# Analysis of magnetic force models： Comparison of magnetic force strength of N35, N38 and N40 magnet models.

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Types of commonly used magnets: There are three kinds of magnets commonly used in Rubik’s Cube: cylindrical magnets, circular magnets and square magnets.

Square magnet: Square magnet is seldom used in Rubik’s Cube, and it is common in some renovation projects. The model of magnet is usually expressed as length, width and height, such as 432. It means a magnet with a length of 4mm, a width of 3mm and a height of 2 mm..

Ring magnet: the magnet model is expressed as D outer diameter and inner diameter thickness/height, for example, D1082. It means a magnet with an outer diameter of 10mm, an inner diameter of 8mm and a thickness or height of 2mm.

Cylindrical magnet: Cylindrical magnet is a common type of magnet at present. It is widely used in magnetization treatment. The type of magnet is expressed as diameter, thickness/height, such as 41.5. It means a magnet with a diameter of 4mm and a height of 1.5 mm..

It should be noted that the magnet configuration will be affected by factors such as plastic thickness and anti-oil groove design. Therefore, when selecting the magnet model and configuration, it needs to be adjusted according to the specific situation.

Magnetic force model: Common magnetic force models include N35, N38, N40, etc., where the number after N indicates the strength of magnetic force, and the larger the number, the stronger the magnetic force. The common magnetic model is N35, which is also the easiest to obtain.

Magnet configuration scheme: the choice of magnet configuration scheme will be influenced by factors such as plastic thickness and anti-oil groove design. Some common magnet configurations are listed in the table, based on N35 model. However, it should be noted that the thickness of different plastics is different, which will affect the magnetic force, so it needs to be adjusted according to the specific situation.

When choosing a magnet, you need to consider the factors of magnetic force model and volume model. For the same type of magnets, such as 41.5 and 41 cylindrical magnets, the former has greater magnetic force because of its higher height. If we compare the 3*2 magnet with it, we only need to apply the volume formula of cylindrical magnet to determine which magnetic force is greater.

If you have further consultation on the selection, use or other related issues of magnets, please feel free to contact our magnet manufacturer. We have a professional team of engineers who can provide you with professional answers and consulting services. In addition, if you are interested in the latest magnet quotation, quotation or retail price, please feel free to contact us, and we will provide you with real-time quotation and related information.

Thank you for your attention to our magnet manufacturers, and we look forward to providing you with satisfactory answers and services!