Cylinder Magnets with Holes

Cylinder magnets with holes are a very common magnet shape, widely used in areas that require fixing, mounting or combining, due to different users want to know different knowledge points, the following will be a comprehensive introduction, including materials, magnetization, typical applications, prices, and customer frequently asked questions.

Cylinder magnets with holes Material Type

Currently on the market the mainstream material is neodymium and ferrite and samarium cobalt these 3 kinds, can be on its surface, side or any position for processing screw holes or straight holes, the main difference between them is that the neodymium material is the strongest magnetism, suitable for occasions that require high magnetic density. Ferrite is low in price. Samarium cobalt has good magnetic stability in high temperature environment over 200℃.

Neodymium Cylindrical Magnets with Countersunk Holes

Typical applications for cylindrical magnets with holes;

Through the design with holes, the magnet can be directly connected with screws and nuts to facilitate the assembly with other devices, which is widely used in transmission systems, motors, magnetic sensors, and so on.

In some electronic devices, cylindrical magnets with holes are commonly used to fix components or as magnetic connecting devices.

Perforated magnets can be used in non-contact transmissions to transmit torque through a magnetic field, and are suitable for industrial scenarios that require sealing or explosion-proofing (e.g. pumps, mixing equipment).

In salvage equipment, perforated cylindrical magnets can be used to hold metal objects underwater or in confined spaces by passing a rope through the center hole.

Magnetization of cylindrical magnets with holes

There are mainly two types of magnetization: radial magnetization (strong magnetic field on the side of the magnet) and axial magnetization. Some customers may require radial multipole magnetization, which means more than two magnetic poles.

Price of Cylinder Magnets with Holes

It is related to the material, grade, size, tolerance and coating of the magnet, processing difficulty, purchase quantity, it is useless to approximate the price, you need to provide more detailed information.

A few questions often asked by customers

How is the accuracy of the hole diameter of the perforated cylindrical magnets ensured?

The aperture of perforated magnets is usually achieved by precision machining technology to ensure standardization and consistency of the aperture. If there are strict requirements on the hole diameter, customers can provide specific dimensions and we will customize the processing according to the requirements.

What is the maximum tensile force that a cylindrical magnet with hole can withstand?

The amount of pulling force depends on the material, size and surface coating of the magnet. Usually, NdFeB magnets have higher tensile force, while ferrite magnets have lower tensile force. Customers can choose the right magnet specification according to the actual demand.

What is the temperature range that perforated magnets can withstand?

Different materials of magnets have different temperature resistance. NdFeB material is best around 80-180℃.

Can you customize special shapes or sizes of perforated magnets?

This is no problem, including the position, size and depth of the hole.

Is the magnet with hole suitable for outdoor environment?

Depends on the material, like ferrite, samarium cobalt and so on have good corrosion resistance no problem, perforated magnet can also be adapted to outdoor environment if coated with anti-corrosion coating.

Hope this article can help you better understand cylinder magnets with holes, if you need customized Cylindrical Magnets with Holes, please feel free to send inquiry to us.

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