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NdFeB Magnets
NdFeB Material Grade
Demagnetization Curves
Surface Treatments/Dimension & Tolerance
Pricing of Sintered NdFeB Magnets
Data Sheet of NdFeB Magnets (PDF)
NdFeB Block Magnets (PDF)
NdFeB Disc/Cylinder Magnets (PDF)
NdFeB Ring Magnets (PDF)
NdFeB Assembly
Customer Specific NdFeB Magnets
Magnetization Direction of NdFeB Magnets
More Information on NdFeB Magnets
Other Magnetic Materials
Magnetic Devices

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Purchase Order Form (Doc File)
Credit Card Form (Doc File)

Pull force between two disc magnets
Pull force between disc magnet and flat
Pull force between two block magnets
Pull force between block magnet and flat
Magnetic field of a Disc magnet
Magnetic field of a block magnet

Surface Treatments and Dimension Range/Nominal Tolerance
of Sintered NdFeB Magnets (Neodymium Iron Boron)

Surface Treatments
Type Information
Metallic Zinc, Nickel, Nickel + Nickel, Nickel + Tin, Nickel + Copper + Nickel, Gold
Organic Epoxy, Nickel + Epoxy coating
Temporary Surface Passivation

Dimension Range / Nominal Tolerance
Ring Magnet Outer Diameter (mm) Inner Diameter (mm) Thickness (mm)
Maximum 160 140 50
Minimum 2.6 1.8 0.5
Tolerance ±0.1 ±0.1 ±0.1

Block Magnet Length (mm) Width (mm) Thickness (mm)
Maximum 150 50 30
Minimum 2.0 1.5 0.5
Tolerance ±0.1 ±0.1 ±0.1

Disc Magnet Diameter (mm) Thickness (mm)
Maximum 200 35
Minimum 1.2 0.5
Tolerance ±0.1 ±0.1

Segment & other irregular shapes can be manfactured according to customer's sample or blue print

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Markt Schwabener Str. 8
85464 Finsing, Germany
Tel.: +49-(0)8121-2574100
Fax: +49-(0)8121-2574101
Email: info@chenyang.de
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