Strong Neodymium Disc & Cylinder Magnets for Sale

Strong Rare Earth Neodymium Disc Magnets for Sale

Huge inventory and selection of rare earth neodymium disc magnets. Our round permanent neodymium magnets come in multiple grades from N35 to the strongest grade N52. Most of our disc magnets are N42 which a nice balance between low cost and high performance. Our selection features both disc magnets and cylinder/rod magnets ranging from small round discs with diameters as low as 1/16" all the way up to very powerful discs 3" in diameter for heavy duty applications. We also offer thin flat disc magnets with a thickness as low as 1/32" (~.8mm).

We offer large volume discounts for all disc magnets and have additional promotions, sales and special discount coupons for our newsletter subscribers.

Disc Magnet Coatings

We provide the below nickel (Ni-Cu-Ni), black nickel (Ni-Cu-Ni-BlackNi), gold (Ni-Cu-Ni + Au), rubber and plastic coatings for our disc magnets. Our default coating is a 3-layer nickel-copper-nickel (Ni-Cu-Ni) plating to protect from moisture and corrosion, enhance durability and to give a nice smooth silver finish. Additional coatings such as epoxy (Ni-Cu-Ni + epoxy) and silver (Ni-Cu-Ni + Ag) available. See custom neodymium disc magnets for more details

Nickel
Black Nickel
Epoxy
Gold
Rubber
Plastic

Disc Magnet Magnetization Directions

We offer disc magnets in through thickness and diametric magnetization directions. Most of our disc magnets are axially magnetized through their thickness and the rest are diametrically magnetized across the round diameter of the magnet. Our disc dimensions are listed in order of diameter then thickness. Below are diagrams of two magnetic polarizations we provide.

Through thickness axial polarization
Through diameter diametric polarization

Disc Magnet Specs

Get more detailed technical information and specifications for neodymium disc magnets below on our specs page and product specific features, downloads, drawings, magnetic field data and stats on individual product pages.

Strength Grades

Available in strength grades:

Heat Grades

Available in heat grades:

Sizes

Available in tiny sizes from 1/32" or about 0.8mm up to large 3" or about 75mm. Popular sizes like 1/4", 1/2", 3/4", 1", 2", many with countersunk holes. Use our magnet finder tool for metric equivalents.

Tolerances

Dimensional tolerances for all disc magnets are 0.004" or 0.1mm.

Pull Force

Magnet strength testing for all disc magnets was done with precision equipment. Use our free Magnet Strength Calculator. Pull force may vary by use case.

Disc Magnet General Information

Below are some common questions we get regarding round disc magnets.

What is a disc magnet?

A disc magnet is basically a round circle magnet with a diameter and thickness. Disc magnets are also known as round, circular, circle, button, or wafer magnets.

Disc Magnet Applications

Disc magnets are used in a wide variety of applications from industrial, recycling, electronics to DIY projects and every day use. Check out our applications categories, magnet uses page and blog to learn more about how neodymium disc magnets are used.

Neodymium Disc Magnets

1/4 x 1/8 Inch Neodymium Rare Earth Epoxy Coated Disc Magnet N42 D42E

1/2 x 1/8 Inch Neodymium Rare Earth Epoxy Coated Disc Magnet N42 D82E

3/4 x 1/8 Inch Neodymium Rare Earth Epoxy Coated Disc Magnet N42 DC2E