NdFeB Magnets with Nickel/Zinc/Gold Coating, Used in Printers

Disc: Ø20.0 x 2mm

Model number: N35 NI

Type: permanent composite

NdFeB magnet shape: disc

Application: industrial magnet

Working temperature: 80°C

Coating: nickel

Wide range of grades available: N33 to N52

Density: 7.4 o 7.6g/cm³

Hardness: 600 (HV)

Higher maximum energy product, (BH) maximum, which can easily reach 30 MGOe and even goes up to 50 MGOe

Can replace SmCo magnets in most cases, especially where operating temperature is less than 80°C

Very high strength

Compared to Alnico and SmCo magnets, relatively easy to machine

Manufacturing process: sintering (most common), injection molding and compression bonding

Shapes available: blocks, bars, discs, rings, cylinders, arc segments, or irregular shapes

Wide range of grades available from about 3330 to 5311 (first 2 digits represent BH maximum, and second two digits represent intrinsic coercivity, Hci)

Some particular grades can achieve 200°C maximum working temperature

Saturation magnetizing field required about 35kOe

Machining neodymium magnets should be machined by grinding using diamond wheels, however, of hard magnet materials, neo-magnets are least difficult to machine

Can successfully machine very small magnets

Tolerance: ±0.05mm or customized

Coating: nickel, black nickel, zinc, blue zinc, epoxy resin, gold, silver and passivation

Applications: speakers, sensors, motors, rotors, wind turbine, wind generators, loudspeakers, magnetic hooks and magnetic holder