1.25" x 1/4" N52 Neodymium Disc Magnets – Strong Rare Earth Magnets
Quick Facts
| Attribute |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N52 |
| Shape |
Disc |
| Diameter |
1.25" (31.75 mm) |
| Thickness |
1/4" (0.250" / 6.35 mm) |
| Pull Force |
Approximately 40 lbs* |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer |
| Magnetization |
Through Thickness (Axially Magnetized) |
| Br Max |
14,800 Gauss |
| Certification |
ISO Certified |
*Note: Actual pull force may vary depending on the application, contact surface, steel thickness, air gap, and mounting method. Testing in your specific application is recommended.
Quick Answers
| Question |
Answer |
| How strong is this magnet? |
Approximately 40 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. N52 is the highest commercially available neodymium grade and provides greater magnetic strength than N50, N48, N45, N42, N40, N38, and N35 magnets. |
| Can it be used outdoors? |
Yes, but additional sealing is recommended for long-term outdoor or marine environments. |
| What is it commonly used for? |
Industrial fixtures, woodworking, magnetic mounting, robotics, manufacturing, magnetic closures, and DIY projects. |
Product Overview
These 1.25" x 1/4" N52 Neodymium Disc Magnets are engineered to deliver maximum magnetic performance in a versatile disc design. The 1.25-inch diameter provides a broad magnetic contact surface, while the 1/4-inch thickness creates a powerful magnetic field capable of generating approximately 40 pounds of pull force under ideal conditions. They are an excellent choice for applications requiring exceptional holding power in a compact form.
Manufactured from premium N52 grade NdFeB (Neodymium-Iron-Boron), these magnets provide the highest commercially available magnetic strength. They outperform N50, N48, N45, N42, N40, N38, and N35 grades, making them ideal for demanding industrial, engineering, and manufacturing applications where maximum magnetic force is required.
Each magnet is protected by a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, offering outstanding resistance to corrosion, scratches, and chipping while maintaining a smooth, polished finish for long-lasting performance.
What Is a Neodymium Disc Magnet?
A neodymium disc magnet is a permanent NdFeB (Neodymium-Iron-Boron) magnet made from an alloy of neodymium, iron, and boron. Neodymium magnets are the strongest commercially available permanent magnets and are widely used across industrial, commercial, scientific, and consumer applications.
This magnet is magnetized through its 1/4-inch thickness (axially magnetized), placing the north and south poles on the two flat circular faces. Disc magnets are commonly used in magnetic fixtures, woodworking, robotics, manufacturing equipment, electronics, product assemblies, magnetic closures, and custom engineering projects.
Neodymium magnets are also known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.
How Strong Is This Magnet?
This 1.25" x 1/4" N52 disc magnet provides approximately 40 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.
Actual holding force depends on several factors, including:
- Surface material
- Steel thickness
- Contact area
- Air gap
- Mounting method
- Environmental conditions
For maximum holding performance, use this magnet against a clean, flat, thick steel surface.
Note: Pull force values are estimates based on ideal laboratory conditions. Actual performance should always be verified for your intended application.
Technical Specifications
| Specification |
Value |
| Magnet Type |
Neodymium Rare Earth Disc Magnet |
| Grade |
N52 |
| Shape |
Disc |
| Diameter |
1.25" (31.75 mm) |
| Thickness |
1/4" (0.250" / 6.35 mm) |
| Pull Force |
Approximately 40 lbs* |
| Material |
NdFeB (Neodymium-Iron-Boron) |
| Coating |
Nickel-Copper-Nickel Triple Layer |
| Magnetization |
Through Thickness (Axially Magnetized) |
| Br Max |
14,800 Gauss |
| 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 |
| N52 |
Maximum |
High-performance |
Disc Magnet Size Comparison
| Size |
Typical Use |
| Small |
Crafts & sensors |
| Medium |
General holding |
| Large (1.25" × 1/4") |
Industrial mounting |
Applications by Industry
| Industry |
Common Uses |
| Manufacturing |
Fixtures & jigs |
| Robotics |
Sensors & positioning |
| Electronics |
Components |
| Education |
STEM projects |
| DIY |
Home projects |
| Woodworking |
Magnetic catches and hidden fasteners |
Common Questions About This Magnet
What is the pull force?
This magnet provides approximately 40 pounds of pull force under ideal testing conditions.
Is N52 stronger than N35 magnets?
Yes. N52 is the strongest commercially available neodymium magnet grade and delivers significantly greater magnetic strength than N35 magnets of the same dimensions.
Can it rust?
The Nickel-Copper-Nickel triple-layer coating helps protect against corrosion. If the coating becomes damaged and moisture reaches the magnet, corrosion may occur over time.
Can it be used outdoors?
Yes. However, additional sealing is recommended for prolonged outdoor, marine, or high-humidity environments.
What direction is it magnetized?
This magnet is magnetized through its 1/4-inch thickness (axially magnetized), 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?
- Premium NdFeB rare earth magnets
- ISO-certified quality
- Highest commercially available N52 magnetic grade
- Durable Nickel-Copper-Nickel triple-layer coating
- Consistent magnetic performance
- Precision manufacturing
- Competitive pricing
- Bulk discounts available
- Fast shipping
- Trusted by manufacturers, engineers, educators, and DIY professionals worldwide
