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SKU: ND064-8

Rare Earth Magnets 1.25 in x 1.25 in Neodymium Cylinder N42

$ 43.00
$ 43.00

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1.25" x 1.25" N42 Neodymium Disc Magnets – Strong Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N42
Shape Disc
Diameter 1.25" (31.75 mm)
Thickness 1.25" (31.75 mm)
Pull Force Approximately 120 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer
Magnetization Through Thickness (Axially Magnetized)
Br Max 13,200 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 120 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. N42 provides greater magnetic strength than N40, N38, and N35 magnets of the same size.
Can it be used outdoors? Yes, but additional sealing is recommended for long-term outdoor or marine environments.
What is it commonly used for? Heavy-duty magnetic fixtures, industrial equipment, robotics, magnetic separators, manufacturing, engineering projects, and custom fabrication.

Product Overview

These 1.25" x 1.25" N42 Neodymium Disc Magnets are engineered for applications requiring exceptional holding power and deep magnetic penetration. With a 1.25-inch diameter and an equally substantial 1.25-inch thickness, these oversized disc magnets generate an impressive 120 pounds of pull force, making them ideal for industrial, commercial, and engineering applications where maximum holding strength is essential.

Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these magnets deliver significantly greater magnetic performance than N40, N38, and N35 grades. Their thick profile creates a powerful magnetic field that performs exceptionally well in magnetic fixtures, heavy-duty holding systems, manufacturing equipment, robotics, and custom machinery.

Each magnet is finished with a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, providing excellent resistance to corrosion, scratches, and chipping while maintaining a smooth, polished appearance. Manufactured in ISO-certified facilities, these magnets are built to deliver consistent performance and long service life.

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 throughout industrial, commercial, scientific, and consumer applications.

This magnet is magnetized through its 1.25-inch thickness (axially magnetized), placing the north and south poles on the two flat circular faces. This magnetic orientation provides maximum holding force against steel surfaces and makes disc magnets ideal for heavy-duty fixtures, magnetic separators, industrial tooling, robotics, and engineering applications.

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

How Strong Is This Magnet?

This 1.25" x 1.25" N42 disc magnet delivers approximately 120 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 N42
Shape Disc
Diameter 1.25" (31.75 mm)
Thickness 1.25" (31.75 mm)
Pull Force Approximately 120 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Thickness (Axially Magnetized)
Br Max 13,200 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" × 1.25") Industrial mounting, heavy-duty fixtures, magnetic separators

Applications by Industry

Industry Common Uses
Manufacturing Fixtures & jigs
Robotics Sensors & positioning
Electronics Components
Education STEM projects
DIY Home projects
Industrial Magnetic separators, heavy-duty holding systems

Common Questions About This Magnet

What is the pull force?

This magnet provides approximately 120 pounds of pull force under ideal testing conditions.

Is N42 stronger than N35 magnets?

Yes. N42 offers significantly greater magnetic strength and holding power 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 1.25-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.

Safety Notice: Due to their extremely strong magnetic force, these magnets can cause serious pinch injuries and may damage electronic devices. Always review neodymium magnet safety guidelines before handling or installation.

Why Buy From Super Magnet Store?

  • Premium NdFeB rare earth magnets
  • ISO-certified quality
  • High-performance N42 magnetic grade
  • Durable Nickel-Copper-Nickel triple-layer coating
  • Consistent magnetic performance
  • Precision manufacturing
  • Excellent corrosion resistance
  • Competitive pricing
  • Bulk discounts available
  • Trusted by manufacturers, engineers, educators, and DIY professionals worldwide


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