N45 Neodymium Disc Magnet 3/8" x 1/10" Black Epoxy Coated Rare Earth Magnet
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N45 |
| Shape |
Disc |
| Diameter |
3/8 inch (0.375") |
| Thickness |
1/10 inch (0.100") |
| Pull Force |
Approx. 4 lbs or more |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Black Epoxy-Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Br Max |
13,800 Gauss |
| Certification |
ISO Certified |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 4 lbs or more 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. N45 provides greater magnetic strength than N35, N38, N40, and N42 magnets of the same size. |
| Can it be used outdoors? |
Yes. The Black Epoxy-Nickel-Copper-Nickel coating offers enhanced protection against moisture and corrosion, making it an excellent choice for humid or outdoor environments. |
| What is it commonly used for? |
Magnetic closures, woodworking, electronics, crafts, displays, embedded mounting, organization, and DIY projects requiring enhanced corrosion resistance. |
Product Overview
The N45 Neodymium Disc Magnet 3/8" x 1/10" combines strong magnetic performance with enhanced environmental protection in a compact, versatile design. Its 3/8-inch diameter provides excellent surface contact for a secure grip, while the 1/10-inch thickness generates a deeper magnetic field and greater holding power than ultra-thin disc magnets without increasing the overall footprint.
Manufactured from premium N45 grade NdFeB (Neodymium-Iron-Boron), these rare earth magnets provide dependable holding power for woodworking, magnetic closures, electronics, fixtures, product assembly, displays, and DIY projects. The balanced dimensions make them ideal for applications where both compact size and reliable strength are important.
Each magnet is protected by a durable Black Epoxy-Nickel-Copper-Nickel triple-layer coating. The nickel-copper-nickel base provides structural durability, while the outer black epoxy layer adds extra resistance to moisture, chemicals, abrasion, and corrosion. Compared to standard nickel-coated magnets, this coating system offers improved durability in demanding environments and applications involving frequent handling.
What Is a Neodymium Disc Magnet?
A neodymium disc magnet is a circular permanent magnet manufactured from neodymium, iron, and boron (NdFeB). These rare earth magnets provide exceptional magnetic strength while maintaining a compact profile, making them ideal for applications where space is limited but reliable holding power is essential.
Disc magnets are commonly used in woodworking, electronics, manufacturing, magnetic closures, displays, sensors, crafts, fixtures, and embedded assemblies because they provide strong magnetic performance in a simple, easy-to-install design.
How Strong Is This Magnet?
This N45 neodymium disc magnet generates approximately 4 pounds or more of pull force under ideal conditions against a thick, flat steel surface. Its 3/8-inch diameter provides generous contact area, while the 1/10-inch thickness creates a stronger magnetic field than thinner disc magnets, resulting in dependable holding performance.
With a Br Max of 13,800 Gauss, this magnet delivers excellent magnetic strength while the Black Epoxy-Nickel-Copper-Nickel coating provides superior protection against corrosion and wear.
Technical Specifications
| Property |
Specification |
| Material |
Neodymium (NdFeB) |
| Grade |
N45 |
| Shape |
Disc |
| Diameter |
0.375 inch (3/8") |
| Thickness |
0.100 inch (1/10") |
| Br Max |
13,800 Gauss |
| Pull Force |
Approx. 4 lbs or more |
| Coating |
Black Epoxy-Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Certification |
ISO Certified |
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General purpose |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial |
| N42 |
Higher |
Engineering |
| N45 |
Very High |
Electronics, woodworking, precision assemblies |
| N52 |
Maximum |
High-performance engineering and manufacturing |
Disc Magnet Size Comparison
| Size |
Typical Use |
| Small |
Crafts & sensors |
| Medium |
General holding |
| Large |
Industrial mounting |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures, positioning, assembly tooling |
| Robotics |
Sensors and positioning systems |
| Electronics |
Components, enclosures, embedded devices |
| Education |
STEM projects and demonstrations |
| DIY |
Woodworking, crafts, magnetic closures, organization, models |
Common Questions About This Magnet
What is the pull force?
This magnet provides approximately 4 pounds or more of pull force under ideal conditions against a thick steel surface.
Is N45 stronger than N35?
Yes. N45 magnets provide noticeably greater magnetic strength than N35 magnets while remaining an excellent balance of performance and cost.
Can it rust?
The Black Epoxy-Nickel-Copper-Nickel coating provides enhanced resistance to moisture, oxidation, and corrosion compared to standard nickel-coated magnets. If the coating is deeply damaged, however, the neodymium core can eventually corrode.
Can it be used outdoors?
Yes. The black epoxy outer coating makes this magnet well suited for humid, outdoor, and higher-moisture environments where additional corrosion resistance is beneficial.
What direction is it magnetized?
This magnet is magnetized through its thickness, with the north and south poles located on the two flat circular faces.
Do you offer bulk discounts?
Yes. Super Magnet Store offers competitive wholesale pricing and quantity discounts for manufacturers, distributors, educational institutions, retailers, and OEM customers.
Why Buy From Super Magnet Store?
-
Premium NdFeB rare earth magnets
-
ISO-certified quality
-
High-performance N45 magnetic grade
-
Durable Black Epoxy-Nickel-Copper-Nickel triple-layer coating
-
Enhanced corrosion and moisture resistance
-
Consistent magnetic performance
-
Precision manufacturing tolerances
-
Bulk discounts available
-
Fast shipping from a trusted magnet supplier
