Magnetics

High Performance Magnets & Assemblies

About SNT's High Performance Magnets

SNT Group's high-performance permanent magnets have a diverse range of applications and use cases: from electric motors on ships, aircraft, automotive, and other mobility platforms to pump couplings, batteries, solar panels, and nuclear-focused technologies (resonance spectrometer or NMR). The diverse markets we service allow us to keep our technologies on the leading edge of innovation through constant iterations, updates, client-based cross referencing, and various testing disciplines optimized for most efficient outcomes.


Our custom, vertically integrated, magnet production, fabrication and domestic supply chains ensures that our clients receive products that are specifically catered to their unique and oftentimes complex design parameters. We thrive on understanding complexities of our clients product range and delivering on orders that exceed our clients' expectations. In addition, we will provide time senstive suggestions, modifications and adjustments to improve overall product delivery to our clients, over time.


For R&D projects, our Georgia Innovation Center is available to assist taking your project from concept to production. From a few ideas to drawings on napkins, our team can help guide ideas into reality no matter the complexity of the ask.

What Exactly are Permanent Magnets

Permanent magnets are materials where the magnetic field is generated by the internal structure of the material itself.


Inside atoms and crystals you have both electrons and the nucleus of the atom. Both the nucleus and the electrons themselves act like little magnets, like little spinning chunks of electric charge, and they have magnetic fields inherent in the particles themselves. There's also a magnetic field that's generated by the orbits of the electrons as they move about the nucleus. So the magnetic fields of permanent magnets are the sums of the nuclear spins, the electron spins and the orbits of the electrons themselves.


In many materials, the magnetic fields are pointing in all sorts of random directions and cancel each other out and there's no permanent magnetism. But in certain materials, called ferromagnets, all the spins and the orbits of the electrons will line up, causing the materials to become magnetic. This would be your normal iron, cobalt, nickel.


Permanent magnets are limited by the structure of the material. And the strongest magnetic field of a permanent magnet is about 8,000 gauss.

What Makes Permanent Magnets so Wildly Used

Permanent magnets are magnets with magnetic fields that do not dissipate under normal circumstances. They are made from hard ferromagnetic materials, which are resistant to becoming demagnetized.


Permanent magnets are highly susceptible to the influence of external magnetic fields. Once magnetized, they retain their magnetic properties for a relatively longer time than temporary magnets. Permanent magnets are made from material that will inherit the properties of a strong magnetic field when exposed to it. Many materials can temporarily inherit the properties of nearby magnetic material, but these properties often fade quickly, returning the material to its nonmagnetic state. In a permanent magnet the magnetic field continues to be exerted once it has been inherited. Alnico and hard ferrite are two examples of material capable of becoming a permanent magnet.


Permanent magnets also have two magnetic poles: north and south magnetic poles. Their magnetic field is also strongest and densest at the magnetic poles.


Under most circumstances, a magnetized material will retain its magnetic field in a variety of environments. Alnico, for example, will retain its properties in temperatures up to 550 °C. This wide-ranging tolerance of temperatures creates versatile and capable magnets. Other materials, such as those combined to make flexible magnets, retain their magnetism only up to 100 °C and have a much more limited range of applications.


Coercivity (or the coercive field) is the property of a material to resist demagnetization due to the intensity of the material's magnetic field. Coercivity is measured by the extent to which a demagnetizing field must be applied to reduce the material's magnetism to zero. Permanent magnets are composed of materials with a high coercivity which retain their inherited magnetic fields under most conditions, unless intentionally demagnetized.

Core Areas of Focus

SNT Group's high-performance permanent magnets have a wide variety of applications that are frequently used for many types of consumer, commercial, industrial, and technical applications:

  • Holding systems (requiring very high forces)
  • Sensors
  • Reed switches
  • Hard Disc Drives
  • Audio Equipment
  • Acoustic Pick-Ups
  • Headphones & Loudspeakers
  • MRI Scanners
  • Magnetically Coupled Pumps
  • Motors & Generators
  • Magnetic Tool Holders
  • Magnetic Bearings
  • Dental Instruments
  • Door Catches
  • Medical Devices
  • Magnetic Separators
  • Lifting Machinery
  • Crafts & Model Making
  • Hanging Artwork
  • Levitation Device
  • POP Displays
  • Commercial Signage
  • Packaging Closures
  • Jewelry Clasps & more

Our Product Advantages

  • Low heavy rare earth, high performance magnets


  • Unique Grain Boundary Diffusion (GBD) technology


  • High stability magnet surface treatment team



  • Established quality control system (QCS) with full-process traceability


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