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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.

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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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Check out what's new online at Precision Econowind, manufacturer of the highest quality custom coils at reasonable prices, with on time delivery. Serving the coil industry for over 30 years, we're experienced with producing loudspeaker & medical industry coils, coils wound on customers' bobbins/tooling; freestanding, flat wire, edge wound, square, rectangle & shaped coils. Submit your specs today!
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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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Since 1962 the industry has known Torelco as a partner that supplies electric coils and transformers of superior quality. Toroids from .093in. inside diameter to 15in. outside diameter wound using wire sizes from 7 AWG through 46 AWG in open or cased styles, varnish or epoxy encapsulated. We offer custom coils, solenoid coils, ferrite core coils & toroid wound coils to serve a range of industries.
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We are a reliable manufacturer of electrical coils and our teams can adhere to a variety of specifications. If you have any specific requests then just let us know and we will work hard to make sure all of your needs are met. We are dedicated to customer satisfaction and our cost effective products are designed for longevity. Please give us a call today to learn more!
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Industry 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.






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