Types of Magnetic Cores

Backed by decades of expertise, an extensive quality program, and comprehensive in-house testing abilities, our team can accommodate virtually any core design requirements without volume restrictions. The cores we build range in weight from 0.002 lbs. to over 4,000 lbs., with height and width dimensions up to 7.5 ft. and 4 ft., respectively, based on the core’s overall geometry.

We offer standard and custom configurations, all manufactured to comply with your industry-specific standards. The magnetic core types available from Stangenes Industries are as follows:

  • Tape wound and cut cores
  • E-cores (three-phase cores)
  • Optifficient cores
  • Bars
  • C-cores (single-phase cores)
  • Pie-type cores (three-phase cores)/D-cores
  • Cased toroids (aluminum, machined nylon, injection molded, etc.)
  • Uncased toroids (gapped, cut in half, epoxy coated, etc.)
We can also accommodate orders for custom shapes and special configurations, so reach out to our team if you don’t see what you need in the list above.

Materials We Work With

We make our magnetic cores using high-quality materials to help ensure reliable and long-lasting performance. Materials we commonly use in our cores include the following:

Nanocrystalline Materials

Composed of crystallites under 100 nm in size, nanocrystalline magnetic cores of these materials typically provide high permeability with minimal power loss over a wide frequency range.

Amorphous Metals

These metals possess a glass-like, non-crystalline disordered atomic microstructure. The material imbues amorphous magnetic cores with exceptional magnetic properties such as low power loss and cost efficiency.

3% Grain-Oriented and 6.5% Non-Oriented Silicon Steels

As silicon steels offer high saturation magnetic flux density and affordable pricing, they’re a versatile material option. They come in both grain-oriented and non-oriented forms. The magnetic properties of grain-oriented silicon steels develop in the rolling direction. Those of non-oriented silicon steels, however, develop similarly in every direction.

50% and 80% Nickel Alloys

Nickel alloys deliver superior soft magnetic properties for cores, especially high permeability. They’re ideal for many magnetics-based devices, including inductors, amplifiers, and transformers.

Supermendur®

Supermendur is a cobalt-iron alloy featuring very high flux density. These characteristics make it a great option for applications in which mass and size are crucial, with common applications in the aerospace sector. Supermendur magnetic cores are useful for transformers and chokes.

Industries We Serve

Stangenes Industries has served an extensive range of demanding industries with tape wound soft magnetic cores since we opened our doors in 1974.

Common Applications of Our Tape Wound Soft Magnetic Cores

Tape wound magnetic cores provide reliable performance in a wide range of critical applications. The most common applications for these products include:
  • Antennas
  • Transformers
  • Sensors
  • Magnetometers
  • Chokes
  • Inductors
  • C/Ts
  • Motor stators and back iron
  • Converters
  • Filters
  • Common mode chokes
  • Solenoids
  • Energy harvesting
  • Inverters
  • Pulse transformers

Custom Design With Stangenes Industries, Inc.

Stangenes Industries brings proven expertise to our work in electromagnetic components and high-voltage systems. Drawing on half a century of experience, our custom capabilities allow us to tailor magnetic core solutions to your unique application-driven requirements. The team at MK Magnetics, our design and manufacturing subsidiary, utilizes quality nanocrystalline and amorphous metal materials as well as silicon steels and nickel alloys to deliver custom, high-performance tape wound soft magnetic cores to our diverse client base.

Our team is well-equipped to handle even the most ambitious projects within your timeline and budgetary constraints, delivering projects in as little as one month. To get started on your magnetic core solution, request a quote today.