The magnetic separator fails to remove the reinforcement due to incorrectly selected magnet settings, contamination of the magnet’s surface, an excessively fast flow of raw material, design faults and the low magnetic properties of the reinforcement material.
The magnetic separator does not remove the reinforcement for several key reasons relating to its design features, operating conditions and the properties of the reinforcement itself; these issues can be easily resolved with timely diagnosis.
The magnetic elements of the separator have limited holding power; if their strength is not correctly matched to the size and type of reinforcement, they are unable to retain heavy or large metal parts, allowing them to pass further along the production line.
Over time, fine metal shavings, dust and other solid particles accumulate on the magnet’s working surface, forming a protective layer that reduces the effectiveness of the magnetic field and prevents the separator from capturing the reinforcement bars.
If the flow of raw materials containing metal fittings moves along the conveyor too quickly, contact with the magnetic zone is too brief, and the separator simply does not have enough time to attract and retain the metal part.
Wear and tear on individual parts, misalignment of the magnetic assemblies and insulation failure result in the magnetic field being distributed unevenly, creating dead zones through which the reinforcement passes unimpeded.
Certain types of fittings made from low-magnetic alloys show virtually no response to the separator’s standard magnetic field; consequently, the equipment is unable to detect and remove such components from the general flow of raw materials.
