Ceramic Magnets

A reliable source for Magnet Assemblies information and leading Magnet Assemblies Companies & Manufacturers.

As permanent magnets, ceramic magnets have a much stronger magnetic force than most other common magnets, and their non-metallic ceramic composition makes them the most affordable magnet capable of industrial strength magnetic force. Read More…

Ceramic Magnets Ceramic magnets, or ferrite magnets, are the most common magnet used in industrial applications.

Leading Manufacturers

Castle Rock, CO  |  800-525-3536

WE are the magnets experts. Since 1976, we have provided our customers with everything they need in the realm of magnets. We are a full service provider, and we offer a huge inventory of products, high quality materials, and cost-effective shipping. You will always find what you need in our 15 million magnet selection. Contact us today to learn more!

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Master Magnetics, Inc./The Magnet Source™ $$$

Valparaiso, IN  |  219-465-1998

Our customers know they can trust us to provide them with the best magnets in the industry. We supply magnets from only the best manufacturers in the world. We will not offer substandard products or anything that is not the most cost-effective solution. Our goal is to provide the perfect product to our customers for less! Find out more on our website today!

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International MagnaProducts, Inc. $$$

Rochester, NY  |  800-593-9127

Founded in 1895, Arnold Magnetic Technologies is a leading global manufacturer of high performance permanent magnets, electromagnetics, magnetic assemblies, and precision thin metals. Arnold’s magnets, metals, and systems are used in high-efficiency electric motors and generators, sensors, batteries, and more. A US-based corporation with several ITAR locations complying with DFAR throughout their supply chain, and certified to SAE AS9100D and ISO9001:2015.

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Arnold Magnetic Technologies $$$

Valparaiso, IN  |  219-548-3799

Alliance LLC is one of North America’s largest suppliers of magnetic materials. Our wide range of magnetic materials, along with a state of the art technical center, means you are in good hands! Your success is our priority, and we are not satisfied until you are. Learn more by visiting our website, or give us a call to discuss your magnet requirements. Call or email us today.

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Alliance LLC $$$

Marietta, OH  |  800-258-0991

Magnum Magnetics® is the largest U.S. manufacturer of flexible magnetic sheeting, rolls, strip, and custom profiles. Our products include printable magnetic sheeting for multiple printing presses including offset, flexo, inkjet, and digital. We will take the time to understand your application before recommending a magnetic solution. We offer industry-leading delivery times with world-class, U.S.-based customer service.

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Magnum Magnetics Corporation $$$

Culver City, CA  |  800-421-6692

With over 60 years of technical magnet expertise, Integrated Magnetics produces custom engineered precision magnetic assemblies including Halbach arrays, high-speed rotors, motors, actuators, high-field magnetic yokes, magnetron components and more. We are a US based company, ISO 9001:2015 certified, RoHS and ITAR compliant. Visit our website to learn more.

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Integrated Magnetics $$$

Scottsdale, AZ  |  800-799-4408

A subsidiary of Shields Company, Shields Company Magnetics is a leading sweeping magnets manufacturer and distributor of industrial magnets. Our wide variety of magnet products including rare earth magnets and permanent magnets are used in debris removal, lifting, separating and sweeping. Such applications are for warehouse distribution centers, airports, trucking terminals and construction sites.

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Shields Company Magnetics $$$
placeholder image Master Magnetics, Inc./The Magnet Source™ International MagnaProducts, Inc. Arnold Magnetic Technologies Alliance LLC Magnum Magnetics Corporation Integrated Magnetics Shields Company Magnetics

As their name implies, ceramic magnets are a sintered composite of powdered iron oxide, strontium (or barium) and ceramic powder; the finished product is a brittle and porous charcoal gray ceramic. As a result of their brittle, porous composition, ceramic magnets are often nickel coated to prevent chipping and breaking.

As with powdered metal parts, ceramic magnets can be compacted into blocks, discs and arcs while in powdered form. Once the magnet is sintered, however, machining and forming can be difficult and costly; due to their brittleness and hardness, diamond cutters are usually required to machine ceramic magnets.

Ceramic Disc and Ring Magnet Diagrams Ceramic Magnets - International Magnaproducts, Inc

Although the magnetic force of ceramic magnets is ranked slightly below alnico magnets (a metallic magnet composited from aluminum, nickel and cobalt) and much lower than rare earth magnets, ceramic magnets are prized not only for their cost economy but also for their magnetic permanence.

One of the most important aspects of a magnet's ability to retain its magnetism under corrosion, vibration, exposure to electrical fields, time and heat is important because it determines for which applications a magnet may be used. Ceramic magnets have excellent magnetic permanence under corrosion and electrical exposure, making them the perfect material for DC motors, speakers and lifting, retrieving and separating corrosive materials.

In addition, ceramic magnets' magnetic permanence is beneficial in the welding and construction industries as well as other motor, sound and electromagnetic environments subject to vibration and electricity, but their thermal stability is very poor. Applications which require industrial-strength magnets to operate under high heat use either alnico magnets, which maintain magnetic permanence at up to 550 degrees Celsius, or samarium cobalt rare earth magnets, which also have excellent high heat resistance.

Some examples of applications that ceramic magnets are found in many home appliances, automobiles, children's toys, tools and equipment at the doctor's office. In addition, ceramic magnets are often found in refrigerator magnet hooks, and they are notably stronger than other refrigerator sheet magnets' poly-magnetic compounds.

Ceramic Magnets Informational Video