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Electrical Coil Manufacturers and Suppliers

IQS Directory provides an extensive list of electrical coil manufacturers and suppliers. Utilize our website to review and source electrical coil manufacturers with our easy-to-use features which allow you to locate electrical coil companies that will design, engineer, and manufacture electrical coils for your exact specifications. Our request for quote forms make it easy to connect with leading electrical coil manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for edge wound electrical coils, rewind electrical coils, or colloidal electrical coils.

  • Sag Harbor, NY 800-724-5952

    Serving electromechanics, electromagnetics and electronics since 1946, Sag Harbor Industries is your ISO 9001:2000 certified partner for manufacturing custom wound and finished electrical coils - faster, better and more economically! Complete prototype to production capabilities all products. ISO 9001 certified, we are a service partnership company with value added services.

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  • Antigo, WI 800-826-9741

    We can supply you with top of the line electrical coils that are reinforced durable materials. The attributes of our electrical coils are second to none and we will promptly respond to all of your questions. It is our objective to manufacture electrical coils with precision and without fault. We have raised the standard for innovation in our industry. Contact us today to learn more!

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  • Bristol, CT 860-584-0927

    We are an ISO 9001:2015 certified company which is internationally known for manufacturing high quality electromagnetic-coils. It is our goal to provide quality products, a commitment to speedy delivery, and competitive pricing. We understand that every application is unique, so we encourage you to contact us to discuss your specific requirements. Call us at 1-860-584-0927 and find out what our 50+ years of experience can do for you.

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  • North Manchester, IN 260-982-8508

    At Custom Magnetics, we manufacture transformers and coils, custom designed, for electrical and electronics industries. Our products often serve applications such as audio amplifiers, intercoms, power supplies, transducers, transportation, power generation, etc. Many types of transformers are produced including laminated, toroidal, ferrite cores of all shapes and sizes, and R-Core. Call today!

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  • McAllen, TX 888-664-9495

    Industrial Coils, LLC is a leading manufacturer that specializes in high quality custom solenoid coils wound to customer's specifications From three phase isolation transformers to single phase inductors and chokes, we carefully design our products to meet your exact specifications. Our experienced engineers are available to assist during every step of the process. Let us make great parts for you!

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  • Marlton, NJ 800-822-9190

    Repco Inc. was founded in 1976. Our name stands for Replacement Electrical Parts Co. The products currently sold by Repco are electrical contacts and coils for industrial control and carbon brushes for industrial motors. The business is located approximately 12 miles east of the city of Philadelphia in Marlton, NJ.

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businessIndustry Information

Electrical Coils

Electrical coils, an alternative name for electric coils, consist of a series of loops manufactured from conductive metallic wire and wound around a ferromagnetic core. In addition to transmitting heat, sound or electricity, electrical coils are required to perform several different functions.

The many attributes of electrical coils enable them to meet a wide range of application requirements for industries including: industrial manufacturing, which utilizes many molded coils or encapsulated coils for protection against corrosive environments, and electrical solenoid coils for remote equipment; automotive, in which induction coils, such as ignition coils, are essential for the operation of internal combustion engines; electronics, for equipment and devices such as electric transformers, radio transmitters, cameras and strobe lights; medical, for use in imaging and therapy equipment; and power generation, which often use high voltage electrical coils for supplying power to warehouses and other industrial, commercial and residential buildings. In order to better fit the specifications of the broad spectrum of applications they are used in, there is a multitude of electrical coil types that differentiate in terms of wire gauges, coil diameter wire lengths and core materials. All of the coil specifications can be customized to meet diverse requirements.


The basic construction of an electrical coil is typically that of its core, a primary coil and a secondary coil. However, this simple design can quickly become complicated with the addition of more coils, which are also referred to as windings. A winding is defined as a complete coil assembly with taps that are used to connect to current flow either from an input or to an output. While just one primary winding can be used at times, most applications require the addition of secondary winding, and some can even require tertiary windings (which are known as tickler coils). An electric transformer, for example, is an electrical coil that has a primary and a secondary winding, enabling it to transfer electrical energy from one electric circuit to another electric circuit without any moving parts. Not only does the number of windings affect the function of the electrical coil, but the coil taps can as well. Coil taps are defined as points in the wire coil that consists of an exposed conductive patch and mostly differ in size. For example, when an electrical coil has a large diameter, the amount of self induction is similarly large and the current can become problematic. It will try and flow on the inside of the wire instead of on the outside. Another example would be that of multi-layered electrical coils, which have issues with interlayer capacitance, defined as an electrical phenomenon whereby an electric charge is stored, requiring a spiral-shaped coil.

Electrical Coils
Electrical Coils
Electrical Coils - Sag Harbor Industries, Inc.
Electrical Coils - Sag Harbor Industries, Inc.



Electrical Coils Informational Video