How strong are flexible rubber ferrite magnets?

In everyday life and office settings, flexible rubber magnetic sheets (also known as soft magnetic sheets) are widely used in areas such as refrigerator magnets, advertising stickers, teaching whiteboards, and curtain fasteners due to their soft, bendable, and easy-to-cut properties. However, many people are concerned about how strong this soft magnet actually is and how much weight it can bear.

Flexible disc rubber ferrite magnetic sheet with 3M adhesive backing

The image below shows the load-bearing capacity data table for circular rubber soft magnets, with 1.5 mm and 2 mm as the reference values.

It should be noted that this data refers to isotropic flexible ferrites, while anisotropic ferrites have stronger load-bearing capacity.

As can be seen from the table, the larger the diameter, the stronger the magnetic force. The thicker the thickness, the stronger the magnetic force. For every 5mm increase in diameter, the load-bearing capacity increases by approximately 20-30 g (depending on thickness).

The surface magnetic strength of flexible rubber ferrite is generally around 200-500 Gauss, while rubber neodymium magnets can reach 1200 Gauss.

Due to the limited load-bearing capacity of flexible rubber magnets, they are only suitable for light-load applications, such as refrigerator magnets, magnetic bookmarks, magnetic photo frames, small magnetic stickers for teaching whiteboards, magnetic cards for advertising display boards, and temporary metal surface labels.

The above is an introduction to the strength of flexible rubber magnets. This type of magnet can be processed or cut into various shapes without damaging its magnetic properties. Customers who wish to purchase in bulk are welcome to contact us for more information.

Introduction to related flexible magnets;

What Are Strong Flexible Magnets?

Four incorrect installations of flexible rubber magnets

Difference between isotropy and anisotropy of rubber magnets