Non-permanent magnets are electromagnets which require an external electric current to trigger magnetism or non-magnetism. Permanent magnets, on the other hand, retain their magnetism indefinitely or until they are demagnetized by vibration, dirt, corrosion or interfering magnetic fields. Read More…
Leading Manufacturers
Master Magnetics, Inc./The Magnet Source™
Castle Rock, CO | 800-525-3536WE 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!
International MagnaProducts, Inc.
Valparaiso, IN | 219-465-1998Our 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!
Arnold Magnetic Technologies
Rochester, NY | 800-593-9127Founded 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.
Alliance LLC
Valparaiso, IN | 219-548-3799Alliance 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.
Magnum Magnetics Corporation
Marietta, OH | 800-258-0991Magnum 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.
Integrated Magnetics
Culver City, CA | 800-421-6692With 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.
Shields Company Magnetics
Scottsdale, AZ | 800-799-4408A 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.
Permanent Magnets - Magnum Magnetics CorporationA magnet's capacity for retaining its magnetism under various conditions is called "magnetic permanence," and some types of permanent magnets have higher capacities for permanence than others.
Typically, permanent magnets are fabricated from such chemical elements as non-rare earth elements like, alnico (aluminum-nickel-cobalt), ceramics (such as strontium and barium ferrite), and rare earth elements link, Sm-Co (samarium-cobalt) and NdFeB (neodymium-iron-boron). As an advantageous magnet option, permanent magnets are widely used in many industries, particularly for applications which require constant magnetic force, such as in metal separation and holding, as well as the automotive, industrial manufacturing, aerospace, construction industries and more.
In addition to the aforementioned applications, another useful application is that mechanical motion can be created by permanent magnets when an electric current is introduced to one of the magnets' poles. However, rare earth magnets, including neodymium magnets and samarium cobalt magnets, have a much stronger magnetic force (and higher magnetic permanence) than other permanent magnets and for this reason can be used in small quantities to help with sound amplification and computer data processing.
For instance, very small neodymium magnets help computer hard drives read and store information, or they may cause the vibration in speakers which produces sound. Ceramic magnets and aluminum-nickel-cobalt alloyed alnico magnets, two types of permanent magnet which are fabricated through sintering, are also used to amplify sound as well as for various metal holding, sorting and electric motor applications.
This diversity of applications make permanent magnets essential in food processing, bulk material handling, metal fabrication and handling, electric motor manufacturing, sound amplification, data processing and many other industries. Magnet manufacturers can fabricate custom permanent magnets into a variety of shapes, densities and magnetic strengths.