Neodymium( NdFeB )magnets are the strongest type of rare earth magnet commercially available and are manufactured in a wide range of shapes, sizes and grades.Â
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2. Neodymium Magnet features
| Material | Sintered Neodymium-Iron-Boron (NdFeB) | |
| Size | Various kinds or according to customers' request | |
| Shape | Disc/ Customzsed  (block,disc,Cylinder, Bar, Ring, Countersunk, Segment,hook,cup, Trapezoid, Irregular shapes ,etc) |
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| Performance | N52/Customised (N33 N35 N38 N40 N42 N45 N48 N50 N52 …...) | |
| Coating | Ni-Cu-Ni, Nickel / Customised (Zn,Ni-Cu-Ni,Ni,Gold, Silver, Copper, Epoxy, Chrome, etc) | |
| Size tolerance | ±0.05mm for diamater/thickness, ±0.1mm for width/length | |
| Magnetization | Thickness Magnetized, Axially Magnetized, Diametrally Magnetized, Multi-poles magnetized, Radial Magnetized. (Customzied specific requirements magnetized) | |
| Max. Working Temperature |
Grade | Max. Operating Temperatures |
| N35-N52 | 80°C (176°F) | |
| 33M- 48M | 100°C (212°F) | |
| 33H-48H | 120°C (248°F) | |
| 30SH-45SH | 150°C (302°F) | |
| 30UH-40UH | 180°C (356°F) | |
| 28EH-38EH | 200°C (392°F) | |
| 28AH-35AH | 220°C (428°F) | |
| Applications | Neodymium(NdFeB) Magnet are widely used in many fields, such as motors, sensors, microphones, wind turbines, wind generators,  printer, switchboard,packing box , loudspeakers, magnetic separation, magnetic hooks, magnetic holder, magnetic chuck, ect. |
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3.Neodymium Magnet Surface coatings
| Surface | Coating | Thickness (Microns) |
Color | Resistance |
| Passivation |  | 0-1 | Silver Grey | Temporary Protection |
| Nickel | Ni+Ni | 10-20 | Bright Silver | Excellent against Humidity |
| Ni+Cu+Ni | ||||
| Zinc | Zn | 8-20 | Bright Blue | Good Against Salt Spray |
| C-Zn | Shinny Color | Excellent Against Salt Spray | ||
| Tin | Ni+Cu+Sn | 15-20 | Silver | Superior Against Humidity |
| Gold | Ni+Cu+Au | 10-20 | Gold | Superior Against Humidity |
| Copper | Ni+Cu | 10-20 | Gold | Temporary Protection |
| Epoxy | Epoxy | 15-25 | Black, Red, Grey | Excellent Against Humidity & Salt Spray |
| Ni+Cu+Epoxy | ||||
| Zn+Epoxy | ||||
| Chemical | Ni | 10-20 | Silver Grey | Excellent Against Humidity |
| Parylene | Parylene | 5-20 | Grey | Excellent Against Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi and Bacteria. |
4.Neodymium Magnet package
a:32X24X26CM standard export package
b:G.W of each carton is no more than 13KG
5.Buyer's guide
In order to get accurate quotation at first time, pls let me know below infor
| Shape | Block/Rectangle/Square | Disc/Round/Cylinder | Ring/Countersunk |
| Dimension | L (?) x W(? ) xT(?) | D(?) x T(?) | OD(?) x ID(?) x T(?) |
| For other shapes,please tell more in details or drawing would be much appreciated. | |||
| Coating | Zn,Nickel,Ni-Cu-Ni,Epoxy,Au,Silver or other ? | ||
| Working Temperature | Normal or High temperature ? | ||
Door panel: door panel is made of stainless steel 304 with no frame. Core materials are paper honeycomb, aluminum honeycomb, PU, EPS and etc. The installation sites of door lock, door closer and hinge are reinforced with square tubes of more than1.5mmthickness which are compression moulded by special technology.
Door frame: it is made of completely stainless steel 304. The connection types with wallboards are double-clip type and aluminum connection. The former is applied mostly to machine made wallboard and the latter hand made wallboard. The accessories are double window and lift type sweeping bar. The lock can be famous door lock or the owners can select lock brands themselves.
Specification: common sizes 800X2100, 900X2100, 1500X2100 or1800X2100, can customize to customers` requirements, the materials can be selected according to customers` requirements such as306Lor other special materials.
Features: the stainless steel 304 door we produced are of elegant appearance, sturdy and durable, acid and rotting resistance and thermal insulation. It is the first choice for high-end projects at home and engineering concerning foreign affairs that requires for anticorrosion and high quality such as electronics factory and food factory
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