Shape

Block

(41)

Cube

(41)

Grade

N42

(29)

N52

(12)

Magnetization Direction

Thickness

(41)

Length

1/16"

(1)

1/8"

(2)

3/16"

(2)

1/4"

(4)

5/16"

(1)

3/8"

(5)

7/16"

(1)

1/2"

(16)

9/16"

(1)

5/8"

(1)

3/4"

(2)

1 1/2"

(2)

(1)

up to 1/8"

(3)

> 1/8" thru 1/4"

(6)

> 1/4" thru 3/8"

(6)

> 3/8" thru 1/2"

(17)

> 1/2" thru 3/4"

(4)

> 3/4" thru 1"

(2)

> 1" thru 2"

(3)

Width

1/16"

(1)

1/8"

(2)

3/16"

(2)

1/4"

(4)

5/16"

(1)

3/8"

(5)

7/16"

(1)

1/2"

(16)

9/16"

(1)

5/8"

(1)

3/4"

(2)

1 1/2"

(2)

(1)

up to 1/8"

(3)

> 1/8" thru 1/4"

(6)

> 1/4" thru 3/8"

(6)

> 3/8" thru 1/2"

(17)

> 1/2" thru 3/4"

(4)

> 3/4" thru 1"

(2)

> 1" thru 2"

(3)

Thickness

1/16"

(1)

1/8"

(2)

3/16"

(2)

1/4"

(4)

3/8"

(5)

7/16"

(1)

1/2"

(16)

9/16"

(1)

3/4"

(2)

1 1/2"

(2)

(1)

up to 1/8"

(3)

> 1/8" thru 1/4"

(6)

> 1/4" thru 3/8"

(6)

> 3/8" thru 1/2"

(17)

> 1/2" thru 3/4"

(4)

> 3/4" thru 1"

(2)

> 1" thru 2"

(3)

Pull Force

up to 2 lb

(3)

> 2 thru 5 lb

(6)

> 5 thru 10 lb

(14)

> 10 thru 20 lb

(6)

> 20 thru 50 lb

(6)

> 50 thru 100 lb

(3)

> 100 thru 250 lb

(2)

> 250 lb

(1)

Plating

Nickel Plated

(28)

Black Nickel Plated

(1)

Gold Plated

(1)

Rubber Coated

(1)

Plastic Coated

(9)

Thermoplastic

(1)

Applications

Art & Sign

(2)

Magnetic Whiteboard

(9)

Magnetic Glass

(9)

Model & Miniature

(5)

Other Categories

Sample Packs

(1)

Monthly Specials

(1)

Gift Magnets

(2)

Surplus

(1)

Max Operating Temp

176°F (80°C)

(41)

Price

categories
> neodymium
> cubes

Various block, cube and bar neodymium magnets

Neodymium Cube Magnets

Neodymium cube magnets are blocks with equal length, width and height

Strong cube magnets are the perfect building blocks for any industrial, commercial or DIY projects.

Versatile rare earth neodymium cube magnets for industrial, electronic, and DIY applications

Huge inventory | Low prices | Fast shipping

Neodymium Cube Magnets - are the strongest cube magnets on the market and are classified as permanent rare-earth magnets. We offer many grades and sizes from small to large magnet cubes. If you need a size or grade we do not stock, we provide Custom Cube Neodymium Magnets in addition to full service expert magnet engineering and design advice, abundant free knowledge and DIY guides and free magnet strength and field calculators.

Types of block magnets

A block magnet is a wide term that includes brick magnets, square magnets, rectangle magnets, cube magnets and bar magnets. The below pictures group these into 3 distinct categories.

Block Magnets

All block, cube, bar, brick, square and rectangle magnets in one category
Bar Magnets

Block magnets long and thin or magnetized through length
Cube Magnets

Block magnets in perfect cube shape

Available coatings for cube magnets

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

Nickel
Black Nickel
Gold
Rubber
Plastic

Neodymium Magnet Coatings

Learn which coating is best for your cube magnets
Custom Cube Magnets

Don't see the coating you need? Get a custom cube magnet quote.

Technical information for cube magnets

Get more detailed technical information and specifications for neodymium cube 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: N35, N38, N40, N42, N45, N48, N50, N52.
Heat grades - Available in heat grades: N, NM, NH, NSH, NUH, NEH, NAH.
Sizes - Available from 1/16" or about 1.5mm, all the way up to 2" or about 50mm. We also have popular sizes like 1/4", 1/2", 3/4", 1", 2" with many sizes with countersunk holes. You can use our magnet finder tool and select metric sizes to find close equivalents to popular metric sizes like 5mm, 10mm, 25mm, 50mm diameters, hole size or thicknesses, etc.
Tolerances - Dimensional tolerances for all cube magnets are 0.004" or 0.1mm.
Pull force - Testing for all cube magnets pull forces was done with precision equipment in real world use situations. You can use our free Magnet Strength Calculator and listed pull force for each product as a reference point, but each use case may present a unique situation and pull force may vary.

Neodymium Magnet Specs

See specs for all neodymium magnets or check product page for cube specific info
Magnet Grades

Learn more about cube magnets in our comprehensive magnet grade blog article
Temperature & Neodymium Magnets

Learn how temperature affects neodymium magnets

Cube magnet magnetization directions

We offer cube magnets in through thickness magnetization. You could technically call it through width or length since it is a cube, but we label them all as through thickness to keep it simple.

Through thickness polarization

General magnet info

Neodymium Magnet Info

Learn the basics about rare earth neodymium magnets
Magnetic Fields

Learn the basics about magnetic fields and gauss strength ratings
Magnet Basics

Learn the basics of magnets and how they work
Magnet FAQ

Answers to many common and uncommon magnet questions

Neodymium magnets (NdFeB) are the strongest rare earth permanent magnets available. Our neodymium cube magnet selection features - plastic and rubber coated magnets and much more. Cube magnets come in huge variety of sizes from tiny magnets to large very strong magnets and can be used for many different applications.

What is a cube magnet? - A cube magnet is a block shaped magnet that has equal dimensions in length, width and height (thickness).

Cube magnet applications and uses

Cube 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 cube magnets are used.