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Neodymium Block Magnets

Sizes range from tiny cubes and thin blocks to large heavy-duty block magnets

Powerful rare earth neodymium block, rectangle and square magnets engineered for industrial use, electronics, and versatile DIY projects.

1/16 x 1/16 x 1/16 Inch Neodymium Rare Earth Cube Magnet N42 (10 Pack) B111

b111 - 1/16 x 1/16 x 1/16 Inch Neodymium Rare Earth Cube Magnet N42 10 Pack

b111 - 1/16 x 1/16 x 1/16 Inch Neodymium Rare Earth Cube Magnet N42 10 Pack-2

0.14

5754 Gauss

$1.08

1/16 x 1/16 x 1/8 Inch Neodymium Rare Earth Bar Magnet N42 (10 Pack) B112

b112 - 1/16 x 1/16 x 1/8 Inch Neodymium Rare Earth Bar Magnet N42 10 Pack

b112 - 1/16 x 1/16 x 1/8 Inch Neodymium Rare Earth Bar Magnet N42 10 Pack-2

0.19

6353 Gauss

$1.32

1/16 x 1/16 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42 B114

b114 - 1/16 x 1/16 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42

b114 - 1/16 x 1/16 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42 -2

0.24

6535 Gauss

$0.24

1/8 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 (10 Pack) B221

b221 - 1/8 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 10 Pack

b221 - 1/8 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 10 Pack-2

0.53

4400 Gauss

$1.32

1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N42 B222

b222 - 1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N42

b222 - 1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N42 -2

0.86

5754 Gauss

$0.22

1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N52 B222G-N52

b222g-n52 - 1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N52

b222g-n52 - 1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N52 -2

1.06

6451 Gauss

$0.30

1/8 x 1/8 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42 B224

b224 - 1/8 x 1/8 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42

b224 - 1/8 x 1/8 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42 -2

1.14

6353 Gauss

$0.35

1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42 B228

b228 - 1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42

b228 - 1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42 -2

1.19

6535 Gauss

$0.62

1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N52 B228-N52

b228-n52 - 1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N52

b228-n52 - 1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N52 -2

1.47

7327 Gauss

$0.76

1/8 x 1/8 x 3/4 Inch Neodymium Rare Earth Bar Magnet N42 B22C

b22c - 1/8 x 1/8 x 3/4 Inch Neodymium Rare Earth Bar Magnet N42

b22c - 1/8 x 1/8 x 3/4 Inch Neodymium Rare Earth Bar Magnet N42 -2

1.22

6571 Gauss

$0.89

1/8 x 1/8 x 1 Inch Neodymium Rare Earth Bar Magnet N42 B22X0

b22x0 - 1/8 x 1/8 x 1 Inch Neodymium Rare Earth Bar Magnet N42

b22x0 - 1/8 x 1/8 x 1 Inch Neodymium Rare Earth Bar Magnet N42 -2

1.23

6584 Gauss

$1.19

3/16 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 B321

b321 - 3/16 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42

b321 - 3/16 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 -2

0.68

3957 Gauss

$0.19

3/16 x 3/16 x 1/32 Inch Neodymium Rare Earth Block Magnet N42 B3301

b3301 - 3/16 x 3/16 x 1/32 Inch Neodymium Rare Earth Block Magnet N42

b3301 - 3/16 x 3/16 x 1/32 Inch Neodymium Rare Earth Block Magnet N42 -2

0.42

1895 Gauss

$0.17

3/16 x 3/16 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 B331

b331 - 3/16 x 3/16 x 1/16 Inch Neodymium Rare Earth Block Magnet N42

b331 - 3/16 x 3/16 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 -2

0.92

3387 Gauss

$0.24

3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N42 B333

b333 - 3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N42

b333 - 3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N42 -2

2.29

5754 Gauss

$0.46

3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N52 B333-N52

b333-n52 - 3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N52

b333-n52 - 3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N52 -2

2.83

6451 Gauss

$0.56

3/16 x 3/16 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42 B338

b338 - 3/16 x 3/16 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42

b338 - 3/16 x 3/16 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42 -2

2.78

6457 Gauss

$0.97

3/16 x 3/16 x 1 Inch Neodymium Rare Earth Bar Magnet N42 B33X0

b33x0 - 3/16 x 3/16 x 1 Inch Neodymium Rare Earth Bar Magnet N42

b33x0 - 3/16 x 3/16 x 1 Inch Neodymium Rare Earth Bar Magnet N42 -2

2.96

6563 Gauss

$1.86

Out of Stock

1/4 x 1/8 x 1/32 Inch Neodymium Rare Earth Bar Magnet N42 B4201

b4201 - 1/4 x 1/8 x 1/32 Inch Neodymium Rare Earth Bar Magnet N42

b4201 - 1/4 x 1/8 x 1/32 Inch Neodymium Rare Earth Bar Magnet N42 -2

0.38

2186 Gauss

$0.17

1/4 x 1/8 x 1/16 Inch Neodymium Rare Earth Bar Magnet N42 B421

b421 - 1/4 x 1/8 x 1/16 Inch Neodymium Rare Earth Bar Magnet N42

b421 - 1/4 x 1/8 x 1/16 Inch Neodymium Rare Earth Bar Magnet N42 -2

0.83

3723 Gauss

$0.22

12 3 4 5

Strong Rare Earth Neodymium Block Magnets for Sale

Huge stock and selection of rare earth neodymium block magnets. Permanent neodymium square, rectangle and block magnets come in multiple grades from N35 to the strongest grade N52. Our standard block magnets are N42 which a nice balance between high performance and low cost. We offer block magnets, cube magnets and bar magnets which are the typical north south magnets often used in science class. ranging from small bricks with lengths and thickness as low as 1/16" all the way up to very powerful blocks 6" for heavy duty applications. We also offer thin flat block magnets with a thickness as low as 1/32" (~.8mm).

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

Block Magnet Coatings

We offer the below nickel (Ni-Cu-Ni), black nickel (Ni-Cu-Ni-BlackNi), gold (Ni-Cu-Ni + Au), rubber and plastic coatings for our block magnets. Our standard 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 (Ni-Cu-Ni + epoxy) and silver (Ni-Cu-Ni + Ag) available. See custom neodymium block magnets for more details

Nickel
Black Nickel
Gold
Rubber
Plastic

Block Magnet Magnetization Directions

We offer block magnets in through thickness, through width and through length magnetization directions. Most block magnets are through their thickness dimension and bar magnets are through the length dimension and resemble the traditional north and south pole magnets used in science experiments. Our products are listed in order of length, width, then thickness. Below are diagrams of three magnetic polarizations we provide.

Through thickness polarization
Through width polarization
Through length polarization

Block Magnet Specs

Get more detailed technical information and specifications for neodymium block 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 6" or about 150mm. 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 block magnets are 0.004" or 0.1mm.

Pull Force

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

Block Magnet General Information

Below are some common questions we get regarding block magnets.

What is a block magnet?

A block magnet is a magnet in a brick shape with a length, width and height (thickness) that can come in anything from a square or rectangle to a long bar or cube shape.

Block Magnet Applications

Block 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 block magnets are used.

Neodymium Block Magnets

1/16 x 1/16 x 1/16 Inch Neodymium Rare Earth Cube Magnet N42 (10 Pack) B111

1/16 x 1/16 x 1/8 Inch Neodymium Rare Earth Bar Magnet N42 (10 Pack) B112

1/16 x 1/16 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42 B114

1/8 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 (10 Pack) B221

1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N42 B222

1/8 x 1/8 x 1/8 Inch Neodymium Rare Earth Cube Magnet N52 B222G-N52

1/8 x 1/8 x 1/4 Inch Neodymium Rare Earth Bar Magnet N42 B224

1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42 B228

1/8 x 1/8 x 1/2 Inch Neodymium Rare Earth Bar Magnet N52 B228-N52

1/8 x 1/8 x 3/4 Inch Neodymium Rare Earth Bar Magnet N42 B22C

1/8 x 1/8 x 1 Inch Neodymium Rare Earth Bar Magnet N42 B22X0

3/16 x 1/8 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 B321

3/16 x 3/16 x 1/32 Inch Neodymium Rare Earth Block Magnet N42 B3301

3/16 x 3/16 x 1/16 Inch Neodymium Rare Earth Block Magnet N42 B331

3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N42 B333

3/16 x 3/16 x 3/16 Inch Neodymium Rare Earth Cube Magnet N52 B333-N52

3/16 x 3/16 x 1/2 Inch Neodymium Rare Earth Bar Magnet N42 B338

3/16 x 3/16 x 1 Inch Neodymium Rare Earth Bar Magnet N42 B33X0

1/4 x 1/8 x 1/32 Inch Neodymium Rare Earth Bar Magnet N42 B4201

1/4 x 1/8 x 1/16 Inch Neodymium Rare Earth Bar Magnet N42 B421

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Strong Rare Earth Neodymium Block Magnets for Sale

Block Magnet Coatings

Block Magnet Magnetization Directions

Through thickness polarization

Through width polarization

Through length polarization

Block Magnet Specs

Strength Grades

Heat Grades

Sizes

Tolerances

Pull Force

Block Magnet General Information

What is a block magnet?

Block Magnet Applications

Our Services