Electromagnetic induction sorters detect and separate metallic particles — both ferrous and non-ferrous — regardless of size, shape, or position in the material flow. Unlike ECS (which relies on magnetic repulsion), the induction sensor individually identifies each conductive particle and triggers compressed air valves to eject it.
Advantage over ECS
Recovers small metallic particles (below 10 mm) and those with unfavorable geometry (wires, blades, flat particles) that conventional ECS cannot efficiently eject. Ideal for fine particle sizes where eddy current separation reaches its physical limits.
Typical applications
Fine metal recovery from incineration bottom ash
Purification of cable granulate
Fine metal separation in WEEE recycling
Removal of metallic contaminants from mineral fractions
Practical considerations
Efficiency depends on particle size, conveyor speed, layer thickness, and particle conductivity. Pre-screening into narrow size fractions is critical for results.
The decision between ECS, induction, or a combination of both is made based on testing with actual material.