D50*D28*H3.5 NdFeB Ring Magnet (N42) Magnetic Material Rare Earth Products

Min.Order: 1,000
Product origin: Ningbo, Zhejiang, China
Infringement complaint: complaintComplaint
US$ 1.95 ~ 1.99

Description
Sintered NdFeB Magnet Ring Disc 

1. Arc or rectangular magnet.
2. Zinc coating to protect the surface.
3. Used for electric motors

1. Magnet: Neodymium magnet

2. Characteristics:
Super strong Br resident induction.
Excellent demagnetization resistance capability.

3. Surface Treatment Method:
Black Nickel, Chroming, Copper, Epoxy, Gold, Nickel, Nickel+Epoxy, Nickel+Sn, Passivation, Zinc, phosphating

4. Applications of Neodymium Magnets:
AC Motors, DC Motors, servo motors, step motors
Computer rigid disc drives
Magnetic Separators
Magnetic resonance imaging
Speakers & earphones
Medical care machines

 
ParameterunitStandard Data
Curie Temperature(Tc)ºC310-380
Maximum Operating Temperature(Tw)ºC80-200
HardnessHv620
Electrical ResistivityΩ.CM1.8X10-4 ~2.0X10-4
Density(D)g/cm37.5~7.65
Recoil Permeabilityµ rec1.05
Magnetization Field Strength(Hs)KOe>  30
KA/m>  2400
Bending StrengthMpa295~345
Temp. Coefficient of Br (aBr)%/ºC-0.11~ -0.12
Temp Coefficient of Hcj (aHcj)%/ºC-0.5~ -0.7
 
Company Profile




Test Equipment & Workshop
 • Demagnetization Curves & Outgoing Inspection Report for each shipment.
 

Packaging & Shipping


Standard Packaging
•  Vacuum packaging for all Neodymium magnets and Neodymium magetic assemblies.
• Shielding box and wooden box to protect the Neodymium magnets during shipping.

Shipping Methods 
• Contract price with FedEx, DHL, UPS and TNT to minimum your shipping cost.
• Experienced shipping forwarder for Ocean and Air shipments.

FAQ

 

 


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