30x20x1mm N38 Grade Block Magnet with Nickel Plating MOQ1000PCS

Material: Sintered Neodymium Iron Boron Grade: N38. Tolerance:Standard +/-0.05mm, Min.+/-0.03mm Magnetized through the 1mm thickness, the poles are on the 30x20mm surfaces Nickel-Copper-Nickel triple layer coating for superior durability.


Sintered NdFeB Magnet


N38 Grade or Customized

Tolerance Size


Magnetization side

Through the thickness


Nickel Plating or customized



1. How to customized your magnets?

( Size, shape, grade,coating,ect can be customized according to your requirements. )

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2. How Strong is Neodymium Magnet?

-- Different NdFeB Magnet Parameters:

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3. Surface Treatment

There have many plating options like Nickel coating, Zinc, Gold, Black Epoxy, White Epoxy and so on.
Zn and Nickle coating is the most popular coating.

After plating, has a good rust, corrosion resistance.

Different coatings for your choose


 Suface Color

Coating Thickness


Salt Spray Test 


Blue White

5 ~ 10 Microns

Have a high anti-corrosion ability

> 24 hr 


Glowing Sliver

15 ~ 30 Microns 

Applicable to a more harsh enviroment

> 48 hr 



15 ~ 30 Microns

Toy, insulation machinery

> 300 hr 



5 ~ 10 Microns

Decorative, heathy-care 

> 24 hr

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4. Magnetization Side

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Application of rare earth block magnets

Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.

Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, meter, sound meter, a reed switch, sensors.

Electrical field: VCM, CD / DVD-ROM, generators, motors, servo motors, micro-motors, motors, vibration motors.

Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery.

Healthcare: MRI scanners, medical equipment, magnetic health products and so on.

Other industries: magnetized Wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, doors and windows magnetic, magnetic luggage, leather magnetic toys, magnetic tools, gifts and packaging.

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Some Daily Life Application Show:

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Magnets Package:

1. Disc Magnet is a special goods for delivery, and they have to make special packing before transportation.

2. Antimagnetic Packaging / Neutral Packing / Custom-make Welcome

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Warning :

1. Keep away from pacemakers.

2. Powerful magnets may hurt your fingers.

3. Do not touch for children, parental supervision required.

4. All magnets may be chip and shatter, but if it is used correctly, it can last a lifetime.

5. If the magnet is damaged, please dispose of completely. Shards are still magnetized.

6. If magnet is swallowed, it will be very dangerous. 

Consultation Contact us

Jin Tong Magnet will join in CWIEME exhibition in Berlin International Convention Center from May 10th to 12th, 2022. Our booth number is 52C01. If you are convenient, we warmly welcome you to visit our booth.