Have you ever seen such a tiny neodymium iron boron disc magnet? It measures just 0.5mm in diameter and 0.4mm in thickness.
Recently, we successfully completed sample production of a 0.5mm x 0.4mm neodymium iron boron disc magnet commissioned by a South Korean client. This specification represents one of the smallest sizes of sintered neodymium iron boron magnets that can currently be reliably manufactured.
The image below shows a neodymium disc magnet with a diameter of 0.5mm and a thickness of 0.4mm.

Miniature Round Rare Earth Magnet 0.5x0.4mm, Don't be fooled by how small they look—there are 600 of them.

In terms of applications, these miniature magnets are primarily used in precision electronics, precision sensors, wearable devices, micro-positioning structures, and similar fields.
With the continuous development of microelectronics and precision manufacturing, the application scenarios of such micro-sized magnets are still expanding. If your company needs ultra-small, ultra-thin rare earth strong magnets, please contact our company.
Circular magnets of the same thickness
This is a radial 4-pole ring (Hollow cylinder) magnet, the material is bonded NdFeB, with high magnetic performance, the size is 16mm outer diameter, inner hole 5mm, height 20mm, surface gray epoxy treatment, suitable for water pump motor...
This product is a 4-pole ring magnet, injection-molded ferrite material, the sample size is 22mm outer diameter, 7mm inner diameter, 4mm thickness, 2 N poles and 2 S poles, mainly used for push rod motors, magnetic induction devices, encoders, etc.,...
This is a radial 2 pole circular magnet designed specifically for magnetic encoder chips. It is made of sintered neodymium-iron-boron with N35 grade performance and is suitable for standard environments....
This product is a multi pole magnetic ring with an inner diameter of 1.5mm. The material is injection molded ferrite. It adopts axial multi pole magnetization and is mainly used for DC motors. If you have a sample of similar injection molded magnetic products, please contact us for quotation....
This is a very small size rectangular block magnet with galvanized surface, 3mm length, 1.5mm width and height, with very fine tolerance, magnetized by lengthwise direction, mainly used in precision electronics, instrumentation, please contact us if you need to buy....
Need 20-pole ring magnets? Welcome to contact NST. Our company has many stock sizes. The sintered ferrite magnetic ring uploaded today has an outer diameter of 30.8mm, a hole of 21.3mm, and a thickness of 5mm....
This product is a 1mm 6-sided magnet, made of rare earth neodymium magnet, N52 grade, the surface coating is gold, very beautiful, the width is 6mmmm, the thickness is 1mm, and the thickness is magnetized. If you are interested in this small-sized polygonal magnet You can contact the courage magnet manufacturer to quote and customize for you....
You need to buy small magnets with holes. Welcome to the Courage Magnet Factory in China. We can customize small magnets with through holes (straight holes) or countersunk holes for you. You can choose NdFeB or other weak materials. The magnetic performance is generally above 3000 Gauss. If you need to know its price, please send us an inquiry, thank you!...