3/8" x 3/8" N48 Neodymium Cylinder Magnets – Strong Rare Earth Magnets
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Cylinder Magnet |
| Grade |
N48 |
| Shape |
Cylinder |
| Diameter |
3/8" (0.375") |
| Height |
3/8" (0.375") |
| Pull Force |
Approximately 16 lbs* |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer |
| Magnetization |
Through Thickness |
| Br Max |
14,200 Gauss |
| Certification |
ISO Certified |
*Note: Actual pull force may vary depending on the application and contact surface. Testing in your specific application is recommended.
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 16 lbs of pull force under ideal conditions. |
| What is this magnet made of? |
NdFeB (Neodymium-Iron-Boron) rare earth material. |
| Is this stronger than N35 magnets? |
Yes. N48 offers significantly greater magnetic strength than N35, N38, N40, and N42 magnets of the same size. |
| Can it be used outdoors? |
Yes, but additional sealing is recommended for long-term exposure to moisture or harsh environments. |
| What is it commonly used for? |
Alignment, embedded mounting, magnetic closures, woodworking, DIY projects, industrial fixtures, and shop organization. |
Product Overview
These 3/8" x 3/8" N48 Neodymium Cylinder Magnets are designed to deliver exceptional holding power in a compact, perfectly balanced cylindrical shape. With equal diameter and height, they fit precisely into drilled holes, making them an excellent choice for assemblies that require accurate positioning, repeatable alignment, and dependable magnetic performance.
Manufactured from premium N48 grade rare earth neodymium, these magnets provide stronger holding power than standard magnet grades while remaining compact and easy to integrate into countless projects. They are ideal for woodworking, embedded mounting, magnetic closures, fixtures, custom fabrication, hobby projects, and industrial applications where reliable performance is essential.
Each magnet is finished with a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating that offers outstanding protection against corrosion, scratches, and chipping while maintaining a smooth, polished appearance.
What Is a Neodymium Cylinder Magnet?
A neodymium cylinder magnet is a permanent magnet manufactured from NdFeB (Neodymium-Iron-Boron), the strongest commercially available magnetic material. Its cylindrical shape provides excellent magnetic depth while fitting neatly into drilled holes, recesses, and precision-machined components.
These magnets are magnetized through their height (thickness), meaning the north and south poles are located on the two flat circular ends. This magnetization pattern makes cylinder magnets ideal for alignment, positioning, mounting, and high-strength holding applications.
How Strong Is This Magnet?
This 3/8" x 3/8" N48 cylinder magnet delivers approximately 16 pounds of pull force under ideal testing conditions using a thick, clean steel surface.
Since cylinder magnets have a relatively small contact area, actual holding strength will vary depending on the thickness, flatness, finish, and material of the mating surface. We recommend testing the magnet in your intended application to verify performance.
Technical Specifications
| Specification |
Value |
| Magnet Type |
Neodymium Rare Earth Cylinder Magnet |
| Grade |
N48 |
| Shape |
Cylinder |
| Diameter |
3/8" |
| Height |
3/8" |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Pull Force |
Approximately 16 lbs* |
| Br Max |
14,200 Gauss |
| Certification |
ISO Certified |
Nickel-Copper-Nickel Triple-Layer Coating
Every magnet is protected by a Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating that provides excellent durability and corrosion resistance.
Benefits of Nickel-Copper-Nickel Coating
- Superior scratch resistance
- Improved resistance to chipping and cracking
- Excellent corrosion protection
- Smooth, polished metallic finish
- Long-lasting durability for everyday use
Compared to basic epoxy-coated magnets, the Ni-Cu-Ni coating offers better resistance to mechanical wear while maintaining an attractive professional appearance.
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General purpose |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial |
| N42 |
Higher |
Engineering |
| N48 |
Very High |
Precision assemblies, woodworking, industrial applications |
| N52 |
Maximum |
High-performance applications |
Cylinder Magnet Size Comparison
| Size |
Typical Use |
| Small |
Sensors, electronics, crafts |
| Medium |
General holding, woodworking, fixtures |
| 3/8" x 3/8" |
Precision alignment, embedded mounting, industrial assemblies |
| Large |
Heavy-duty industrial holding |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures, jigs, positioning, assembly |
| Robotics |
Sensors and alignment systems |
| Electronics |
Components and magnetic devices |
| Woodworking |
Hidden magnetic mounts and closures |
| DIY & Hobby |
Crafts, models, organization, custom projects |
Common Questions About This Magnet
What is the pull force?
This magnet produces approximately 16 pounds of pull force under ideal conditions. Actual pull force depends on the application and contact surface.
Is N48 stronger than N35?
Yes. N48 offers substantially greater magnetic strength and energy than N35 magnets of the same dimensions.
Can it rust?
Like all neodymium magnets, it contains iron and may corrode if the protective coating becomes damaged or if exposed to moisture for extended periods.
Can it be used outdoors?
Yes. However, for long-term outdoor or marine environments, additional sealing is recommended to maximize corrosion resistance.
What direction is it magnetized?
This magnet is magnetized through its thickness (height), with the north and south poles located on the two flat circular ends.
Do you offer bulk discounts?
Yes. Contact Super Magnet Store for wholesale pricing and volume discounts on large quantity orders.
Why Buy From Super Magnet Store?
- Premium NdFeB rare earth magnets
- ISO-certified quality
- Consistent magnetic performance
- High-strength N48 grade
- Durable Nickel-Copper-Nickel triple-layer coating
- Excellent corrosion resistance
- Competitive wholesale pricing
- Bulk discounts available
- Trusted supplier serving industrial, commercial, educational, and DIY customers worldwide
