NdFeb Ring Magnets
NdFeB ring magnets are sometimes also known as discs with central holes. The NdFeB Rings Magnets exits in two styles – ‘pure’ rings and ‘countersunk’ rings. The holes are centrally located. The countersunk ring allows for the magnet to be screwed onto another item such that the screw is flush with the magnet end face.
Product Description
NdFeB ring magnets are sometimes also known as discs with central holes. The NdFeB Rings Magnets exits in two styles – ‘pure’ rings and ‘countersunk’ rings. The holes are centrally located. The countersunk ring allows for the magnet to be screwed onto another item such that the screw is flush with the magnet end face.
The countersink is only on one side of the ring magnet so the A version has the countersunk end as a North Pole and the B version has the countersunk end as a South Pole. If the countersunk ring is to clamp onto ferromagnetic material then either the A or B version can be used.
If two rings are to attract to each other such that the countersunk faces are attracted, one ring has to be an A version and the other a B version (unlike Poles attract).
Due to their shape, the ring magnets have a higher permeance coefficient than a same-sized disc magnet. This means they can resist demagnetization better, making them ideal for repulsive applications.
We can produce the ndfeb ring magnets in different sizes, different grades (strengths and temperature ratings), different coatings/finishes and in axial and diametric magnetization as part of our custom magnet service.
Product Advantages:
Our NdFeb Ring Magnets are designed to deliver exceptional performance, making them ideal for a variety of commercial and industrial purposes. The following are some of the advantages of using our NdFeb Ring Magnets.
1. High Magnetic Strength
NdFeb Ring Magnets are the strongest magnets in the world, making them an excellent choice for businesses that require high-performance magnets. The magnets can generate strong magnetic fields that make them ideal for applications that require a strong magnetic force.
2. Versatile and Customizable
Our NdFeb Ring Magnets can be customized to suit a wide range of applications. We offer NdFeb Ring Magnets in various shapes, sizes, thicknesses, and grades. This means that our magnets can be tailored to meet the specific needs of our clients.
3. Long-Lasting
Our NdFeb Ring Magnets are designed to last, making them a cost-effective solution for businesses. They have high resistance to demagnetization, which means they maintain their magnetic strength over a long period.
4. Efficient and Energy-Saving
NdFeb Ring Magnets offer high magnetic performance and energy efficiency, making them an ideal solution for businesses that require high-performance magnets without increased energy consumption.
Applications
Our NdFeb Ring Magnets have a broad range of applications in various industries. The following are some of the industries that use our NdFeb Ring Magnets.
1. Medical Industry
Our NdFeb Ring Magnets are used in the medical industry, where precision is critical. They are used in various devices such as MRI machines, which require high magnetic strength.
2. Electronics Industry
Our NdFeb Ring Magnets are used in the electronics industry for a variety of applications such as hard drives, loudspeakers, and computer fans, among others.
3. Energy Industry
NdFeb Ring Magnets are used in the energy industry, where they are used in wind turbines, generators, and motors.
4. Automotive Industry
Our NdFeb Ring Magnets are used in the automotive industry for various applications, including engines, fuel injection systems, and power steering systems.
Our NdFeb Ring Magnets are a perfect solution for businesses that require high-performance magnets for a variety of applications. They offer excellent magnetic strength, energy efficiency, and are long-lasting. Our NdFeb Ring Magnets are customizable and can be tailored to meet the specific needs of our clients. We take pride in the quality and precision of our products, and we are confident that our NdFeb Ring Magnets will exceed your expectations. Order from us today, and experience the benefits of our NdFeb Ring Magnets.
Professional in producing ndfeb magnets, Genesis New Journey is one of the best suppliers in China. We have quality ndfeb ring magnets for sale. Please feel free to contact us.
Looking for a certain size? If you require a specific size that is not available on our website, please contact us for a custom magnet quote.
| Material | Neodymium-Iron-Boron | |
| Working Temperature | Grade | Max. Operating Temperature |
| N35-N52 | 80°C (176°F) | |
| N35M- N50M | 100°C (212°F) | |
| N35H-N48H | 120°C (248°F) | |
| N35SH-N45SH | 150°C (302°F) | |
| N28UH-N40UH | 180°C (356°F) | |
| N28EH-N38EH | 200°C (392°F) | |
| N28AH-N35AH | 220°C (428°F) | |
| Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more.Customized shapes for Sintered Neodymium Strong Magnets are available. | ||
| Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Phosphating, Chemical, PTFE, ParyleneEverlube, Passivation and more. | ||
| Magnetization Direction | a. Thickness Magnetizedb. Axially Magnetizedc. Diametrally Magnetizedd. Multi-poles magnetizede. Radial Magnetizedf. Customized specific requirements magnetized | |
| Delivery Time | The lead time around 7-25days | |
| Payment Terms | T/T, L/C,XTransfer | |
Surface Treatment of NdFeB magnet
NdFeB magnets are susceptible to corrosion, so it is necessary to give surface treatment Currently, the surface treatments mainly includes chemical plating, conversion coating and coating. In most cases, NdFeB magnet surface are treated with NiCuNi (Nickel-Copper-Nickel) plating, Zinc plating and Epoxy coating. For special requirements, passivation and phosphatization are also adopted.
| Plating Instructions | ||||
| Type | Coating | Thickness | Color | SST(Hours) |
| Nickel | Ni+Cu+Ni | 10~20 μm | Bright Silver | 24~72 |
| Black Nickel | Ni+Cu+Black Ni | 10~20 μπ | Bright Black | 48~96 |
| Cr3+Zinc | Zinc | 5~8μm | Blue white | 16~48 |
| Color Zinc | 5~8μm | Colorful | 36~72 | |
| Sn | Ni+Cu+Ni+Sn | 10~25μm | Silver | 36~72 |
| Au | Ni+Cu+Ni+Au | 10~20 μm | Gold | 12 |
| Ag | Ni+Cu+Ni+Ag | 10~20μm | Silver | 12 |
| Epoxy | Exopy | 10~20μm | Black/Grey | 48 |
| Ni+Cu+Epoxy | 15~30μm | 72~108 | ||
| Zn+Epoxy | 15~25μm | 72~108 | ||
| Passivation | //// | 1~3μm | Dark Grey | temporary protection |
| Phosphatization | //// | 1~3μm | Dark Grey | temporary protection |
In order to quote you the best price, please provide us the following information.
| Shape | Block/Rectangle/Square | Disc/Round/Cylinder | Ring/Countersunk |
| Dimension | L (?) x W(? ) xT(?) | D(?) x T(?) | OD(?) x ID(?) x T(?) |
| L: length. W: width, T: thickness, D: diameter, OD: outer diameter, ID: inner diameter.For other shapes, please tell more in details or drawing would be much appreciated. | |||
| Coating | Zn, Nickel, Ni-Cu-Ni, Epoxy, Au, Silver or other ? | ||
| Working Temperature | Normal or High temperature ? | ||
· Customized is Available
· Affordable price
· Quality guaranteed
· T/T and XTranfer accepted
· Other payment accepted
· Fast shipping, Worldwide delivery
· excellent customer service
· Offer free magnetic solution
· Bulk discounts for larger orders
FAQ
What are neodymium ring magnets?
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.
How strong are neodymium ring magnets?
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.
What are the common uses of neodymium ring magnets?
Common applications include use in electric motors and generators, speakers and microphones, magnetic bearings and couplings, sensors and actuators, and in various holding, mounting, and decorative projects where a central hole for mounting or threading is beneficial.
Can neodymium ring magnets be used outdoors?
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.
How do you handle neodymium ring magnets safely?
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.
Do neodymium ring magnets lose their magnetism over time?
Under normal conditions, neodymium ring magnets maintain their magnetism for decades. However, they can be demagnetized by exposure to high temperatures, strong demagnetizing magnetic fields, or physical damage.
Can neodymium ring magnets affect electronic devices?
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.
Are neodymium ring magnets coated?
Neodymium ring magnets are typically coated to prevent corrosion. Common coatings include nickel, zinc, and epoxy, which protect the magnet from environmental damage and extend its usable life.
How do I choose the right neodymium ring magnet for my project?
Consider the required magnetic strength, the environmental conditions the magnet will be exposed to, the size of the central hole needed for your application, and the overall size and thickness of the magnet. The grade of the magnet (which indicates its strength and temperature resistance) and the type of coating should also match your specific requirements.
How are neodymium ring magnets manufactured?
The manufacturing process involves melting the raw materials, casting the alloy, pulverizing it into a fine powder, pressing the powder in a magnetic field to align the particles, sintering the compacted alloy to fuse the particles, machining it into the ring shape, and finally, applying a protective coating. The magnets are magnetized after they are fully processed.
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