Custom Size Ring Neodymium Magnet With Hole

Customized Ring Neodymium Magnet. Grade & Size & Shape of our magnets can be customized according to your requirements.
One-Stop Service: Designing, Tooling set up, Manufacturing, Co-Packing, and Delivery.


Custom Size Ring Neodymium Magnet With Hole


Neodymium Iron Boron Magnets

Brand Name

Jin Tong


According to customers' request


Standard +/-0.05mm, Min.+/-0.03mm;
a. Before grinding and cutting, we inspect the black product tolerance;
b. Before and after coating, we will inspect the tolerance by AQL standard;
c. Before delivery, will inspect the tolerance by AQL standard.


Ni, Zn, NiCuNi, gold, silver, copper epoxy can be customized


N35-N52( M, H, SH, UH, EH, AH series ) to choose from


1000 pcs



Q: Can I customize products?

A: Yes, Custom Magnets Are Available.

Please tell us the  size ,  grade ,  surface coation  and  quantity  of the magnet, you will get the most reasonable quotation quickly.


Here are some magnet sizes for reference


Ring Neodymium Magnet


1. Custom Size:  ( Please noted all size in mm or inch )

  • Round Magnet --  Diameter x Height

  • Ring  Magnet --  Outer Diameter x Height - Inter Diameter

  • Block  Magnet --  Length x Width x Height

  • Special Shape Magnet -- Drafts or drawings will be appreciated


2. Grade Choose:   ( The higher the performance level, the stronger the magnetism )

  • N35, N38, N40, N42, N45, N48, N50, N52 (70-80°C)

  • N35M, N38M, N40M, N42M, N45M, N48M, N50M (100-120°C)

  • N30SH, N33SH, N35SH, N35UH, N28EH, N30AH (150-230°C)


3.Surface Coation:   ( Zn and Ni coating is the most popular coating )

  • There have many plating options like Ni, Zi, Gold, Black Epoxy and so on. 


4. Quantity:  ( Samples are available )

  • In order to quote the exact competitive price,the quantity for magnet is essential.

2. Different Grade Parameters Show:

Custom Ring Neodymium Magnet

3. Surface Treatment

There have many plating options like Nickel coating, Zinc, Gold, Black Epoxy, White Epoxy and so on.

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

Custom Ring Neodymium Magnet With Hole

4. Magnetization Side

Custom Neodymium Magnet With Hole

Application of Custom Ring Neodymium Magnet With Hole

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.

Neodymium Magnet With Hole

Some Daily Life Application Show:

Custom Ring Magnet With Hole

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

 Magnet With Hole

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.