Detailed description of the DND-AC overband magnet
Back to the main DND-AC separators' page
Gauss charts: Measuring the Magnetic Force of the DND-AC Separator
We carefully test each separator and measure its performance in realistic conditions. The magnetic induction is not measured at the core (the values are artificially higher here), but at a distance of 0 - 400 mm from the conveyor belt, in 50 mm steps. This gives us relevant data about the actual magnet range.
We supply a protocol with specific measured values for each device.
Are you curious about the magnetic induction values your self-cleaning magnetic board can reach? See all the test protocols by models and sizes.
Capturing of standards (in the size and weight) - DND-AC Overband Magnet
Measured induction is important, but in practice, customers are often more interested in what metal impurities the separator can actually capture. Therefore, we tested 13 common ferromagnetic objects (e.g., nuts, nails, wires, steel balls) and determined the distance from which each DND-AC overband magnet model is able to pick them up.
Want to know how your DND-AC Overband Magnet will handle specific contaminants? See the benchmark capture test results for all models.
Recommendation: Connection of an overband magnet and a magnetic pulley
To achieve the highest possible separation degree, we recommend - especially in the case of a thicker material layer on the conveyor - combining an overband magnet suspended above the belt with a magnetic cylinder which is capable of capturing ferromagnetic particles from the lower material layers.