China Neodymium And Ferrite Magnets Manufacturer & Supplier 
In ultra-miniature magnetic applications, many customers ask: Can magnets with a diameter as small as 0.5mm be manufactured? From a processing perspective, such magnets approach the limits of sintered neodymium iron boron technology. While standard magnet manufacturers struggle to achieve consistent production, specialized manufacturers with experience in micro-magnets and dedicated tooling can certainly accomplish this.
Recently, we have successfully completed a representative specification: φ0.5 x 0.4mm ultra-small, ultra-thin neodymium iron boron circular magnets. This magnet achieves extreme levels in both diameter and thickness. The image below shows a quantity of over 600 such magnets.
0.5mm Ultra-Small Diameter Rare Earth Round Magnet
0.5 × 0.4mm miniature magnets are particularly suited for product applications with extremely limited space, such as micro-sensors, precision electronic structural components, and magnetic induction positioning structures. Compared to larger magnets, they enable magnetic functionality without increasing structural volume—an irreplaceable advantage in many high-end, miniaturized product designs.
If you're seeking ultra-compact magnet solutions, this φ0.5 × 0.4mm neodymium magnet is worth considering. However, due to its challenging manufacturing process, purchase quantities typically require a minimum order. For pricing or samples, please contact us.
Relevant tiny circular magnets;