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AMF supplies Ring Magnets made from both strong rare earth Neodymium materials and more economical Ferrite material. Our range includes large-diameter magnetic rings up to 145 mm wide and small magnetic rings with diameters as small as 5mm. The inside diameter across the void area of each ring magnet can also vary to make the ring magnet more suited to specific applications or for more suitable fitment options. There is also the direction of magnetism options available which means the magnetic rings can be manufactured as an axial ring magnet, a radial ring magnet or a diametrically magnetised ring magnet. The direction of magnetism may be more suitable for special manufacturing operations or specific applications in consumer electronic goods. As with other magnet shapes, the vast majority of ring-shaped magnets are axially magnetised, meaning the poles lie at each end of the height dimension i.e. thickness.

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Ferrite & Neodymium Ring Magnets

Ferrite ring magnets, while relatively low in holding ability, are able to resist corrosion and can also tolerate humid conditions. This makes them highly suitable for lightweight holding in outdoor locations. In comparison, popular rare earth ring magnets are super strong and compact in size, but have lower resistance to corrosion and can lose magnetic power in temperatures over 80°C. Some epoxy or plastic-coated Neodymium ring magnets are available in order to counteract this slight vulnerability to corrosion.

Magnetic rings are well known for their use in sound and audio applications and the associated equipment for the live music and sound recording industries. Initially, large and heavy Ferrite material was the predominant player in the industry for reproducing and amplifying sound via large ceramic ring magnets. Over the years, designers of sound equipment such as loudspeakers and microphones have, to a large degree, moved away from Ferrite ring magnets and in most cases have adopted Neodymium magnets that can produce high-quality sound from more compact equipment. Alnico and Ferrite magnets are still used in guitar pickups and some speakers and microphones by producers and musicians who want to recreate a more traditional, retro or bespoke sound.

Ring Magnets are highly versatile and used by many industries.

It’s hard to find a magnet shape that is more versatile and adaptable than a ring-shaped magnet. While the central void reduces the amount of magnetic material compared to a solid disc magnet, the ring shape offers more options for fitting or attaching the magnet. Customers like large industrial manufacturers use ring magnets in production monitoring systems. Small businesses, artists and fashion designers find ring magnets easy to use and a very distinctive and practical component in their product designs. Ring magnets can be fitted onto shafts or rods in commercial equipment where ferromagnetic influences cause them to rotate, while clothing and cloth coverings can be easily fitted with DIY magnetic closure and attachment points by stitching the rings into the material. Unlike solid shape magnets, the rings can be attached with a wire, cable ties, cord or anything else you have at hand.

Find the right Ring Magnet for your application.

AMF has a huge range of Ring magnets in sizes and materials to suit every application. Neodymium Rings are available in grades (strengths) from powerful N52 grade right down to N35 grade. Magnetic grades for Neodymium magnets allow the same size magnet to have a stronger pull force. We also have rare earth Ring magnets suitable for high temperature operating environments up to 180℃ and Ferrite Ring magnets and Ferrite Holding Pot Magnets that resist corrosion extremely well and have deep and penetrative magnetic fields. Coating options for the Neodymium Ring magnets include Nickel, Plastic, Epoxy and Gold. If you need help or advice on any of our magnetic products use our customer contact email service or call our office. Remember, free standard shipping across Australia is available for orders over$30


What is a Ring magnet?

Ring magnets operate just like a Disc-shaped magnet but have reduced magnetic holding power because of the void and the absent magnetic material. Ring magnets have a typical donut shape that helps them fit onto shafts and rods, or attach to other materials without glue or fasteners. Any type of magnetic material can be used to manufacture a magnetic ring.

How do Ring magnets work?

As with Disc-shaped magnets, the magnetic field of Ring magnets also generally flow through the height dimension. Try the FAQ & Knowledge Base pages on the AMF website for helpful technical information on how magnets work, the manufacturing processes and stories about customer applications using Ring magnets.

What are Ring magnets best used for?

Ring magnets can be used for magnetic applications of any kind but are very well suited to circumstances where the attachment of a magnet by glue or fasteners needs to be avoided. Ring magnets fit easily onto shafts and spindles to help operate equipment or monitor movement in processing equipment and alarms. Ring magnets are useful for demonstrating the repulsion and attraction properties of the North and South poles to students in the classroom. Ring magnets are best known for their use in audio amplification equipment including microphones, speakers and pickups on electric stringed instruments. Many modern electric motors use Ring magnets to generate movement and power in cordless electric power tools.

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The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More