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SKU: NB018-N45

Magnets N45 1/2 in x 1/2 in x 1/8 in Neodymium Block

$ 1.05
$ 1.05

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Rare Earth Magnets N45 Grade 1/2" x 1/2" x 1/8" Thick Neodymium NdFeB Block Magnet

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Block Magnet
Grade N45
Shape Block
Length 1/2" (12.7 mm)
Width 1/2" (12.7 mm)
Height 1/8" (3.18 mm)
Pull Force Approx. 7.7 lbs
Material NdFeB (Neodymium-Iron-Boron)
Coating Nickel-Copper-Nickel (Ni-Cu-Ni)
Magnetization Through Thickness
Br Max 13,800 Gauss
Certification ISO Certified

Quick Answers

Question Answer
How strong is this magnet? Approximately 7.7 lbs of pull force under ideal conditions.
Is N45 stronger than N35? Yes. N45 provides substantially greater magnetic strength than N35, N38, N40, and N42 grades.
What is this magnet made of? NdFeB rare earth material.
Can this magnet rust? The triple-layer nickel coating provides excellent corrosion resistance, but damaged coatings or prolonged moisture exposure may eventually lead to corrosion.
What is it commonly used for? Manufacturing fixtures, engineering projects, magnetic assemblies, electronics, robotics, product development, and DIY applications.

Product Overview

Rare earth neodymium magnets are the world's strongest commercially available permanent magnets. Applied Magnets offers premium-quality neodymium NdFeB magnets engineered for exceptional performance, reliability, and value. Manufactured using advanced production techniques and strict quality controls, our magnets deliver consistent magnetic strength for professional and personal applications.

This N45 neodymium block magnet measures 1/2" x 1/2" x 1/8" and generates approximately 7.7 pounds of pull force. Made from neodymium, iron, boron, and other minor elements, it provides stronger magnetic performance than lower grades such as N35, N38, N40, and N42 while maintaining compact dimensions.

Each magnet is protected by a durable Nickel-Copper-Nickel triple-layer coating that enhances corrosion resistance and surface durability. Manufactured under ISO-certified standards, these magnets offer dependable performance for industrial, engineering, manufacturing, and hobby applications.

What Is a Neodymium Block Magnet?

A neodymium block magnet is a rectangular or square-shaped rare earth permanent magnet made from neodymium, iron, and boron (NdFeB). These magnets provide exceptional magnetic strength relative to their size and are commonly used in industrial equipment, engineering prototypes, manufacturing fixtures, electronics, and custom magnetic assemblies.

How Strong Is This Magnet?

This N45 neodymium block magnet delivers approximately 7.7 pounds of pull force under ideal conditions. Actual holding strength depends on factors such as steel thickness, surface flatness, air gaps, temperature, and mounting conditions. With a BrMax rating of 13,800 Gauss, this magnet provides powerful performance in a compact package and exceeds the strength of N35, N38, N40, and N42 magnets of the same dimensions.

Technical Specifications

Specification Value
Product Name N45 Neodymium Block Magnet
Material Neodymium Iron Boron (NdFeB)
Grade N45
Shape Block
Length 1/2" (12.7 mm)
Width 1/2" (12.7 mm)
Thickness 1/8" (3.18 mm)
Coating Nickel-Copper-Nickel Triple Layer
Magnetization Direction Through Thickness
Pull Force Approx. 7.7 lbs
Br Max 13,800 Gauss
Certification ISO Certified
Operating Temperature Up to 176°F (80°C)

Note: Pull force values are estimates only and should be tested for your specific application.

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General purpose
N38 Moderate Consumer products
N40 High Industrial
N42 Higher Engineering
N45 Premium Advanced industrial applications
N52 Maximum High-performance

Block Magnet Size Comparison

Size Typical Applications
Small Blocks Electronics
Medium Blocks Fixtures
Large Blocks Industrial assemblies

Applications by Industry

Industry Common Uses
Manufacturing Fixtures & tooling
Engineering Product development
Robotics Motion systems
Electronics Assemblies & sensors
Education STEM projects
DIY Custom builds

Common Questions About This Magnet

How much weight can this magnet hold?

Under ideal conditions, this magnet provides approximately 7.7 lbs of pull force. Actual holding capacity will vary based on the application and mounting surface.

Is N45 stronger than N42?

Yes. N45 magnets offer greater magnetic energy and holding strength than N42 magnets of the same size.

Can this magnet be used outdoors?

The nickel coating offers good corrosion resistance, but prolonged outdoor exposure may require additional protective measures.

Can it rust?

The Nickel-Copper-Nickel coating helps prevent corrosion; however, damaged coatings or extended exposure to moisture can eventually lead to rust.

What direction is it magnetized?

This magnet is magnetized through the thickness (1/8"), with the north and south poles located on the large 1/2" x 1/2" faces.

Do you offer wholesale pricing?

Yes. Contact Applied Magnets for volume discounts and wholesale pricing on rare earth magnets.

Why Buy From Applied Magnets?

  • Premium NdFeB rare earth magnets

  • Consistent magnetic performance

  • ISO-certified manufacturing

  • Competitive pricing

  • Wholesale discounts available

  • Superior quality and performance guaranteed

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Total price$ 4.81

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