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Large round magnet with holes is a kind of magnet with a large diameter and with holes, which can be used in many places, today this article will introduce to the types of round magnets with holes, including the type of shape, the type of material, as well as how to choose, what are the uses.
Comparison of commonly used materials and performance of large round magnets with holes
NdFeB material: the strongest magnetic force, suitable for high-performance applications, such as motors, sensors, industrial adsorption equipment, but the high temperature resistance and corrosion resistance is poor, the need for surface coating anti-oxidation.
Samarium Cobalt: the magnetic force is slightly inferior to NdFeB, but the high temperature resistance is good, can be used for higher than 250 degrees Celsius above environment, suitable for aerospace, military and high temperature environment.
Ferrite material: weaker magnetic force, but low cost, corrosion resistance, suitable for speakers, micro-motors and other low-cost applications.
Neodymium ring magnet with large inner hole, also known as neodymium magnetic ring
The above 3 types are the most mainstream magnet application materials in the current market. Depending on the application requirements, the magnet can be customized in terms of outer diameter size, hole size, hole location, and thickness.
The shape types of large circular magnets with holes can be divided into center holes, offset holes (holes not in the middle), multiple holes, and side holes (with certain thickness requirements, too thin is not acceptable) according to the design of the holes
Large Diameter Round Magnet with Countersunk Hole in Center 100mm
The holes can be straight or screw holes as in the picture above.
In terms of applications, perforated large circular magnets are mainly used in heavy industry, mechanical equipment, large speakers, medical equipment, rehabilitation equipment, magnetic levitation and other products.
As for how to choose, let me say a few points. It is necessary to select the appropriate magnet material and performance level according to the application scenario, and choose the appropriate hole position and size according to the installation method. Ferrite is suitable for scenarios with limited budget and low magnetic requirements, neodymium magnets are suitable for high-performance needs, and samarium cobalt is suitable for use in high-temperature scenarios.
Our company is a permanent magnet manufacturer, and we hope the above information can help you better understand perforated large circular magnets. If your project requires perforated large circular magnets, please feel free to contact us for a quotation and customized sample testing.
Sample case (also our company website)
This magnet ring is made of high-performance rare earth neodymium as the base material, with an outer diameter of 30 millimeters and a thickness of 6 mm, in a ring design. In terms of surface treatment, a nickel layer is first used as a base to enhance corrosion resistance and coating adhesion....
This 1/2-inch neodymium magnet is circular in shape and features a phosphated coating, offering excellent corrosion resistance, making it particularly suitable for applications in humid or harsh environments. It measures 12.5 mm x 3 mm and provides strong magnetic force...
This magnet is a ring-shaped neodymium magnet with radial 10 poles. The material is bonded NdFeB, the inner circle is magnetized with 10 poles, and the strong magnetic surface is inner circle. The size of the magnet is 32.6mm in outer diameter, 28.6mm in inner diameter, and 6mm in height....
This product is a square ceramic magnet, made of sintered ferrite anisotropy, with low remanence, low recovery magnetic permeability, and strong anti-demagnetization ability. 12mm, suitable for fitness equipment, massager, magnetic control machine, air pump, if you are interested in this product, please contact....
You are now viewing this is a super small (tiny) size ferrite block magnet sample, high performance grade Y30, magnet length 2.45mm, width and thickness are 1mm, magnetization direction along the length....
This product is a variety of isotropic ferrite (Y10) rotor magnets ring, which are processed and manufactured by the Chinese permanent magnet supplier Courage Magnet. The inner aperture size of the magnet is 5.4mm, and the surface is smooth and free of defects. It can be magnetized according to the number of magnetic poles required by customers, such as radial 2, 4, 6, and 8 poles...
This product is a float switch magnet, a float ring magnet, and the material is ferrite. Drinking system, etc.), industrial equipment (such as: air oil compressor, air cooler, drain, lubricating oil system), gardening equipment, medical equipment, beauty salon equipment, aquaculture and industrial water purification, sewage treatment system, automatic door control system, Automotive and other industries....
This product is a high-performance arc-shaped magnet. The material is the strongest magnetic material NdFeB. It has the characteristics of small size, light weight and high torque. It is especially suitable for high-end servo motors and brushless motors. It is widely used in industrial motors. , so that the brushless motor has the advantages of light weight, high efficiency, low noise, small speed error, etc....