3/8" x 3/16" N52 Neodymium Disc Magnets – Strong Rare Earth Magnets
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N52 |
| Shape |
Disc |
| Diameter |
3/8" (0.375") |
| Thickness |
3/16" (0.1875") |
| Pull Force |
Over 8.8 lbs |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer |
| Magnetization |
Through Thickness |
| Br Max |
14,800 Gauss |
| Certification |
ISO Certified |
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 8.8 lbs of pull force, making it exceptionally strong for its compact size. |
| What is this magnet made of? |
NdFeB (Neodymium-Iron-Boron) rare earth material. |
| Is this stronger than N35 magnets? |
Yes. N52 is the strongest commercially available neodymium grade and provides significantly greater magnetic strength than N35. |
| Can it be used outdoors? |
Yes, but prolonged exposure to moisture may eventually cause corrosion. For permanent outdoor applications, additional protective sealing is recommended. |
| What is it commonly used for? |
Heavy-duty holding, magnetic closures, woodworking, embedded mounting, crafts, organizing tools, and industrial projects. |
Product Overview
These 3/8" x 3/16" N52 Neodymium Disc Magnets are engineered to deliver outstanding magnetic strength in a compact yet thicker profile. The 3/8-inch diameter provides an excellent contact surface, while the substantial 3/16-inch thickness produces significantly greater holding power than thinner disc magnets of the same diameter.
Manufactured from premium N52 rare earth neodymium, these magnets are ideal for demanding applications requiring maximum performance in a small package. Whether used for magnetic closures, woodworking, fixtures, DIY projects, or industrial assemblies, they provide reliable and consistent holding force.
Each magnet is protected by a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, offering excellent resistance to scratching, chipping, and everyday wear while providing a smooth, polished finish.
What Is a Neodymium Disc Magnet?
A neodymium disc magnet is a circular permanent magnet manufactured from NdFeB (Neodymium-Iron-Boron), the strongest commercially available magnetic material. Disc magnets are magnetized through their thickness, meaning the north and south poles are located on the flat circular faces, producing a concentrated magnetic field for maximum holding performance.
Due to their compact size and exceptional strength, neodymium disc magnets are widely used in manufacturing, electronics, woodworking, robotics, automotive applications, and countless DIY projects.
How Strong Is This Magnet?
Despite measuring only 3/8 inch in diameter, this magnet delivers an impressive pull force of over 8.8 pounds under ideal conditions using thick, clean steel.
Its thicker 3/16-inch profile stores more magnetic energy than thinner discs of the same diameter, making it an excellent choice for applications where additional holding strength is required without increasing the magnet's footprint.
Technical Specifications
| Specification |
Value |
| Magnet Type |
Neodymium Rare Earth |
| Grade |
N52 |
| Shape |
Disc |
| Diameter |
3/8" |
| Thickness |
3/16" |
| Material |
NdFeB |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness |
| Pull Force |
Over 8.8 lbs |
| Br Max |
14,800 Gauss |
| Certification |
ISO Certified |
Nickel-Copper-Nickel vs. Epoxy Coating
Our magnets feature a Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, which provides significantly better durability than a standard epoxy coating.
Nickel-Copper-Nickel Triple Coating Benefits
-
Superior scratch resistance
-
Excellent chip and crack resistance
-
Greater durability during repeated use
-
Bright, smooth metallic finish
-
Better long-term corrosion protection under normal conditions
Epoxy Single-Layer Coating
While epoxy coatings provide a protective plastic layer, they are generally thinner and can wear more quickly. Once scratched or damaged, the protective barrier may be compromised. Nickel triple-layer plating offers improved resistance to chipping and mechanical wear, making it the preferred choice for demanding applications.
Magnet Grade Comparison
| Grade |
Relative Strength |
Typical Applications |
| N35 |
Standard |
General purpose |
| N38 |
Moderate |
Consumer products |
| N40 |
High |
Industrial |
| N42 |
Higher |
Engineering |
| N52 |
Maximum |
High-performance applications |
Disc Magnet Size Comparison
| Size |
Typical Use |
| Small |
Crafts, sensors, mini electronics |
| Medium |
General holding, closures, woodworking |
| 3/8" x 3/16" |
Heavy-duty holding, fixtures, embedded mounting |
| Large |
Industrial mounting and fabrication |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures, jigs, holding devices |
| Robotics |
Sensors, positioning systems |
| Electronics |
Components and assemblies |
| Education |
STEM experiments and demonstrations |
| DIY |
Woodworking, crafts, home organization |
Common Questions About This Magnet
What is the pull force?
This magnet produces approximately 8.8 pounds of pull force under ideal conditions.
Is N52 stronger than N35?
Yes. N52 provides significantly greater magnetic energy and holding strength than N35 magnets of the same size.
Can it rust?
Neodymium magnets contain iron and can corrode if the protective coating becomes damaged or if exposed to harsh environments for extended periods.
Can it be used outdoors?
Yes, but for long-term outdoor or marine applications, additional protective sealing is recommended to maximize corrosion resistance.
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. Contact super magnet store for wholesale pricing and volume discounts on large quantity orders.
Why Buy From Super Magnet Store?
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Premium NdFeB rare earth magnets
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ISO-certified quality
-
Consistent magnetic performance
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Powerful N52 grade available
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Durable Nickel-Copper-Nickel triple-layer coating
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Competitive wholesale pricing
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Bulk discounts available
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Trusted supplier serving industrial and commercial customers worldwide
