China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Pot magnets, also called cup magnets, belong to a kind of magnetic components, the shape of its magnet part can be round magnets, square magnets, rectangular magnets, and today we mainly talk about pot magnets with countersunk holes, that is, these types of magnets are machined with countersunk holes (screw holes)
Pot magnet with countersunk hole definition;
Pot magnet with countersunk holes is a magnetic assembly further designed on the basis of a pot magnet with countersunk holes in the center for easy fixing by screws or bolts. This magnet combines high magnetic adsorption with easy mechanical mounting and is particularly suitable for locations where the magnet needs to be secured to the surface of an object.
Typical Pot Magnet with Countersunk Hole - Round Shape
Main Specifications and pull:
Size: all can be customized, round shape commonly used diameter 16mm, 20mm, 25mm, 30mm, 32mm, 36mm ......
Adsorption force: depending on the size and material of the magnet, the adsorption force usually ranges from a few kilograms to tens of kilograms. Smaller sizes of countersunk hole pot magnets are suitable for lightweight fixtures, while larger sizes can be used for heavy-duty applications.
Countersunk hole diameter: The diameter of the countersunk hole usually matches the standard screw size, such as M3, M4, M5, etc., so that you can choose the right type of screw for fixing.
Pot magnet shape with countersunk holes;
Round with sink hole pot magnet, square with sunken hole pot magnet, rectangular with sunken hole pot magnet, these 3 kinds are more common, in which the magnet surface adsorption is the strongest, the metal protective surface almost no suction.
Advantages of pot magnet with countersunk hole;
Easy installation: Users only need to fasten the pot magnet with countersunk holes to the target surface by screws.
Strong adsorption: due to the high magnetic properties of NdFeB magnets and the shell design effectively concentrates the magnetic field, the pot magnet's adsorption force is much stronger than ordinary magnets.
Unbreakable: The steel shell can protect the magnet well and is more resistant to impact.
Reusable: It can be utilized many times by simple screw removal or replacement.
Application scenarios of pot magnet with sinkhole
In the machinery industry, pot magnets with countersunk holes are often used to hold parts, tools or for temporary fixing. For example, when mounting mechanical sensors or support components, pot magnets can be quickly and securely attached and screwed to metal surfaces.
Countersunk pot magnets also have a place in home decor and tool management. Screwed to a wall or tool board, they can be used to hang tools, keys, and other items in a way that is both aesthetically pleasing and practical.
In exhibition displays, countersunk pot magnets are often used to secure display items or build temporary structures. Through its strong adsorption force and easy installation, it makes the erection and dismantling process more efficient.
By assembling stainless steel hanging rings, sinkhole pot magnets can also be used for water salvage.
The price of sunken hole pot magnets is affected by size, magnet material, and finish. Generally, NdFeB sunken hole pot magnets are more expensive but offer great adsorption; ferrite sunken hole pot magnets are more affordable.
Cheap pot magnet recommendations;
Sample of a portion of a sinkhole pot magnet;
Single-sided square neodymium pot magnet 20x20x5mm