12x9x4mm Rectangular Block Magnets
12x9x4mm Bar Magnet for Fridge Magnet
Super Neodymium Magnet Made of neodymium, the most powerful magnet material in the world. Super magnets are great for projects that require extreme strength in a small size. Magnets are brittle and can chip if dropped. Warning: Not for children.
China Manufacturer 12x9x4mm Bar Magnet for Fridge Magnet, Super High Grade Rare Earth Permanent Ndfeb Magnet.
|Place of origin||China|
|Tolerance||±0.03mm for diamater /thickness, ±0.1mm for width/ length|
|Direction of magnetisation||axial (parallel to height)|
|Coating||Nickel-plated (Ni-Cu-Ni),can be Customised Gold, Silver, Copper, Epoxy, Chrome, etc)|
|Grade||Customized N35 N38 N40 N42 N45 N48 N50 N52 ……|
|Max. Working Temperature||Grade||Max. Operating Temperatures|
|33M- 48M||100°C (212°F)|
Coating for your convenience:
Neodymium magnet are composed mainly of neodymium, iron and boron.if that are not plated, the iron in the material will oxidize very easily, particularly id exposed to moisture. Even normal humidity will rust any iron anywhere over time.
Nickel is the most common choice, as it is durable and cost-effective.Our magnets are costed with a triple plating of nickle-copper-nickle.This created a shiny sliver finish and provides dependable resistance to corrosion in most applications. It is important to remember that no neodymium magnet,even with a plastic or glod coating, is completely waterproof.
Configure high-end detection equipment The development of proprietary cutting technology, advanced precision machinetight production process control allowed Jintong to remain at the forefront of neodymium magnet manufacturers.
1.Average force meter( Milling particle size inspection)
2.Magnetization characteristic automatic measuring instrument( Issuedemagnetization curve)
3.Magnetic testing equipment for measurements of Field Density and Field Strength
4.Hysteresisgraph for magnetic characteristic measuremen ect