Rare Earth Permanent Neodymium Ring Magnets Used In Speaker / Moptor
R20X10X6MM rare earth and permanent Neodymium Ring Magnets can be used in car speaker and motor
1 Description & Specification:
| Sintered NdFeB magnet | Strong permanent magnet with magnetic properties |
| Grades | N33, N35, N38, N40, N42, N45, N48, N50, N52, (M, H, SH, EH, UH AH) |
| Coatings | Nickel, Ni-Cu-Ni, Zinc, white-blue Zn, Black epoxy resin, Gold |
| Sizes | customized |
| Shapes | Disc, cylinder, sphere, block, ring, tile, arc, and other irregular shapes |
| Tolerance | +/-0.05mm unless specified. |
| Magnetized direction | Through thickness, diameter, axial, etc |
| Maximum working temperature | 80 to 240 degrees C |
| Package Condition |
Standard air/sea protective package, unless specified.
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2 manufacture process:
Main steps:
1 raw material ready
2 strip casting
3 hydrogen broken
4 jet milling
5 magnetic pressing
6 sintering
7 magnetic property test
8 machining
9 electroplating
10 inspection
3 Coating
| surface | coating | color | Thickness(um) | SST | PCT |
| Nickel | NI(NICUNI) | Bright silver | 10-20 | >24-72 | >24-72 |
| Cr3+Zinc | Zn/C-Zn | 5-8 | >16-48 | ||
| Sn | NI+CU+NI+Sn | silver | 10-25 | >36-72 | >48 |
| Epoxy | Epoxy | Black/grey | 10-20 | >48 | |
| Passivation | Dark gray | 1-3 | Temporary protection | ||
| Phosphate | Dark gray | 1-3 | Temporary protection |
4 applications & cooperated customers
| Areas | Coorporated companies |
| Wind energy | Gold Wind Company |
| EPS mortor | AMK company |
| Speakers | Panasonnic |
other applications car computer airplane phone ans so on.
5 FAQ
1, Can you do the seicial designs for us?
Of course ,We have a professional team having rich experience in design and manufacturing just send us your design and tell us the dimensional tolerance, and we will produce the special moulds for your products and produce the products.
2, When can I inquiry or email or calling or skype you ?
We usually quote within 24 hours after we get your inquiry . If you are very urgent to get the price , please call us or tell us in your email so that we would regard your inquiry priority .
3, How can I get a sample to check your quality ?
After price confirmation , you can require for samples to check our quality . If you need the samples , we will charge for the sample cost . But the sample cost can be refundable after order confirmation when your quantity of the order is more about the MOQ .
6 why choose us
1 we have professional design produce and sales teams.
2 we have professional and advanced machines
3 our products are all in high quality
4 we have good after-service
5 all manufacture steps can be finished by our own.
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