China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Magnetic rods and magnetic bar are 2 common magnetic materials, before the article is rarely introduced, today mainly to introduce some of the differences between their existence, so that you have a deeper understanding.
The first is the shape difference, the magnetic rod is usually solid cylindrical, the size of the diameter and thickness, such as D3x5mm, means the diameter of 3mm, the thickness of 5mm.Magnetic bar usually refer to rectangular block magnets, rectangular, usually the length, width, height of the 3 dimensions, such as F5x2x1mm, represents the length of 5mm, the width of 2mm, the thickness of 1mm.
The picture below shows a manganese-zinc ferrite magnet rod, which is non-magnetic.
And look at the difference in their magnetic field distributions. except for the kind of non-magnetic manganese-zinc and nickel-zinc ferrite magnetic rods, the magnetic rods are mostly magnetized axially and radially, with relatively concentrated magnetic lines of force, suitable for point adsorption. magnetic bar are mostly magnetized in thickness, and can also be magnetized along the length or width direction, with relatively uniform distribution of magnetic lines of force, suitable for surface adsorption.
Again, the difference in magnetic field strength, in the case of a similar volume, the magnetic rod will generally have a higher apparent magnetism than the magnetic bar, this is because the magnetic cylinder (especially axial magnetization), the magnetic force is more concentrated.
Then there are different shapes that lead to their different application scenarios, magnetic rod are mostly used in sensors, magnetic snaps, toys, medical, iron removal, magnetic rod with holes can be used in motor rotors. Magnetic bar magnets are mostly used in mechanical equipment, magnetic household items, magnetic sorting and filtering, motors.
Above is about the magnetic rod and magnetic bar of several major differences between the introduction, at present for the magnetic bar is mainly neodymium magnetic rod, samarium cobalt magnetic rod, manganese-zinc and nickel-zinc ferrite magnetic rod (no magnetic). Magnetic bar (magnetic blocks) are mainly ferrite strips, neodymium strips, samarium cobalt strips, manganese-zinc ferrite blocks.
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