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https://www.weizhongmagnetics.com/products/pot-magnet/

Weizhong Magnetics Co., Ltd is a China-based manufacturer of magnet assemblies and a foremost custom magnet manufacturer, supplying the most comprehensive range of best custom magnet assembly locally and internationally.

How Much do You Know about the Pot Magnet?
1. Introduction of the pot magnet
As for the word "pot magnet", many people may hear about it for the first time. Actually, the pot magnet is a kind of magnet which is wrapped in a steel shell and shaped like a pot, so it is called the pot magnet (or the bowl magnet), or the magnetic component. Through magnetic circuit design, its tension will be increased by the steel shell.

The distribution of magnetic field lines of simple magnet and basin magnet can be clearly seen on the simulation software. The magnetic lines of force of a simple magnet are distributed freely in the air. The permeability of the shell is much higher than that of the air, so the lines of force in the steel shell are easier to pass through than those in the air. The magnetic circuit guides the magnetic field lines to focus on the working surface. When touching the working face, the lines of force of a basin magnet are much more easily focused than those of a simple magnet, so that the tensile force is many times stronger.

2. Type of the pot magnet
The pot magnet (magnetic fixator) is mainly divided into these types: Counterbore pot magnet, through-hole pot magnet, internal thread pot magnet, and pot magnet with the threaded hole in the centre.

3. Wide applications of the pot magnet
The pot magnets are widely used in doors, automotive ceiling lights, cabinets and door suction, ceiling fasteners, signage and banners, compact parts, clamps and fixtures, lighting, display fixtures, industrial fasteners, etc. It is the most down-to-earth type of magnet that can be basically seen in our daily life. NdFeB pot magnet is accessible to everyone, for it is inside the door suction in your house.

The pot magnet has the characteristics of small size and large suction, which can be maximized when adsorbed vertically on the surface of the material. Its suction is determined not only by the internal magnet and the structure of external iron shell, but also by the material, thickness, flatness and friction of the adsorptive surface.