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SKU: ND004

1/8 x 1/4 inch Small Neodymium Cylinder Magnets N42

$ 0.16
$ 0.16

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1/8" x 1/4" N42 Neodymium Cylinder Magnets – Strong Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Cylinder Magnet
Grade N42
Shape Cylinder
Diameter 1/8" (3.18 mm)
Length 1/4" (6.35 mm)
Pull Force Compact precision holding force*
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni) Triple Layer
Magnetization Through Length (Axially Magnetized)
Br Max 13,200 Gauss
Certification ISO Certified

*Note: Actual pull force depends 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? Provides reliable magnetic holding power for compact precision applications.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Is this stronger than N35 magnets? Yes. N42 delivers 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? Hidden magnetic mounts, alignment pins, woodworking, electronics, product assemblies, DIY projects, and precision engineering.

Product Overview

These 1/8" x 1/4" N42 Neodymium Cylinder Magnets are engineered for applications that require maximum holding power in an extremely compact size. The 1/8-inch diameter fits neatly into small drilled holes and confined spaces, while the 1/4-inch length produces a deeper magnetic field and stronger holding force than shorter cylinder magnets of the same diameter. Their slim profile makes them ideal for concealed mounting, precision alignment, and embedded magnetic solutions.

Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these rare earth magnets deliver significantly greater magnetic strength than N40, N38, and N35 grades while remaining easy to install and position accurately. They are ideal for woodworking, electronics, product development, engineering prototypes, hobby projects, and custom manufacturing where dependable magnetic performance is essential.

Each magnet features a durable Nickel-Copper-Nickel (Ni-Cu-Ni) triple-layer coating, providing excellent resistance to corrosion, scratches, and chipping while maintaining a smooth, polished finish for long-lasting performance.

What Is a Neodymium Cylinder Magnet?

A neodymium cylinder magnet is a permanent NdFeB (Neodymium-Iron-Boron) magnet manufactured from an alloy of neodymium, iron, and boron. Cylinder magnets provide a concentrated magnetic field in a compact cylindrical shape, making them ideal for applications requiring precision positioning, concealed mounting, and deep magnetic penetration.

This magnet is magnetized through its 1/4-inch length (axially magnetized), placing the north and south poles on the two circular ends. This orientation delivers maximum holding force while allowing the magnet to fit easily into drilled holes, narrow channels, and compact assemblies.

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

How Strong Is This Magnet?

Although compact in size, this 1/8" x 1/4" N42 cylinder magnet delivers impressive magnetic performance for precision applications. Its extended length creates a deeper magnetic field than shorter cylinder magnets of the same diameter, making it well suited for concealed mounting and alignment tasks.

Actual holding force depends on several factors, including:

  • Surface material
  • Steel thickness
  • Contact area
  • Air gap
  • Mounting method
  • Environmental conditions

The additional length improves magnetic reach while maintaining a compact footprint for applications where space is limited.

Technical Specifications

Specification Value
Magnet Type Neodymium Rare Earth Cylinder Magnet
Grade N42
Shape Cylinder
Diameter 1/8" (3.18 mm)
Length 1/4" (6.35 mm)
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Through Length (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

Cylinder Magnet Size Comparison

Size Typical Use
Small Crafts, sensors & miniature assemblies
Medium General holding & positioning
Large Industrial mounting & heavy-duty fixtures

Applications by Industry

Industry Common Uses
Manufacturing Precision fixtures & assemblies
Robotics Alignment & positioning
Electronics Sensors & miniature components
Education STEM projects
DIY Home improvement & custom builds
Woodworking Hidden magnetic mounts

Common Questions About This Magnet

What is the pull force?

This compact cylinder magnet provides dependable holding power for precision and embedded applications. Performance varies depending on the installation and contact surface.

Is N42 stronger than N35 magnets?

Yes. N42 delivers significantly greater magnetic strength and holding power than N35 magnets of the same dimensions.

Can it rust?

The Nickel-Copper-Nickel triple-layer coating provides excellent protection against corrosion. If the coating becomes damaged and moisture reaches the magnet, corrosion may eventually occur.

Can it be used outdoors?

Yes. However, additional sealing is recommended for prolonged outdoor exposure, marine environments, or high-humidity conditions.

What direction is it magnetized?

This magnet is magnetized through its 1/4-inch length (axially magnetized), with the north and south poles located on the two circular ends.

Do you offer bulk discounts?

Yes. Contact Super Magnet Store for wholesale pricing and volume discounts on OEM, industrial, educational, and reseller orders.

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
  • Excellent corrosion resistance
  • Precision manufacturing
  • Bulk discounts available

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