Multi-sensor platforms combine two or more detection technologies in the same machine — typically color sensors, 3D (laser), induction, NIR, XRT, or XRF. The combination enables more precise sorting decisions than any individual sensor, increasing both purity and recovery rate.
Operating logic
Material is analyzed simultaneously by multiple sensors. The software cross-references data for each particle and decides whether to eject based on combined criteria. Example: a color sensor identifies appearance, a 3D sensor measures volume, an induction sensor confirms metal presence — the decision considers all three inputs.
When it makes sense
Justified when a single sensor cannot achieve the required purity. Typical situations: separating stainless steel from aluminum in mixed fractions, removing specific contaminants from RDF, classifying WEEE into valuable fractions.
The investment is significantly higher than a single-sensor sorter. Viability depends on the added value from additional purity and the volume processed.
In many cases, a sequence of single-sensor machines achieves results equivalent to multi-sensor with lower investment. The best configuration is defined through analysis of actual operations.