Best N40 Industrial Magnets of 2025

Kenneth Collin Avatar
Kenneth Collin
Last Updated: 8 Feb 2025

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N40 industrial magnets are powerful magnets that are widely used in various industries for their excellent magnetic properties. These magnets are made of neodymium, iron, and boron, which makes them one of the strongest permanent magnets available in the market. They are used in a range of applications, including motors, generators, sensors, and even in the medical industry. N40 industrial magnets are highly reliable and can withstand high temperatures, making them ideal for use in harsh environments. Their small size and high magnetic strength make them a popular choice for many applications.

At a Glance: Our Top Picks

POWER MAGNET STORE N40 Neodymium Magnets Cover #TOP 1
POWER MAGNET STORE N40 Neodymium Magnets
ftb score rating icon 9.8
15 x 100 mm Neodymium Cylinder Magnet Cover #TOP 2
15 x 100 mm Neodymium Cylinder Magnet
ftb score rating icon 9.7
Spider Magnetics N40 Neodymium Craft Magnets Cover #TOP 3
Spider Magnetics N40 Neodymium Craft Magnets
ftb score rating icon 9.5

Top 4 N40 Industrial Magnets

#TOP 1

POWER MAGNET STORE N40 Neodymium Magnets

MD20x1N40-10
Silver
POWER MAGNET STORE N40 Neodymium Magnets Cover
POWER MAGNET STORE 10 of 20mm x 1mm N40 1.1Kg Pull Very Thin Neodymium Magnets Super Powerful Rare Earth Magnetic Disc

The POWER MAGNET STORE Neodymium Magnets are incredibly strong, featuring a vertical pull of 1.1Kg when flush against a mild steel surface. This strength allows you to securely hold items in place, providing peace of mind for your projects. The magnets are designed with safety in mind, as they are not suitable for children or individuals with pacemakers. Additionally, their triple plating with Nickel-Copper-Nickel ensures excellent corrosion resistance, making them durable for long-term use. Always remember to heed the safety advice provided to ensure safe handling.

What We Like
Very strong pull force
Corrosion-resistant coating
Safe for most users
Versatile for various applications

15 x 100 mm Neodymium Cylinder Magnet

Silver
15 x 100 mm Neodymium Cylinder Magnet Cover
Magnetic Rod Round Cylinder Magnet Ø 15 x 100 mm Neodymium N40 (NdFeB) Nickel - Force 10kg - Super Strong Cylindrical Magnets

The Magnosphere Neodymium Magnet is a powerful cylindrical magnet measuring 15 x 100 mm. Made from Neodymium N40, it offers exceptional strength, providing a magnetic force of 10 kg, making it ideal for various applications. Its nickel coating not only protects against corrosion but also enhances durability. With an axial magnetization, this magnet is easy to incorporate into projects or products where a strong, reliable hold is required. Plus, it can withstand temperatures up to 80 °C, ensuring performance in a range of environments.

What We Like
Super strong magnetic force
Durable nickel coating
High-temperature resistance
Compact size for easy use
#TOP 3

Spider Magnetics N40 Neodymium Craft Magnets

NEMAG/B0028
Spider Magnetics N40 Neodymium Craft Magnets Cover
Spider Magnetics Ltd 50 Small Magnets 5X5X2 mm N40 Grade Neodymium Square Craft Blocks 5mm X 5mm X 2mm

The Spider Magnetics Neodymium Magnets are high-grade N40 neodymium magnets designed for various projects. With a vertical pull of 678g when flush against a mild steel surface, these magnets provide strong holding power, ensuring your items stay securely in place. The North and south poles are conveniently located on the larger flat faces, making them easy to use in precise applications. Additionally, the triple plated Nickel-Copper-Nickel finish offers excellent corrosion resistance, ensuring durability and longevity in your crafts.

What We Like
Strong holding power
Easy to position
Corrosion resistant
Versatile for various projects
#TOP 4

BKSAI Strong Double-Sided Adhesive Magnets

CT001-12P
N40 - 12PCS
BKSAI Strong Double-Sided Adhesive Magnets Cover
BKSAI Magnets Strong with Double-Sided Adhesive Powerful Permanent Rare Earth Magnets (N40-12PCS)

The BKSAI Rare Earth Magnets are a powerful solution for your adhesive needs. Featuring a strong double-sided adhesive, these magnets securely attach to various surfaces, making them ideal for crafts, home organisation, or DIY projects. Their permanent nature ensures long-lasting use, so you won't need to worry about replacements frequently. As rare earth magnets, they provide exceptional strength in a compact size, giving you the convenience of powerful holding without taking up much space.

What We Like
Strong adhesive for secure hold
Permanent and long-lasting use
Compact size with high strength
Versatile for various applications
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What does N40 magnet mean?

2. What does the N35, N40, N42, N45, N48, N50, N52 grade mean? Neodymium magnets are graded by the maximum strength they can be magnetized to. The higher the number the stronger the magnet is, however the higher the number the more brittle the magnet becomes as well.

2. What are the strongest commercial magnets?

Neodymium magnets, or rare earth magnets, are known to be the most powerful type of permanent magnets available to consumers today.

3. Which is stronger N50 or N52 magnet?

The Strongest Grade N48 - N50 - N52 rare earth neodymium magnets with very high grade ingredients. N52 magnets, stronger than N50 Magnetized through thickness 3/4" Pull force: over 76 lbs.

Editor's Notes

During our n40 industrial magnet research, we found 17 n40 industrial magnet products and shortlisted 4 quality products. We collected and analyzed 3,533 customer reviews through our big data system to write the n40 industrial magnets list. We found that most customers choose n40 industrial magnets with an average price of £20.67.

The n40 industrial magnets are available for purchase. We have researched hundreds of brands and picked the top brands of n40 industrial magnets, including POWER MAGNET STORE, Magnosphere, Spider Magnetics Ltd, BKSAI. The seller of top 1 product has received honest feedback from 2,235 consumers with an average rating of 4.9.

Written by
Kenneth Collin Avatar

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.