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Super Strong Nickel Plated small circular Neodymium Ring Magnets for Speaker

Jinyu Neodymium Magnet

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Description

Super Strong Nickel Plated Neodymium Speaker Magnets?

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Description:

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# High?intrinsic?,coercive?force?
# Material:Sintered?Neodymium-Iron-Boron?
# Shape:Ring,block,disc,segment,strip?and?so?on?
# Size:As?your?requirement,large?to?about?200mm?
# Magnetization?direction:?through?diameter?or?thickness,?width,length?
# Surface?treatment:?Coating?is?an?in?alienable?component?of?NdFeb?magnets.?It?prevents?these
# ?magnets?from?oxidation.Widely?used?coatings?are?Ni-Cu-Ni,?Nickel,?Zn,?Gold,?Silver,?Copper,?Epoxy,?
# Chemical,?PTFE,?Parylene,?Everlube,?Passivation

Magnetic?Characteristics:

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

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Material?Type ? | Residual?Flux? Density(Br) | Coercive?Force(Hc) | Intrinsic?Coercive? Force?(Hci) | Max.Energy?Product (BH)max |
N35 | 11.7-12.1?KGs | >11.0?KOe | >12?KOe | 33-35?MGOe |
N38 | 12.2-12.6?KGs | >11.0?KOe | >12?KOe | 36-38?MGOe |
N40 | 12.6-12.9?KGs | >11.0?KOe | >12?KOe | 38-40?MGOe |
N42 | 13.0-13.2?KGs | >11.0?KOe | >12?KOe | 40-42?MGOe |
N45 | 13.3-13.7?KGs | >11.0?KOe | >12?KOe | 43-45?MGOe |
N48 | 13.8-14.2?KGs | >11.0?KOe | >12?KOe | 45-48?MGOe |
N50 | 14.1-14.5?KGs | >11.0?KOe | >11?KOe | 48-50?MGOe |
N52 | 14.5-14.8?KGs | >11.2?KOe | >11?KOe | 49.5-52?MGOe |
N35M | 11.7-12.1?KGs | >11.4?KOe | >14?KOe | 33-35?MGOe |
N38M | 12.2-12.6?KGs | >11.4?KOe | >14?KOe | 36-38?MGOe |
N40M | 12.6-12.9?KGs | >11.4?KOe | >14?KOe | 38-40?MGOe |
N42M | 13.0-13.3?KGs | >11.4?KOe | >14?KOe | 40-42?MGOe |
N45M | 13.3-13.7?KGs | >11.4?KOe | >14?KOe | 42-45?MGOe |
N48M | 13.6-14.2?KGs | >11.4?KOe | >14?KOe | 45-48?MGOe |
N50M | 14.1-14.5?KGs | >11.4?KOe | >14?KOe | 48-50?MGOe |
N33H | 11.4-11.7?KGs | >10.3?KOe | >17?KOe | 31-33?MGOe |
N35H | 11.7-12.1?KGs | >10.8?KOe | >17?KOe | 33-35?MGOe |
N38H | 12.2-12.6?KGs | >11.4?KOe | >17?KOe | 36-38?MGOe |
N40H | 12.6-12.9?KGs | >11.4?KOe | >17?KOe | 38-40?MGOe |
N42H | 13.0-13.3?KGs | >11.4?KOe | >17?KOe | 40-42?MGOe |
N45H | 13.3-13.7?KGs | >11.4?KOe | >17?KOe | 42-45?MGOe |
N48H | 13.6-14.2?KGs | >11.4?KOe | >16?KOe | 45-48?MGOe |
N30SH | 10.8-11.2?KGs | >10.1?KOe | >20?KOe | 28-30?MGOe |
N33SH | 11.4-11.7?KGs | >10.3?KOe | >20?KOe | 31-33?MGOe |
N35SH | 11.7-12.1?KGs | >10.8?KOe | >20?KOe | 33-35?MGOe |
N38SH | 12.2-12.6?KGs | >11.4?KOe | >20?KOe | 36-38?MGOe |
N40SH | 12.6-12.9?KGs | >11.4?KOe | >20?KOe | 38-40?MGOe |
N42SH | 13.0-13.3?KGs | >11.4?KOe | >20?KOe | 40-42?MGOe |
N45SH | 13.3-13.7?KGs | >11.4?KOe | >19?KOe | 43-45?MGOe |
N28UH | 10.4-10.8?KGs | >9.8?KOe | >25?KOe | 26-28?MGOe |
N30UH | 10.8-11.2?KGs | >10.1?KOe | >25?KOe | 28-30?MGOe |
N33UH | 11.4-11.7?KGs | >10.3?KOe | >25?KOe | 31-33?MGOe |
N35UH | 11.7-12.1?KGs | >10.8?KOe | >25?KOe | 33-35?MGOe |
N38UH | 12.2-12.6?KGs | >11.4?KOe | >25?KOe | 36-38?MGOe |
N40UH | 12.6-12.9?KGs | >11.4?KOe | >25?KOe | 38-40?MGOe |
N28EH | 10.4-10.8?KGs | >9.8?KOe | >30?KOe | 26-28?MGOe |
N30EH | 10.8-11.2?KGs | >10.1?KOe | >30?KOe | 28-30?MGOe |
N33EH | 11.4-11.7?KGs | >10.3?KOe | >30?KOe | 31-33?MGOe |
N35EH | 11.7-12.1?KGs | >10.8?KOe | >30?KOe | 33-35?MGOe |
N38EH | 12.2-12.6?KGs | >10.8?KOe | >30?KOe | 36-38?MGOe |
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Working?Temperature | Grade | Max.Operating?Temperature |
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) |
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Plating?Characteristics:

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? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??

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Plating?Type | Overall?Thickness | Salt?Spray?Test | Pressure?Cooker?Test |
NiCuNi?(Nickel?Copper?Nickel) | 15-21?μm | 24?hours | 48?hours |
NiCu?+?Black?Nickel | 15-21?μm | 24?hours | 48?hours |
NiCuNi?+?Epoxy | 20-28?μm | 48?hours | 72?hours |
NiCuNi?+?Gold | 16-23?μm | 36?hours | 72?hours |
NiCuNi?+?Silver | 16-23?μm | 24?hours | 48?hours |
Zinc | 7-15?μm | 12?hours | 24?hours |
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Each?individual?layer?of?Nickel?and?Copper?are?5-7?μm?thick.??The?Gold?and?Silver?plating?layers?are?1-2?μm

?thick.

Test?results?shown?to?allow?comparison?between?plating?options.?

Performance?in?your?application?under?your?specific?test?conditions?may?vary.

Salt?Spray?testing?conducted?with?a?5%?NaCl?solution,?at?35?℃?.

Pressure?Cooker?Test?(PCT)?conducted?at?2?atm,?120?℃?at?100%?RH.

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Applications:

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Motors,Wind?Power,Sensors,Computers?and?Peripherals,Magnetic?Assemblies,Automotive,Motion?Control,

Aerospace,Research?and?Development,Communications,Medical?Device?and?Diagnostics,Home?appliance,

Other?magnetic?applications?or?you?can?find?new?application?according?to?your?design.

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FAQ | ? | ? | ? | ? | ? |
When?inquiring?or?ordering,?please?send?us?following?information:? |
1.?Type?of?magnet?(material?&?grade)? | ? | ? | ? |
2.?Quantity?(annual?and?per?shipment)? | ? | ? | ? |
3.?Shape?and?dimensions?(drawing?if?necessary)? | ? | ? |
4.?Direction?of?magnetization? | ? | ? | ? |
5.?Magnetized?or?unmagnetized? | ? | ? | ? |
6.?Details?of?surface?treatment? | ? | ? | ? |
7.?Application?if?possible? | ? | ? | ? | ? |
8.?Other?information?and/or?requirements? | ? | ? |
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