How Far Can A Neodymium Iron Boron Powerful Magnet Absorb At Most?

     Neodymium iron boron strong magnets are widely used in various fields due to their unique physical properties and chemical composition. The specific manifestation of this type of magnet is that its magnetic strength is several times or even tens of times that of other magnets, and the loss rate of magnetism is relatively slow, which can persistently and stably exert its magnetic force. Due to its high strength, small size, and lightweight, it is an ideal material for various process fields.
    In some fields that rely on magnetic force to work, such as Maglev, medical devices, electronic products, wind turbines, etc., Nd-Fe-B powerful magnets are required to work, and its outstanding advantages and wide application of performance have been recognized by the industry. This type of magnet has many advantages, such as high temperature stability, corrosion resistance, high mechanical strength, ease of processing, and reduced energy consumption. It is widely used in future technological fields.
    So, is there a definition for the attraction of a strong magnet, and how can we detect the attraction of a strong magnet?
    In fact, this question cannot provide an accurate answer at all. The attraction of a magnet is roughly proportional to the square of the distance. Relatively speaking, the larger the surface area of the magnet, the more magnetic induction lines it has in space, and the longer the distance of the attraction.
    Guess what you're paying attention to: What is the maximum distance a magnet can lift things up
    This is related to the magnetic field strength of the magnet, as well as the mass of the object being attracted, and there is no specific fixed value.
    Determine how far to attract the iron needle based on the magnetic force of the magnet. For neodymium iron boron permanent magnets, a 40 * 15 * 2mm long magnet is about 4mm away from the limit distance set for iron absorption.