Specialty Power Transformers to Meet your Custom Needs and Applications

Specialty Power Transformer
At Custom Coils, we strive to meet every transformer product need of our clients. Besides our product line, we also offer specialty power transformers. These refer to custom made or modified transformers.


Custom Designs

We can provide various types of specialty transformer designs. They can be designed to be dry, open, or liquid filled transformers

  • Dry type transformers can be provided as open or with metal enclosures. Open transformers are air cooled

  • Transformers can create and give off a lot of heat when placed in metal enclosures. For such requirements, we can design the transformer with convection or other cooling systems.

  • High temperature varnishes and epoxies are our products of choice when designing higher temperature transformers.

  • We can also design the metal enclosures with specific materials for hazardous applications

  • For more specialized applications, we can offer clients multi-winding transformers. These consist of multiple primary and secondary windings. The beauty of these products is that they can be either step-up or step down transformers.

  • To ensure that we meet every requirement, we can also design the transformers with specific custom board components. This can range from AC-DC conversion to variable output power transformer taps.

Features and Specifications

The art of designing specialty power transformers is predicated on the ability to wind different bobbins and forms that support the geometry of the core design. Over the decades, Custom Coils has acquired winding equipment to support winding almost any core geometry available. At the same time, care was taken to develop specialized winding techniques for high voltage and high current applications. Availability of special materials also plays a very important role in specialty power transformers.

Custom Coils uses American-made magnet wire as the foundation of our products. This, coupled with the ability to source core geometries and materials from throughout the world, allows us to develop state-of-the-art custom designs for our customers. Since many of our specialty power transformers operate in very extreme and harsh environments, we have many different two-part epoxies and encapsulation compounds we use to protect them.

Related Products



Custom Coils’ specialty power transformers can be used in a variety of applications. A small list is provided below.

  • Generators
  • Plasma systems
  • Electrical drives
  • Microwave ovens
  • Oil and gas drilling
  • Large industrial motors
  • Pollution control systems
  • High power radar systems

With our specialty power transformers, Custom Coils maintains its position as a leading transformer manufacturer. The success of our transformers in various industries is due to our knowledge, use of the latest equipment, and innovative solutions. As our name suggests, we are always willing to work with clients with custom requirements. Contact us if you have a specialty transformer requirement

Have a question about speciality power transformer or any other custom magnetic assembly?

Ask our skilled experts can solve all your queries!

Contact Us At 605.934.2460


Custom Coils
PO Box 348
109 Iowa Street
Alcester, SD 57001-0348

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