Sintered Neodymium Rare Earth NdFeB Ring Magnet Permanent N52 N35

Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet Coating: Nickel, Zinc, Ni-Cu-Ni and Customized Type: Permanent Process Techinic: Sintering Trademark: Neutral, Customized Origin: Guangdong, China Shape: Ring Grade: N35, N38, N40, N42, N45, N48, N50, N52 Composition: Neodymium Iron Boron Size and Shape: Can Be Customized Specification: ISO9001: 2008, RoHS, SGS HS Code: 8505119000 Radial Oriented Ring Sintered Neodymium Rare Earth Permanent N52 N35 Magnets

The size and shape can be customized. Description:   Product Name: Neodymium Ring Magnet/NdFeB Ring Magnet/Permannt Neodymium ring magnets Applications: NdFeB Ring magnets are Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on. Material: NdFeB (Neodymium Iron Boron) Shape: Ring (Customized shapes for Sintered NdFeB  Magnet are available.) Tolerance in size: +/-0.05mm or +/-0.1mm Type of coating:  Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more. Grade:  N35-N52; N33M-N50M; N33H-N48H; N30SH-N45SH;N30UH-N40UH; N28EH-N38EH,N28AH-N35AH.   Magnetic Characteristics:                                                                

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

 

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)

    Plating Characteristics:                                               

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

  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 ºC . Pressure Cooker Test (PCT) conducted at 2 atm, 120 ºC at 100% RH.   FAQ:
In order to quote you the best price timely, please kindly provie the followsing information in your inquiry: 1) Product details: Shape&dimensions, grade, tolerances, coating, magnetization direction 2) Order quantity 3) Attached drawings if customized 4) Any special packing, delivring or oter requirements

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