The magnetic bar mainly consists of an internal magnetic core and an external casing. The magnetic core includes cylindrical magnetic blocks and magnetic guiding plates. It is primarily used for filtering various fine powders and iron-containing impurities in liquids or semi-liquids, as well as other magnetic substances. It is widely used in industries such as chemical engineering, food processing, waste recycling, and carbon black production.

The characteristics of the magnetic bar include effectively removing iron, high pole density, large contact area, and extremely strong magnetic force. Its working environment requires it to have certain corrosion resistance and high temperature resistance. Additionally, during the process of contact with fluids, the internal magnetic energy of the magnetic bar may experience some irreversible loss. When the loss exceeds 30% of the initial strength or when the surface-coated stainless steel tube wears out or breaks, it is time to replace the magnetic bar.

The surface magnetic induction strength of the magnetic bar is directly proportional to the minimum particle size it can attract. In fields such as batteries and pharmaceuticals, even small iron impurities can have a significant impact. Therefore, it is necessary to select high-strength magnetic bars. Additionally, magnetic bars can be customized and processed according to user requirements. For example, different types of magnetic steels can be selected to achieve different magnetic induction strengths.