Home / Products / Neodymium Magnet / Neodymium Ring Magnets

Neodymium Ring Magnets

Everbeen Magnet:Your Professional Neodymium Ring Magnets Manufacturer!

Everbeen Magnet specializes in the development and processing of various permanent magnet materials such as NdFeB,Ferrite magnets and accessories, electronic components, and magnetic application devices. Our production base is located in the suburbs of Ningbo, Zhejiang Province. It covers a total area of 20,000 square meters, more than 100 employees, and a monthly production capacity of 600 tons of various types of NdFeB(neodymium) magnets. Products are widely used in many fields such as motors and electrical appliances, instruments, speakers, sensors, and office automation equipment.

Why Choose Us

01/

Expertise and Experience
20+ years of experience in the magnet industry, all our sales have 12+ years expertise and knowledge in various types of permanent magnets.

02/

Customization
Most of permanent magnets are customized according to drawing and requests.Be flexible in accommodating customer needs, whether it involves order adjustments, additional information, or other special requests.

03/

Diverse Product Range
Besides Neodymium magnet, we also provide Alnico magnet, Samarium Cobalt (SmCo) magnet, Ferrite(ceramic) magnet, Flexible magnet(Rubber magnet) and Magnetic Products.

04/

Quality Assurance
All magnets are under our strict quality control. We assure you what we offer is superior and quality products. From the beginning of the production to the inspection of finished goods, we pay attention to every detail and try our best to avoid any mistakes carefully.

05/

Effective Communication
Provide responsive and effective communication during the purchasing process, addressing any inquiries promptly and offering support to ensure a smooth transaction.

06/

Timely Delivery
15-30 days according to magnet order information.We promise timely delivery to ensure you receive the goods on time.

Specification

Material:	Neodymium-Iron-Boron	Size:	Customized
Grade:	N35-N52	Shape:	Ring
Finish:	NiCuNi Coated, or Zinc, Black Epoxy	Br:	50~53 MGOe
Max. working Temp.:	80 Celsius Degree	Export Port:	Xiamen, China
Tolerance:	+/-0.05mm	Lead time:	12~15 days

Advantages Of Neodymium Ring Magnets

Exceptional Magnetic Strength: Neodymium magnets are renowned for their remarkable magnetic strength. They are the strongest type of permanent magnets available, providing a high magnetic field in a compact size.

Compact Size: Neodymium ring magnets are compact and space-efficient, allowing them to fit into tight spaces or applications where size is a critical factor.

Wide Range of Sizes and Shapes: These magnets come in various sizes and shapes, including ring magnets with countersunk holes, non-countersunk holes, and different outer diameters. This versatility allows for customization to suit specific project requirements.

High Magnetic Field: Neodymium magnets offer a high magnetic field that makes them ideal for applications requiring strong magnetic force, such as electric motors, magnetic levitation displays, and precision instruments.

Durability and Longevity: Neodymium ring magnets are coated with materials like nickel or epoxy, which protect them from corrosion. This ensures their durability and long-term performance, even in challenging environments.

Versatility: These magnets find applications in a wide range of industries, including aerospace, manufacturing, automotive, electronics, and medical devices. They are used in diverse applications, from high-end speakers to magnetic experiments and jewelry.

Temperature Resistance: Neodymium ring magnets are available in high-temperature variants, making them suitable for applications that involve elevated temperatures.

High Pull Force: These magnets have impressive pull forces, making them ideal for applications where a secure and reliable magnetic connection is essential.

Application of Neodymium Ring Magnets

Microwave Communication Technology
Neodymium ring magnets are utilized in appliances like circulators and isolators in the realm of microwave communication technology. By producing a powerful magnetic field that enables effective signal transmission and reception, these magnets aid in the control and direction of microwave signals.

Electrical Engineering
Neodymium ring magnets are frequently utilized in electrical engineering applications. They enable the transformation of electrical energy into mechanical motion in actuators, motors, and generators.

Electroacoustic Devices
Neodymium ring magnets are used to produce high-quality sound in electroacoustic equipment as speakers, headphones, and microphones. These magnets make it possible for electrical information to be converted into sound waves more precisely and effectively, which improves audio quality.

Magnetic Mechanical Engineering
Neodymium ring magnets are essential for applications in magnetic mechanical engineering, according to this discipline of engineering. They are utilized in magnetic drive systems, magnetic couplings, and magnetic bearings.

Transportation
Neodymium ring magnets have revolutionized the transportation industry, particularly in the realm of electric vehicles (EVs) and hybrid vehicles. These magnets are integral components of the motors and generators used in these vehicles, offering a host of benefits.

Magnetic Separation Technology
In the field of magnetic separation technology, neodymium ring magnets play a vital role in separating magnetic materials from non-magnetic materials. Magnetic separators, incorporating these magnets, find applications in diverse industries such as mining, recycling, and food processing. The strong magnetic field generated by neodymium ring magnets enables the attraction and capture of ferrous particles, facilitating efficient material separation processes.

Magnetization Technology
In the realm of magnetization technology, neodymium ring magnets assume a pivotal role. This field revolves around the process of magnetizing permanent magnets. These powerful magnets are employed in magnetizing fixtures and equipment to generate a robust magnetic field. This magnetic field is then used to imbue other objects or materials with magnetism, making it a crucial technology in manufacturing processes that necessitate magnetization.

Magnetic Therapy and Fitness Equipment
The versatility of neodymium ring magnets extends to the domains of magnetic therapy and fitness equipment. Within the realm of magnetic therapy, these magnets find applications in a range of therapeutic devices such as magnetic bracelets and wraps. These items are believed to offer pain relief and aid in the healing process.

Process of Neodymium Ring Magnets

Preparation and Pretreatment of Raw Materials

The first step involves preparing the raw materials, which include neodymium, iron, boron, and sometimes other elements like dysprosium or praseodymium to enhance specific properties. These materials are weighed, crushed, cut, and treated for rust removal before being melted.

Melting and Alloy Formation

The prepared materials are melted in a vacuum induction furnace. This process creates an alloy of neodymium, iron, and boron, along with any additional elements that may have been added.

Hydrogen Decrepitation and Pulverizing

After forming the alloy, it undergoes hydrogen decrepitation, breaking it into a coarse powder. This powder is then further pulverized into a fine powder, typically using a jet mill, to achieve the desired particle size for optimal magnetic properties.

Pressing and Magnetic Orientation

The fine powder is compacted in a mold under an external magnetic field. This step aligns the magnetic domains of the particles, ensuring that the finished magnet will have a strong magnetic field in the desired direction. Sometimes, cold isostatic pressing is also used to achieve higher density.

Sintering and Annealing

The compacted material is then sintered in a vacuum furnace at high temperatures. Sintering densifies the material and forms a solid magnet. After sintering, the magnets are annealed at lower temperatures to relieve internal stresses and improve magnetic properties.

Machining and Shaping

Due to the brittleness of NdFeB magnets, they are machined to their final dimensions using diamond tools. This step can include cutting, grinding, and other forms of machining to achieve the precise shape and size required, such as a ring.

Surface Treatment

A surface treatment or coating is applied to the magnets to prevent oxidation and corrosion. Standard coatings include nickel-copper-nickel, zinc, epoxy, and others. This step is crucial for extending the lifespan of the magnets, especially in harsh environments.

Magnetization

Finally, the magnets are magnetized by exposing them to a strong magnetic field. This step uses a coil that generates a field significantly stronger than the magnet's coercivity, ensuring the magnets are fully magnetized.

Packaging and Shipping

Professional Export Package

There are 8 boxes in one carton. Cartons packages are for air shipment, and we will hold cartons with one case or pallets for sea shipment.

Our Certificates

FAQ

Q: What information do i need to offer when I have an enquiry?

A: If have any enquiry, please kindly advise the following information: Magnet grade or magnetic properties, size, shape and drawing with tolerances, Magnetic direction, quantity, Surface coating etc.

Q: How long is your delivery time?

A: For stock products, we will send goods to you within 1-2 days after receiving the payment. If we do not have them in stock, generally speaking, production time is 15-20days.

Q: Can you provide samples? Is it free or extra?

A: Sample is available, if it is customized, small magnet can be free of charge; if it needs open mold, customers should pay for the cost. Customer should cover for the freight cost.

Q: Can I print logo on the magnets?

A: YES, We can help to print customized logo or marks on the magnets..

Q: How can we guarantee quality?

A: Always a pre-production sample before mass production; Always final Inspection before shipment;

Q: What are neodymium ring magnets?

A: Neodymium ring magnets are powerful permanent magnets made from an alloy of neodymium, iron, and boron. They have a central hole and are shaped like a ring, combining the strong magnetic properties of neodymium magnets with a convenient form factor for various applications.

Q: How strong are neodymium ring magnets?

A: The strength of neodymium ring magnets depends on their size, grade, and the specific alloy composition. They are among the strongest types of permanent magnets available, capable of producing significant magnetic force relative to their size.

Q: Can neodymium ring magnets be used outdoors?

A: Yes, but their resistance to outdoor conditions depends on their coating. Coatings like nickel, zinc, or epoxy can protect the magnet from corrosion caused by moisture and other environmental factors. Epoxy coatings offer the best protection for outdoor or humid environments.

Q: How do you handle neodymium ring magnets safely?

A: Handle neodymium ring magnets with care to avoid sudden impacts or pinching fingers between them and another magnet or metal object. Use appropriate safety equipment, like gloves, and keep them away from sensitive electronic devices and magnetic storage media to prevent damage.

Q: Can neodymium ring magnets affect electronic devices?

A: Yes, the strong magnetic fields of neodymium ring magnets can potentially interfere with or damage electronic devices and magnetic storage media. It's advisable to keep a safe distance between magnets and sensitive electronic equipment.

As one of the most professional neodymium ring magnets manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized neodymium ring magnets at competitive price from our factory.

ring magnets for endocrinology equipment, ring magnets for hematology equipment, ring magnets for oncology equipment