Custom Coils

Custom Coils Custom Coils, established in 1967, offers a wide range of magnetic components including high voltage Spread over 17,000 sq. ft. of manufacturing plant.

With more than 54 years in the magnetics business, Custom Coils has set the standard for manufacturing custom-designed electromagnetics with the high quality and value. Custom Coils is a distinguished company in providing world class custom transformers and inductors. Our highly qualified staff of engineers work together to ensure that every custom design project is manufactured to our customer’s specifications.

Choosing the right trigger transformer is critical for achieving reliable high-voltage pulse performance. Our new blog e...
08/18/2026

Choosing the right trigger transformer is critical for achieving reliable high-voltage pulse performance. Our new blog explains the key factors to consider, including pulse voltage, rise time, turns ratio, isolation, winding configuration, and when a custom trigger transformer may be the right solution.
https://shorturl.at/nGXA3

Building a high-performance power system? Start with the right custom flyback transformer design. Learn how proper speci...
07/27/2026

Building a high-performance power system? Start with the right custom flyback transformer design. Learn how proper specification can reduce risk, improve efficiency, and ensure compliance in demanding applications.

https://tinyurl.com/3d63bkky

This 4th of July, we celebrate the freedom to innovate, the passion to build, and the commitment to quality that defines...
07/04/2026

This 4th of July, we celebrate the freedom to innovate, the passion to build, and the commitment to quality that defines American manufacturing. Have a safe and wonderful Independence Day! 🇺🇸

Ever wondered why 12V spark igniters are so widely used in industrial burners and furnaces? Our new blog covers their wo...
06/24/2026

Ever wondered why 12V spark igniters are so widely used in industrial burners and furnaces? Our new blog covers their working principle, voltage output, and key industrial applications.
https://tinyurl.com/58xj6py7

When quality matters, trust Custom Coils for High-Quality Single Phase Power Transformers built to exceed industry stand...
06/22/2026

When quality matters, trust Custom Coils for High-Quality Single Phase Power Transformers built to exceed industry standards.
https://tinyurl.com/4me47cuv

This Memorial Day, we remember and honor the brave heroes who made the ultimate sacrifice for our freedom. Custom Coils ...
05/25/2026

This Memorial Day, we remember and honor the brave heroes who made the ultimate sacrifice for our freedom. Custom Coils proudly pays tribute to their courage, dedication, and service.

When quality matters, trust Custom Coils for High-Quality Single Phase Power Transformers built to exceed industry stand...
05/12/2026

When quality matters, trust Custom Coils for High-Quality Single Phase Power Transformers built to exceed industry standards.

https://tinyurl.com/4me47cuv

Choosing the right single-phase transformer isn’t always easy. Standard models may miss voltage, space, or efficiency ne...
02/26/2026

Choosing the right single-phase transformer isn’t always easy. Standard models may miss voltage, space, or efficiency needs. Learn how custom coil designs boost performance and reliability.
Link:https://tinyurl.com/bdhea6e2

🎄 May this Christmas bring warmth & joy, and the New Year open doors to success and happiness! ✨
12/25/2025

🎄 May this Christmas bring warmth & joy, and the New Year open doors to success and happiness! ✨

Address

109 Iowa Street
Alcester, SD
57001

Opening Hours

Monday 7am - 4:30pm
Tuesday 7am - 4:30pm
Wednesday 7am - 4:30pm
Thursday 7am - 4:30pm
Friday 7am - 11am

Telephone

(605) 934-2460

Website

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