- Model NO.: BWND
- Shape: Ring
- Grade: N38
- Composite: Neodymium Magnet
- Size: According to Customer′s Request
- Direction of Magnetization: Through The Thickness or Diameter
- Port: Ningbo
- Specification: CE, ROSH
- HS Code: 85051110
- Application: Speaker Magnet, Industrial Magnet, Motor Magnet
- Coating: Nickel
- Product Name: Permanent Ring Magnet with Round Hole
- Type: Permanent
- Tolerance: +/-0.1mm
- Delivery Detail: 10-25days
- Trademark: Bestway
- Origin: Ningbo, China
Product Description:
| Product name: | Permanent Ring Magnet With Round Hole |
| Shape: | disc( Disc, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes are available, Customized shapes for Sintered NdFeB  Magnet are also available) |
| Direction of magnetisation: | Through the thickness or through the diameter |
| Type of coating:  | Nickel, Ni-Cu-Ni, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and so on.  |
| Grade: | N35-N52; N35M-N50M; N35H-N48H; N35SH-N45SH;N30UH-N40UH; N30EH-N38EH |
| Tolerance in size: | +/-0.1 mm |
Bonded NdFeB magnets are manufactured by binding rapid-quenching NdFeB powder. The powder is mixed with resin to form a magnet by compression molding with epoxy or infection molding with nylon. The latter technique is particular effective in large volume production, though the magnetic value of products is lower than those made with compression molding because of their relatively lower density. Various shapes of high dimensional accuracy can be produced without further processing. Surface is treated by epoxy coating or nickel-plating to prevent corrosion.
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Stainless Steel Flat Steel,Steel Bar,Steel Flat
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