Product Introduction：Pot magnets, also called cup magnets or mounting magnets, feature a protective steel shell surrounding the permanent magnet. This steel shell is usually cup-shaped, which is why they are properly called "pot" magnets.

Inside the shell, the permanent magnet is either a NdFeB magnet or a SmCo magnet or a ferrite magnet, among others. The main purpose of magnetic assemblies is to enhance magnetic force and protect permanent magnets from potential damage caused by repeated impacts, while offering a variety of application-specific solutions.

Working principle

1. Principle of magnetic force concentration: The steel shell has a high magnetic permeability, which can guide and focus the magnetic lines of the magnet on the pot magnet, so that the magnetic force is concentrated on only one surface, which is stronger than the simple magnet of the same size. When the pot magnet is attached to the ferromagnetic material, a completely closed magnetic circuit is formed, which further enhances its magnetic force.

 2. Principle of electromagnetic induction: In some applications, such as smart rice cookers, the permanent magnet in the pot magnet acts as a conductor. When it is located in the magnetic field generated by the coil, the free electrons inside it move in a directional manner under the action of the magnetic field, forming an electric current. According to Joule's law, the current passing through the conductor will generate heat, thereby realizing the heating function.

Features

1. Small size, strong magnetic force: The steel shell concentrates the magnetic force on one side, so that the pot magnet can generate strong magnetic force in a small size and can absorb heavier ferromagnetic objects.

2. Cost saving: Due to its super strong magnetic force, the use of rare earth magnets can be reduced, thereby reducing the cost of magnets.

3. Good durability: Permanent magnets such as neodymium magnets are usually brittle and easy to break, while steel shells or rubber coverings can protect them, making them more durable and able to withstand a certain degree of impact and friction.

4. Easy to install: Pot magnets can be suitable for many accessories and have a variety of installation options, such as countersunk holes, countersunk holes, threaded holes, eyelets, hooks, internal threads, threaded studs/rods or screw sleeves, etc., which are convenient for users to install and fix according to actual needs.

Applications

1. Household field: This is often used to make magnetic hooks for hanging towels, kitchen utensils, small accessories and other items; it can also be used for door stops to keep the door open or closed; it can also provide a magnetic base for lamps, clocks, machine mirrors, etc., which is convenient for fixing and adjusting the position.

2. Industrial field: It is widely used in automation equipment, such as for clamping, positioning and transferring work-pieces; it is used in tool clamps and fixtures to fix tools and facilitate operation; in addition, it can also be used to salvage magnets for salvaging fallen iron products, etc.

3. Electronic field: For example, in smart rice cookers, it is used to manufacture magnetic switches, magnetic resistance sensors, etc. to monitor and control the cooking process; in LED displays, it is used as a magnetic column to fix display modules, etc.