Permanent Magnet Sintered Ndfeb Magnet - Ring

Ndfeb magnet, Magnet Grade : From N35 to N52, Dimension : From Dia 1 to Dia 220mm, Kinds of coating - details see: //
Place of Origin: Zhejiang China (Mainland)Brand Name: YHModel Number: RingType: Permanent
Composite: Rare Earth MagnetShape: RingApplication: Industrial MagnetDimensions: 3/8" od x 3/16" id x 3/8" thick ( Dia 9.52 xDia 3.76x 9.52mm)
Tolerances: +/-0.05mm ( ±0.004" x ±0.004" x ±0.004")Material: NdFeB, Grade N42 or otherPlating/Coating:: Ni-Cu-Ni (Nickel) or otherMagnetization Direction: Axial (Poles on Flat Ends)
Weight: 0.135 oz. (3.82 g)Pull Force: 7.02 lbsTiny Magnet: YesMax Operating Temp: 80 degree
Brmax: 13200 Gauss   
Permanent Magnet Sintered Ndfeb Magnet
contact supplier for Permanent Magnet Sintered Ndfeb Magnet

We produce and sell NdFeB Magnet in various shapes(segment, block, cube, cylinder, disc, ring, rod, sphere, etc)with different grade

RARE EARTH MAGNET: ( HS Code : 8505119000 )

1. Meterial:Neodymium, NdFeB

2. Technology:Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology

3. Magnetic properties: High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature;

4. Grades:N33-N52, 33M-48M, 33H-48H, 30SH-45SH, 30UH-38UH and 30EH-35EH;

5. Shapes and sizes: Various kinds or according to customers' request .

6. Coatings:Ni, Zn, Phosphating, epoxy and so on;7. Motor magnet Applications: Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.

8. Quality Control :Our QC team consistsof more than 12 professional people to ensure 100% products high quality .

9. Extremer Power Warming :These magnets are dangerous ! If your fingers are trapped between two they will cut your skin . Please be note they should only be handled with great care .

10. Transportation : All available shipping ways could be applied ,by courier ,by air or by sea . Appinted shipping company or our own forwarders all could be used in shipment . Full-way tracking the cargos for you before th good arrival .

Our factory can also manufacture various sizes of other NdFeB magnets, according to the customer's specification

Please feel free to email us if you have any requirments

Magnetic Characteristics

Material TypeResidual Flux Density
Coercive Force
Intrinsic Coercive Force (Hci)Max.Energy Product
N3511.7-12.1 KGs>11.0 KOe>12 KOe33-35 MGOe
N3812.2-12.6 KGs>11.0 KOe>12 KOe36-38 MGOe
N4012.6-12.9 KGs>11.0 KOe>12 KOe38-40 MGOe
N4213.0-13.2 KGs>11.0 KOe>12 KOe40-42 MGOe
N4513.3-13.7 KGs>11.0 KOe>12 KOe43-45 MGOe
N4813.8-14.2 KGs>11.0 KOe>12 KOe45-48 MGOe
N5014.1-14.5 KGs>11.0 KOe>11 KOe48-50 MGOe
N5214.5-14.8 KGs>11.2 KOe>11 KOe49.5-52 MGOe
N35M11.7-12.1 KGs>11.4 KOe>14 KOe33-35 MGOe
N38M12.2-12.6 KGs>11.4 KOe>14 KOe36-38 MGOe
N40M12.6-12.9 KGs>11.4 KOe>14 KOe38-40 MGOe
N42M13.0-13.3 KGs>11.4 KOe>14 KOe40-42 MGOe
N45M13.3-13.7 KGs>11.4 KOe>14 KOe42-45 MGOe
N48M13.6-14.2 KGs>11.4 KOe>14 KOe45-48 MGOe
N50M14.1-14.5 KGs>11.4 KOe>14 KOe48-50 MGOe
N33H11.4-11.7 KGs>10.3 KOe>17 KOe31-33 MGOe
N35H11.7-12.1 KGs>10.8 KOe>17 KOe33-35 MGOe
N38H12.2-12.6 KGs>11.4 KOe>17 KOe36-38 MGOe
N40H12.6-12.9 KGs>11.4 KOe>17 KOe38-40 MGOe
N42H13.0-13.3 KGs>11.4 KOe>17 KOe40-42 MGOe
N45H13.3-13.7 KGs>11.4 KOe>17 KOe42-45 MGOe
N48H13.6-14.2 KGs>11.4 KOe>16 KOe45-48 MGOe
N30SH10.8-11.2 KGs>10.1 KOe>20 KOe28-30 MGOe
N33SH11.4-11.7 KGs>10.3 KOe>20 KOe31-33 MGOe
N35SH11.7-12.1 KGs>10.8 KOe>20 KOe33-35 MGOe
N38SH12.2-12.6 KGs>11.4 KOe>20 KOe36-38 MGOe
N40SH12.6-12.9 KGs>11.4 KOe>20 KOe38-40 MGOe
N42SH13.0-13.3 KGs>11.4 KOe>20 KOe40-42 MGOe
N45SH13.3-13.7 KGs>11.4 KOe>19 KOe43-45 MGOe
N28UH10.4-10.8 KGs>9.8 KOe>25 KOe26-28 MGOe
N30UH10.8-11.2 KGs>10.1 KOe>25 KOe28-30 MGOe
N33UH11.4-11.7 KGs>10.3 KOe>25 KOe31-33 MGOe
N35UH11.7-12.1 KGs>10.8 KOe>25 KOe33-35 MGOe
N38UH12.2-12.6 KGs>11.4 KOe>25 KOe36-38 MGOe
N40UH12.6-12.9 KGs>11.4 KOe>25 KOe38-40 MGOe
N28EH10.4-10.8 KGs>9.8 KOe>30 KOe26-28 MGOe
N30EH10.8-11.2 KGs>10.1 KOe>30 KOe28-30 MGOe
N33EH11.4-11.7 KGs>10.3 KOe>30 KOe31-33 MGOe
N35EH11.7-12.1 KGs>10.8 KOe>30 KOe33-35 MGOe
N38EH12.2-12.6 KGs>10.8 KOe>30 KOe36-38 MGOe
Plating Characteristics
Plating TypeOverall ThicknessSalt Spray TestPressure Cooker Test
NiCuNi (Nickel Copper Nickel)15-21 μm24 hours48 hours
NiCu + Black Nickel15-21 μm24 hours48 hours
NiCuNi + Epoxy20-28 μm48 hours72 hours
NiCuNi + Gold16-23 μm36 hours72 hours
NiCuNi + Silver16-23 μm24 hours48 hours
Zinc7-15 μm12 hours24 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°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.
Packaging Detail:Insulation Packing with Metal Sheet. Gross Weight not more than 20 kg per ctn
Delivery Detail:10-20 days

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