Magnetic Coils

A reliable source for Electric Coil information and leading Electric Coil Companies & Manufacturers.

A magnetic coil consists of a series of loops formed from a conductive metal wire, meaning it has the ability to transmit heat, sound or electricity. It then winds around a core or other form. Although the combination of sound and electricity and sound and heat conductivity are not generally characteristics of the same metallic materials, electricity and heat conductivity typically are.

Magnetic Coils Magnetic coils, which can also be referred to as electromagnetic coils or simply just coils, include all types of electrical coils that operate based on the principle of induction.

Leading Manufacturers

Sag Harbor, NY  |  631-725-0440

We are proud of the craftsmanship of our engineers. All of our products are made right here in the United States and we promise that these items are created from high quality resources. Our electrical coils are unique and efficient. We are dedicated to manufacturing the best coils around. Our teams utilize sophisticated to procedures to develop these top notch electrical coils. Give us a call today to learn more information!

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Sag Harbor Industries, Inc. $$$

Antigo, WI  |  800-826-9741

Johnson Electric Coil Company is a family owned manufacturer that specializes in custom transformers, coils and inductors. 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 Johnson make great parts for you!

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Johnson Electric Coil Company $$$

Tacoma, WA  |  253-324-3044

PolyTech Coil Winding consistently meets the prototype and production needs of companies developing products for inertial navigation equipment, earthquake detection seismometers, virtual reality headsets, MRI coils, bioengineering implants, transformers, musical instruments and the list goes on. We custom design and fabricate any electric coils for domestic and international companies.

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PolyTech Coil Winding $$$

Arcade, NY  |  716-532-2234

Communication Coil, Inc. has been designing and producing high reliability Filter Networks, RF Coils, Chokes, Inductors, Baluns, Toroids, Toroidal Transformers and Power Magnetics since 1944 to high-exacting standards for communications and signal processing in military, industrial, avionics, satellite, telemetry, marine, GPS and commercial applications.

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Communication Coil, Inc. $$$

South Haven, MI  |  269-637-5201

South Haven Coil has been manufacturing superior quality electromagnetic products since 1957,all made 100% in the USA. We are one of the nation's leading quality electromagnet manufacturer's.Specializing in electromagnets, wire harnesses & termination, molded coil assemblies,potted coils, bobbin-wound coils, toroids,laminated & ferrite transformers.We strive to deliver dock-to-stock components, on time and within budget.

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South Haven Coil $$$
placeholder image Sag Harbor Industries, Inc. Johnson Electric Coil Company PolyTech Coil Winding Communication Coil, Inc. South Haven Coil

While there are many different kinds of conductive metals, the most popular types in coils are copper, silver (although an expensive option) and aluminum.

Magnetic coils are widely used components, particularly in industries such as: automotive, in the ignition systems of internal combustion engines for vehicles such as cars, sports utility vehicles and vans, much like ignition coils; industrial manufacturing, in powering essential components such as electric transformers and vacuum tubes, electronics, for devices such as radio transmitters as well as the flashing lights in cameras and strobe lights; and medical, for imaging equipment such as x-ray machines as well as therapy equipment, which are also powered by high voltage coils.

A magnetic coil consists of a core and windings, of which there is generally a primary and a secondary winding. A winding is defined as a complete coil assembly with taps and all, and is a common characteristic of most electric coils. The primary winding is typically made from a much thicker piece of conductive metal wiring than that of the secondary wiring, as well as having much fewer turns than the secondary.

The use of both a primary and secondary winding in an electromagnetic component enables it to transfer electrical energy from one electric circuit to another electric circuit by means of a magnetic coupling with no moving parts. The core that the windings are wrapped around is typically cylindrically-shaped, although it can also be doughnut-shaped for toroidal coils, and is made from one of three materials: solid iron, solid steel or powdered iron. Powdered iron can be used in addition to solid iron or solid steel in order to increase the toughness of the core.

These materials are all ferromagnetic, meaning that the metals demonstrate a high level of magnetism. The magnetism of the core aids in the current flow from the coils through the principle of induction, which is the production of an electromotive force through variance of the magnetic flux linked with the circuit.

Magnetic Coils Informational Video