Understanding The Basic Properties Of Block Magnets

by Robert P.

Block magnets, also known as bar magnets, are rectangular or cube-shaped magnets. They are also categorized under permanent magnets because they are made of ferromagnetic substances like steel and iron. A lot of manufacturers also make block magnets from neodymium. Neodymium block magnets are pretty impressive because of their powerful magnetization elements. They also feature an incredible resistance to demagnetization. Block magnets made from neodymium are also known for their affordability and high pull strength. For these reasons, they are used in various objects (commercial, household, technical, and consumer objects). This post covers the block magnet properties and other important things you should know about these magnets.

Properties of block magnets

The properties of block magnets are not very far from those of permanent magnets. The following are some defining properties of these magnets;

They have a north pole on one end and a south pole on the other. This means, if you broke the block magnet in the middle, the two pieces would still have a north and south pole. This is the case even if you break the piece of magnet into a dozen pieces.

The magnetic force of block magnets is usually strongest at the poles. This means that the pull may be stronger at the poles than at the middle of the block.

If you were to suspend a block or bar magnet freely in the air using a thread, it would not rest or stop moving until its poles are aligned in the north-south magnetic position of the earth. Numerous scientific research projects have proven this fact to be true. This property is why compasses, especially those used by Marines, use magnets to determine direction.

It has also been discovered that when ac couple or more block magnets are positioned close to each other, their opposite poles will attract as similar poles fend off (repel) each other. This means that the north poles will attract the south poles and reject their fellow north poles.

It is also worth mentioning that block magnets tend to attract all ferromagnetic metals like cobalt and iron, to name a few.

Take note;

It is worth noting that the properties of block magnets may differ depending on the materials from which they are made. For instance, neodymium block magnets feature added properties like;

  • High magnetic strength
  • Impeccable coercive force
  • Impressive operation
  • Incredible pricing
  • Resistance to demagnetization

Applications of block magnets

Block magnets are commonly applied in the following industries;

  • The sound and audio industry
  • The furniture-making industry
  • The medical sector
  • Manufacturing
  • The electrical industry

These magnets are also commonly used to make the following products;

  • Wind power generators
  • Motors for elevators, servos, and compressors
  • Medical equipment like pacemakers
  • Communication, audio, and video equipment
  • Vehicle components
  • Hydraulic generators


DailyMag is one of the best manufacturers of neodymium block magnets in China and beyond. The company manufactures the highest quality of block magnets made with precision, caution, and expertise. The company uses professional manufacturing techniques and hires the best employees for the task. Other than block magnets, DailyaMag manufactures several other forms of neodymium magnets.

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