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3/4" x 3/8" N52 Neodymium Disc Magnets – Strong Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N52
Shape Disc
Diameter 3/4" (0.750" / 19.05 mm)
Thickness 3/8" (0.375" / 9.53 mm)
Pull Force Approximately 35 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 35 lbs of pull force under ideal conditions.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Is N52 stronger than N42 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 exposure or humid environments.
What is it commonly used for? Heavy-duty magnetic fixtures, woodworking, robotics, engineering, product assemblies, industrial equipment, and high-performance DIY projects.

Product Overview

These 3/4" x 3/8" N52 Neodymium Disc Magnets deliver maximum magnetic performance in a compact, heavy-duty design. The 3/4-inch diameter provides a large contact surface for exceptional holding power, while the 3/8-inch thickness creates a deep magnetic field that produces substantially greater holding force than thinner disc magnets.

Manufactured from premium N52 grade NdFeB (Neodymium-Iron-Boron), these magnets provide the highest commercially available magnetic strength for demanding industrial, engineering, and commercial applications. They are ideal for magnetic fixtures, robotics, woodworking, product assemblies, manufacturing, and custom projects where maximum holding power and reliability are essential.

Each magnet features a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating that provides outstanding resistance to corrosion, scratches, and chipping while maintaining a smooth, polished metallic finish.


What Is a Neodymium Disc Magnet?

A neodymium disc magnet is a permanent magnet manufactured from NdFeB (Neodymium-Iron-Boron), the strongest commercially available magnetic material. Disc magnets deliver exceptional magnetic force while maintaining a compact profile, making them one of the most versatile magnet shapes available.

These magnets are magnetized through their thickness, placing the north and south poles on the two flat circular faces. They are widely used in manufacturing, robotics, woodworking, electronics, product assemblies, magnetic closures, fixtures, and countless industrial and DIY applications.

Neodymium magnets are also commonly known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.


How Strong Is This Magnet?

This 3/4" x 3/8" N52 disc magnet provides approximately 35 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.

Actual holding force may vary depending 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 3/4" (0.750" / 19.05 mm)
Thickness 3/8" (0.375" / 9.53 mm)
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness
Pull Force Approximately 35 lbs
Br Max 14,800 Gauss
Certification ISO Certified

Nickel-Copper-Nickel Triple-Layer Coating

Every magnet features a Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating for superior durability and corrosion resistance.

Benefits

  • Excellent scratch resistance
  • Superior resistance to chipping and cracking
  • Outstanding corrosion protection
  • Smooth, polished metallic finish
  • Long-lasting durability for industrial, commercial, and everyday applications

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General-purpose magnets
N38 Moderate Consumer products
N40 High Industrial applications
N42 Higher Engineering and manufacturing
N48 Very High Precision industrial applications
N50 Extremely High High-performance assemblies
N52 Maximum Maximum-strength industrial, engineering, robotics, and manufacturing applications

N52 is the highest commercially available neodymium magnet grade, delivering the greatest magnetic energy and holding power available in standard NdFeB magnets.


Disc Magnet Size Comparison

Size Typical Use
Small Crafts, sensors, miniature electronics
Medium General holding and magnetic closures
3/4" x 3/8" Heavy-duty fixtures, robotics, woodworking, industrial assemblies
Large Industrial mounting and fabrication

Applications by Industry

Industry Common Uses
Manufacturing Fixtures, jigs, magnetic assemblies
Engineering Product development and prototyping
Robotics Positioning systems, magnetic attachments, automation
Electronics Components and magnetic assemblies
Woodworking Hidden magnetic mounts and heavy-duty closures
DIY & Makers Custom builds, workshop organization, home improvement

Common Questions About This Magnet

What is the pull force?

This magnet provides approximately 35 pounds of pull force under ideal testing conditions.

Is N52 stronger than N42 magnets?

Yes. N52 delivers significantly greater magnetic strength and energy than N42 magnets of the same dimensions.

Can this magnet rust?

Like all neodymium magnets, it contains iron and may corrode if the protective coating becomes damaged or exposed to moisture for extended periods.

Can it be used outdoors?

Yes. However, additional sealing is recommended for long-term outdoor or marine applications.

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?

  • Premium N52 NdFeB rare earth magnets
  • ISO-certified quality
  • Maximum-strength N52 grade
  • Durable Nickel-Copper-Nickel triple-layer coating
  • Excellent corrosion resistance
  • Consistent magnetic performance
  • Precision manufacturing for reliable results
  • Competitive wholesale pricing
  • Bulk discounts available
  • Trusted by manufacturers, engineers, educators, and DIY makers worldwide


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Total price$ 94.36

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