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Home / Magnets & Magnetic Balls / Custom Magnets, Super Strong Neodymium Iron Boron Magnets in Round Disc, Ring, Square, Countersunk, and Irregular Shapes

Attributes

Brand -
Category Electronic Components / Maker DIY / Magnets & Magnetic Balls
Origin -
Material Grade N52 Neodymium Iron Boron
Available Shapes Disc, Ring, Square, Countersunk, Custom Irregular
Coating Options Nickel-Copper-Nickel, Epoxy, Zinc, Gold
Temperature Resistance Up to 80°C (176°F) standard
Tolerance Precision +/- 0.05mm for custom dimensions
Magnetization Direction Axial, Diametrical, or Multi-pole customizable
Minimum Order Quantity 1 piece for samples, bulk discounts available
Lead Time 3-5 days for stock items, 10-15 days for custom
Packaging Anti-magnetic foam with reinforced cardboard boxing
Certification RoHS and REACH compliant materials

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 4/5

Good value for custom work

Prices are competitive considering these are custom manufactured. Delivery took a day longer than estimated, but the quality of the ring magnets made up for the slight delay.

A

Anonymous

Mar 21, 2026

Rating: 5/5

Incredible holding power

Ordered custom countersunk magnets for a woodworking project. The pull force is exactly as described, and the nickel plating looks professional. Will definitely order again for my next batch of jigs.

A

Anonymous

Mar 18, 2026

Rating: 4/5

Strong but handle with care

These N52 discs are seriously strong. They snapped together before I could align them properly, chipping one corner slightly. My fault for not wearing gloves, but the strength is no joke. Great product overall.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for prototyping

We needed irregular shapes for a sensor housing prototype. The team worked with our CAD files and delivered precise units within two weeks. Quality control seems very strict.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Consistent quality in bulk

Purchased 500 square magnets for assembly line use. Every single unit had consistent dimensions and magnetic strength. Packaging prevented any damage during shipping.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Excellent customer service

I wasn't sure which coating would work best for an outdoor application. Support team recommended epoxy coated rings, and they have held up perfectly through rain and sun for three months now.

5 FAQ

Q: Are these magnets safe to use near electronics?

A: Due to their high strength, please keep them at a safe distance from sensitive electronics, credit cards, and pacemakers. We include safety guidelines with every shipment.

Q: How do I submit a custom shape design for manufacturing?

A: You can upload your DXF, STEP, or PDF drawings directly through our custom quote page. Our engineering team will review feasibility and provide a quote within 24 hours.

Q: Can you manufacture magnets with specific hole sizes for M4 screws?

A: Yes, we can customize countersunk holes or through-holes to fit M4 screws or any other specification you provide in your technical drawing.

Q: Do you offer samples before placing a large bulk order?

A: Absolutely. We encourage customers to order sample kits to test fit and pull force. Sample orders usually ship within 24 hours via express courier.

Q: What is the maximum operating temperature for the epoxy coated version?

A: Our standard N52 material is rated up to 80°C. If you require higher temperature resistance, we can produce grades like N42SH which withstand up to 150°C, though with slightly lower magnetic strength.

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