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Home / Magnets & Magnetic Balls / Strong Magnetic Patches High-intensity Neodymium Iron Boron Magnets, Rectangular Magnet Fixed Holder Magnetic Force

Attributes

Brand -
Category Electronic Components / Maker DIY / Magnets & Magnetic Balls
Origin -
Material Neodymium Iron Boron (NdFeB)
Shape Rectangular Block
Coating Nickel-Copper-Nickel (Ni-Cu-Ni)
Grade N52 High Strength
Temperature Resistance Up to 80°C (176°F)
Application Industrial Holding, DIY Projects, Crafts
Surface Finish Polished and Smooth
Corrosion Resistance High (due to triple layer coating)
Package Contents 10 Pieces per Pack
Origin Factory Direct Manufacturing

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 4/5

Strong and durable

Very powerful magnets. I deducted one star only because the packaging could be better to prevent them from clanking during shipping, but the product itself is flawless.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Great value, handle with care

Excellent magnetic strength for the price. Just be careful when separating them as they can snap together quickly. Overall a great purchase.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Industrial grade quality

We use these in our production line for temporary fixture holding. They have maintained their strength over months of daily use. Highly recommend.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Incredibly strong hold

These magnets are exactly what I needed for my workshop jig. The pull force is impressive even on thick steel plates. Very satisfied with the quality.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for DIY crafts

I used these to make custom cabinet latches. They are small but mighty. The nickel coating looks professional and hasn't chipped yet.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Exceeded expectations

The rectangular shape makes them easy to mount compared to round discs. The adhesive backing option would be nice, but the raw magnet works perfectly for our bolts.

5 FAQ

Q: Do these come with adhesive backing?

A: This specific listing is for the raw magnet blocks without adhesive. However, you can easily attach them using strong epoxy glue or double-sided industrial tape.

Q: What is the exact pulling force of a single magnet?

A: The pulling force varies based on the surface thickness and material, but for a direct pull on a thick steel plate, a single N52 block of this size typically holds around 15-20 lbs.

Q: Are these magnets suitable for outdoor use?

A: Yes, the Ni-Cu-Ni coating provides good corrosion resistance, but for prolonged exposure to harsh weather, we recommend adding an additional protective sealant.

Q: Will the magnet lose strength over time?

A: Neodymium magnets are permanent magnets and will retain over 99% of their strength for decades, provided they are not exposed to temperatures above 80°C or physical damage.

Q: Can these be drilled or cut to size?

A: We strongly advise against drilling or cutting these magnets yourself. The material is brittle and can crack or shatter, and the dust generated is flammable. Please order custom sizes if needed.

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