How to tell the polarities of China magnet apart?

Without certain device, it is hard to differentiate the N pole and S pole of magnet. For China manufacturers, gauss meter or magnetic pole identifier could be used to identify the polarities by sliding on the surface of the magnet. Thus, the polarity of magnet can be easily found.

However, what if the magnet is not magnetized? Here are two solutions.
Firstly, we could judge by the shape. For most disc magnets, the larger side would be the surface of the magnetic pole. We could tell the magnetized side by naked eye. What if magnet is a cube whose lengths are all the same? In this case, a China magnetized magnet marked N and S pole would come into play. As we know, opposite poles attract each other. We could use it to attract the cube magnet. If one side of the cube magnet is attracted, this side and its opposite side would be the surfaces of the magnetic pole.

Some products have specific requirement for the magnetization direction. Or the product would be malfunction. For customized China magnets, the manufacturer must be clear about its magnetization direction.

Tags: China magnet, magnet manufacturer