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Disc Magnets

Professional Disc Magnet Supplier

Zhaobao Magnet Group is one of China's earliest enterprises engaged in the production of rare earth permanent magnet products. Through years of development, we have grown into a large-scale, comprehensive supplier of permanent magnet products, integrating R&D, manufacturing, and sales. Our products include Neodymium iron boron magnets, Samarium cobalt, Ferrite magnets, Bonded neodymium iron boron magnets, Rubber magnets, and requirements of a variety of permanent magnets and its components.

Powerful Neodymium Magnet
Powerful neodymium magnet is currently the highest performing permanent magnet , which is widely used in aerospace, defense, electronic communication, and other fields.
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Neodymium Disc Magnet
We manufacture high-performance N45/N52 grade neodymium disc magnets for consumer electronics, industrial automation, and building applications. With vertically integrated production processes and...
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Strong Disc Magnet
A special type of NdFeB magnet that has become popular in recent years is the N52 disk magnet. The energy product of N52 strong disc magnet is the highest grade. So they can generate incredibly...
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Powerful Disc Magnet
Powerful disc magnet is currently the highest performing permanent magnet , which is widely used in aerospace, defense, electronic communication, and other fields. We have a complete industrial...
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Rare Earth Disc Magnet
Rare earth disc magnet has different temperature resistances depending on their manufacturing materials. Rare earth disc magnet is classified based on their manufacturing materials. The higher the...
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Why Choose Us

Quality Assurance
The company has a variety of advanced production, inspection equipment more than 3000 sets, effectively ensure the quality of our products and delivery requirements. The purity of our products can reach over 95%, compared to the industry average of only 80%.

Customization Services
High quality grades from N28 to N52, even high-temperature resistant magnets, with geometric shapes of various thicknesses. Magnetic direction, coating material, size and material can be customized according to customer requirements.

Production Market
We have extensive and deep cooperation with many world famous enterprises in China and even the world. Such as: Ge Ford Samsung Hitachi Haier Xiaomi Foxconn Disney, etc.

Technical Certification
The Group has passed IATF16949, ISO9001, ISO14001, ISO45001 and other international authoritative system certifications.
The products of the group have obtained various authoritative certificates such as CE, CPC, ROHS, REACH, EN71, CP65, ASTM, CPSIA, etc., and are the only magnet factory in China that has the ability to pass CHCC certification.

Types of Disc Magnets

Neodymium Disc Magnet

Neodymium disc magnets utilize axial magnetization, meaning that one of the circular faces serves as the North Pole, while the other circular face serves as the South Pole.

Strong Disc Magnet

The energy product of strong disc magnet is the highest grade. So they can generate incredibly strong magnetic fields that can be applied in a wide range of situations.

Powerful Disc Magnet

Powerful disc magnet is currently the highest performing permanent magnet, which is widely used in aerospace, defense, electronic communication, and other fields.

Rare Earth Disc Magnet

Rare earth disc magnet has different temperature resistances depending on their manufacturing materials. Rare earth disc magnet is classified based on their manufacturing materials.

Specification

Product Name	Neodymium Disc Magnet
Grade & Working Temperature	Grade	Working Temperature
	N30-N55	+80℃ / 176℉
	N30M-N52M	+100℃ / 212℉
	N30H-N52H	+120℃ / 248℉
	N30SH-N50SH	+150℃ / 302℉
	N25UH-N50UH	+180℃ / 356℉
	N28EH-N48EH	+200℃ / 392℉
	N28AH-N45AH	+220℃ / 428℉
Magnetic Direction	Thickness, Axial, Radial, Radiation, Multi-pole, etc..
Coating	Salt spray test can reach 38-96 hours
Tolerance	Lowest can reach ±0.01mm
Size Range	0.2 to 150mm

Advantages of Disc Magnets

Strong Magnetic Force: Disc magnets offer superior magnetic performance compared to other types of magnets, making them ideal for applications requiring high magnetic forces.

Compact Size: The small size and thin profile of disc magnets allow for easy integration into space-constrained applications.

Versatility: Disc magnets are available in a wide range of sizes, materials, and magnetic strengths, making them suitable for diverse applications.

Durability: Disc magnets are made from high-quality materials that resist corrosion and demagnetization, ensuring long-term reliability.

Cost-effectiveness: Disc magnets are relatively inexpensive compared to other types of magnets, making them a cost-effective solution for various applications.

Application of Disc Magnets

Motors: Disc magnets are used in motors to produce a magnetic field that drives the rotation of the motor.

Generators: Disc magnets are used in generators to produce a magnetic field that is used to generate electricity.

Sensors: Disc magnets are used in sensors to detect the presence or absence of a magnetic field.

Speakers: Disc magnets are used in speakers to produce a magnetic field that drives the movement of the speaker cone and produces sound.

Separation: Disc magnets are used in the separation of ferrous materials from non-ferrous materials in recycling and processing operations.

Holding

Disc magnets are used to hold objects in place, such as in the construction of magnetic boards or in the closure of bags or other containers.

Scientific instruments

Disc magnets are used in a variety of scientific instruments, such as mass spectrometers and MRI machines.

Toy magnets

Disc magnets are also used in toys, such as magnetic building sets and desk toys.

Regular Coating

Nickel (Ni-Cu-Ni) Plating

The most common and cost-effective coating. Offers good resistance to moisture and mild chemicals. Provides a shiny, silver finish.

Epoxy Coating

Thicker and more durable than nickel, offering superior protection in wet or outdoor environments.

Gold, Zinc, or PTFE Coatings

Used for specialized applications requiring non-conductive surfaces, enhanced aesthetics, or chemical resistance.

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Best Practices for Using Disc Magnets

Handle with Care

Always wear protective gloves and eye protection when handling strong magnets to avoid pinching injuries or flying debris from sudden attraction.

Avoid High Heat

Keep magnets away from open flames, soldering tools, or hot surfaces to prevent irreversible loss of magnetism.

Store Properly

Keep magnets separated with non-magnetic spacers and store in a dry, cool place to prevent corrosion and unintended bonding.

Use Correct Polarity

Mark poles during installation to ensure proper orientation in circuits, sensors, or motor assemblies.

Check Compatibility

Ensure nearby materials (e.g., electronics, pacemakers, credit cards) are not affected by strong magnetic fields.

How to Produce Disc Magnets

Powder metallurgy: This method involves mixing a magnetic material with a binder to create a slurry, which is then pressed into a mold to form the desired shape. The mold is then heated to cure the binder and harden the magnet.

Isotropic pressing: This method involves pressing a magnetic material into a mold using high pressure to form the desired shape. The magnet is then heat-treated to improve its magnetic properties.

Injection molding: This method involves injecting a molten mixture of a magnetic material and a binder into a mold to form the desired shape. The mold is then cooled and the magnet is removed.

Sintered process: This method involves heating and pressing a mixture of magnetic powders together to form a solid magnet. The magnet is then heat-treated to improve its magnetic properties.

Bonded process: This method involves bonding together magnetic particles using a binder to form a magnet. The magnet is then cured to harden the binder and improve its magnetic properties.

Customization Process

Custom Requirements
Start by provide your requirements for custom neodymium magnet product. This can include information on the magnet’s size, shape, strength, coating, and any other special features that the customer may need.

Scheme Design
Based on the your requirements, design the magnet using specialized software such as SolidWorks or AutoCAD. This will allow our to create a 3D model of the magnet, which can be used to verify that it meets the your requirements.

Select the Materials
Choose the appropriate neodymium magnet materials for the specific application of the custom magnet, as well as any other materials needed for the manufacturing process, such as adhesives or coatings.

Sample Confirmation and Production
Before officially commencing mass production, we will first send you samples for your confirmation. Using the design and material selections as a guide, begin fabricating the magnet.

Package and Deliver the Magnet
Once the magnet has been tested and approved, package it carefully to ensure that it is protected during shipping. We will unconditionally resend the product if there are quality issues.

Shipping and Delivery

Packing	1. White inner box with cotton plastic. 2. Strong suitable outer carton size. 3. Fully anti-magnetized packaging. 4. Recommend the best solution of shipment for your reference according to order quantities.
Shipping Time	If in stock, free sample and send out on the same day; Out of stock, delivery time is same with mass production.
Transportation	We support express, air, sea, train, truck etc. and DDP, DDU, CIF, FOB, EXW trade term.
Payment Method	Flexible payment methods include T/T in advance and western union and L/C at sight or others.

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Our Factory

The main magnet factory covers an area of 60000 square meters with well-equipped facilities and has over 500 employees.

FAQ

Q: Can disc magnets be recycled?

A: Yes, disc magnets—particularly those made from neodymium, a type of rare-earth magnet—can be recycled. However, the recycling process is more complex than that of common metals due to the specialized materials involved, such as neodymium, iron, and boron.

Q: How do I choose the right disc magnet for my design?

A: Consider magnet type (NdFeB or SmCo), size, pull force, temperature resistance, and coating. These factors affect strength, stability, and durability.

Q: What is the strongest type of disc magnet?

A: Neodymium disc magnets are the strongest.
Whenever maximum suction force is required, neodymium magnets are the preferred choice. You need to keep them away from electronic devices, credit cards, and children. Additionally, you can use cardboard or foam to separate strong magnets, preventing them from sticking to one another.

Q: Can disc magnets lose their magnetism?

A: Yes, disc magnets can lose magnetism.
If I heat them too much, drop them hard, or store them near strong magnetic fields, they can get weaker. Magnets must be handled with great care to maintain their strong magnetic force.

Q: How do I safely store disc magnets?

A: The disc magnets are stored in a non-magnetic box with dividers.
I keep them away from electronics, credit cards, and kids. I also separate strong magnets with cardboard or foam to prevent them from snapping together.

We're well-known as one of the leading disc magnets manufacturers and suppliers in China for over 30 years. With abundant experience, we warmly welcome you to buy high quality disc magnets made in China here from our factory. We also accept customized orders.

Powerful Disc Magnet, circular disc magnets, 1 2 neodymium magnets