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SKU: ND032-2

N42 Rare Earth Neodymium Disc Super Strong Magnets 1/2 x 0.2 inch

$ 1.09
$ 1.09

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1/2" x 2/10" N42 Neodymium Cylinder Magnets – Strong Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Cylinder Magnet
Grade N42
Shape Cylinder
Diameter 1/2" (12.7 mm)
Height 2/10" (0.200" / 5.08 mm)
Pull Force Approximately 12 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer
Magnetization Through Thickness
Br Max 13,200 Gauss
Certification ISO Certified

*Note: Actual pull force may vary depending on the application, contact surface, and mounting method. Testing in your specific application is recommended.

Quick Answers

Question Answer
How strong is this magnet? Approximately 12 lbs of pull force under ideal conditions.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Is N42 stronger than N35 magnets? Yes. N42 provides greater magnetic strength than N35, N38, and N40 magnets of the same size.
Can it be used outdoors? Yes, but additional sealing is recommended for long-term outdoor or humid environments.
What is it commonly used for? Magnetic fixtures, woodworking, engineering, robotics, product assemblies, industrial equipment, and DIY projects.

Product Overview

These 1/2" x 2/10" N42 Neodymium Cylinder Magnets combine dependable holding power with a compact cylindrical design. The 1/2-inch diameter provides excellent surface contact, while the 0.200-inch height creates a deeper magnetic field than thinner magnets, making them ideal for applications requiring both reliable strength and precise positioning.

Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these rare earth magnets deliver an excellent balance of performance, durability, and value. Whether used in industrial fixtures, woodworking, robotics, product development, or custom projects, they provide consistent magnetic performance you can rely on.

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 metallic finish.

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. Cylinder magnets provide a concentrated magnetic field with greater magnetic depth than flat disc magnets of the same diameter, making them ideal for embedded installations, positioning systems, sensors, and magnetic fixtures.

These magnets are magnetized through their thickness (height), placing the north and south poles on the two flat circular ends for maximum magnetic performance.

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

How Strong Is This Magnet?

This 1/2" x 2/10" N42 cylinder magnet provides approximately 12 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.

Actual pull 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 testing conditions. Actual performance should always be verified in your intended application.

Technical Specifications

Specification Value
Magnet Type Neodymium Rare Earth Cylinder Magnet
Grade N42
Shape Cylinder
Diameter 1/2" (12.7 mm)
Height 2/10" (0.200" / 5.08 mm)
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness
Pull Force Approximately 12 lbs*
Br Max 13,200 Gauss
Certification ISO Certified

Nickel-Copper-Nickel Triple-Layer Coating

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

Benefits

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

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General-purpose magnets
N38 Moderate Consumer products
N40 High Industrial applications
N42 Higher Engineering, manufacturing, robotics
N52 Maximum High-performance applications

Cylinder Magnet Size Comparison

Size Typical Use
Small Sensors, electronics, crafts
1/2" x 2/10" Magnetic fixtures, embedded mounting, woodworking, product assemblies
Large Heavy-duty industrial applications

Applications by Industry

Industry Common Uses
Manufacturing Fixtures, jigs, magnetic assemblies
Engineering Product development and prototyping
Robotics Positioning systems and magnetic attachments
Electronics Components and magnetic assemblies
Woodworking Hidden magnetic mounts and closures
DIY & Makers Home improvement, crafts, custom builds

Common Questions About This Magnet

What is the pull force?

This magnet provides approximately 12 pounds of pull force under ideal testing conditions.

Is N42 stronger than N35 magnets?

Yes. N42 offers significantly greater magnetic strength than N35 magnets of the same size.

Can it 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. For long-term outdoor or marine applications, additional sealing is recommended.

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
  • High-strength N42 grade
  • Consistent magnetic performance
  • Durable Nickel-Copper-Nickel triple-layer coating
  • Excellent corrosion resistance
  • Precision manufacturing for reliable performance
  • Competitive pricing and wholesale discounts
  • Trusted by manufacturers, engineers, educators, and DIY makers worldwide


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