Rare Earth Neodymium MagnetsRare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. Our permanent magnets are composed of licensed grade 40 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish.Rare earth magnets are available in sintered and bonded forms. Sintered magnets are a type of ceramic composed of the compressed powder of the alloy material being used. Sintering involves the compaction of fine alloy powder in a die and then fusing the powder into a solid material with heat. While the sintered magnets are solid, their physical properties are more similar to a ceramic and are easily broken and chipped. Bonded magnets use a polymer base to hold the alloy powder together. The energy product of bonded magnets is much lower than that of the sintered magnets. Sintered NdFeB magnets are generally plated or coated with a material to prevent corrosion. There are various coatings available. Nickel-Copper-Nickel plating has excellent corrosion resistance and durability as well as providing an clean and shiny appearance. All of our stock rare earth magnets are sintered Neodymium-Iron-Boron magnets plated in Nickel-Copper-Nickel. The grade of a magnet directly refers to the Maximum Energy Product of the material that composes the magnet. It in no way refers to the physical properties of the magnet. Simplistically, grade is generally used to describe how "strong" a permanent magnet material is. The energy product is specified in the units Gauss Oersted. One MGOe is 1,000,000 Gauss Oersted. A grade forty (N40) would have a Maximum Energy Product of 40 MGOe. The higher the grade the “stronger” the magnet. Our Neodymium magnets have the following properties:
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') "1/16x1/32 Rare Earth Disc Magnets (200) - Click to see a larger image") |
') "1/2x1/2x1/2 Rare Earth Cube Magnets (4) - Click to see a larger image") |
') "1/4x1/4x1/10 Rare Earth Block Magnets (50) - Click to see a larger image") |
1/16x1/32 Rare Earth Disc Magnets (200)Click on the image to see precise dimensions MFM591 - $13.99 | 1/2x1/2x1/2 Rare Earth Cube Magnets (4)Click on the image to see precise dimensions MFM607 - $15.99 | 1/4x1/4x1/10 Rare Earth Block Magnets (50)Click on the image to see precise dimensions MFM610 - $13.99 |
') "1/8qx1/32 Rare Earth Disc Magnets (150) - Click to see a larger image") |
') "1/8x1/16 Rare Earth Disc Magnets (100) - Click to see a larger image") |
') "1x1/4x1/10 Rare Earth Block Magnets (12) - Click to see a larger image") |
1/8qx1/32 Rare Earth Disc Magnets (150)Click on the image to see precise dimensions MFM592 - $12.99 | 1/8x1/16 Rare Earth Disc Magnets (100)Click on the image to see precise dimensions MFM566 - $12.99 | 1x1/4x1/10 Rare Earth Block Magnets (12)Click on the image to see precise dimensions MFM834 - $13.99 |
') "1x1/8 Rare Earth Disc Magnets (4) - Click to see a larger image") |
') "3/4x1/5x1/8 Rare Earth Ring Magnets (6) - Click to see a larger image") |
1x1/8 Rare Earth Disc Magnets (4)Click on the image to see precise dimensions MFM604 - $14.99 | 3/4x1/5x1/8 Rare Earth Ring Magnets (6)Click on the image to see precise dimensions MFM589 - $13.99 |
