt-based machine has proven its reliability in practice.

The sorting produces concentrates of different types of metal, which display a quality suitable for immediate use in reprocessing smelting plants. Refinement at this level makes an important contribution to returning metals to the raw material cycle.

With Steinert, customers are able to procure sorting solutions, including non-ferrous metal separators and X-ray sorting equipment, from one source. Business owners greatly appreciate minimising coordination work to free up more time for developing metal recycling concepts.

‘My production staff have complete confidence in Steinert. Plant is easy to operate and all the technical components are easy to understand and simple to use,’ is how one opinion leader in the recycling industry puts it.

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