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Motor Coils Manufacturers and Suppliers

IQS Directory provides a comprehensive list of motor coil manufacturers and suppliers. Use our website to review and source top motor coil manufacturers with roll over ads and detailed product descriptions. Find companies that can design, engineer, and manufacture motor coils to your company’s specifications. Then contact the companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product news articles. Whether you are looking for manufacturers of field coils, custom coils, or voice coils, this is the resource for you.

  • Sag Harbor, NY 800-724-5952

    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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  • Bristol, CT 800-825-4319

    Established in 1973, Classic Coil Company is a Contract Manufacturer of electronic coils. We manufacture coils for a variety of industries; winding wire gauges from 4-58 AWG. We are ISO 9001-2015 certified, ITAR registered and DFARS Compliant. Our Engineering services allow us to assist with design, reduce cost, and increase efficiency in production. Call or visit our website to learn more about our capabilities.

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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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  • Alpha, NJ 800-867-3526

    Since 1962, Torelco has been a supplier of electric coils and transformers of superior quality. We offer custom coils, solenoid coils, ferrite core coils & toroid wound coils to serve a range of industries. Markets served include medical, military, electronics, and industrial. When you work with us, our promise is to build to the exact specifications and meet the custom needs of our customers.

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  • 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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businessIndustry Information

Motor Coils

The driving force behind any type of electric motor or engine is a tightly wound, well-engineered, coil. These simple devices are designed to create a magnetic field that is used to direct power or energy to produce mechanical force. The reliable performance of these components is normally ignored since we seldom think about what makes a motor run and depend on them when needed.

What is a Motor Coil?

Any form of wire produces a magnetic field when current passes through it. To enhance the energy of the magnetic field the wires are coiled to create a field coil or electromagnet. Wound coils magnify the magnetic field with each winding and increase its force. This factor is what drives a motor and is the essential element in a motor coil.

The basic design of any motor begins with a stator and rotor that transmit the electrical current. The interchange between the stator and rotor creates a magnetic field that turns the rotor and produces mechanical energy. They are the basic elements of an electric motor coil.

In an electric motor, the current sent into the motor coil has a magnetic field that experiences force to make the rotor turn. The force, energy, and power are what makes the motor run.

Electric motors have a winding for the stator and one for the rotor, with the current for the stator being higher than that for the rotor. The motor coil is mounted on either the stator or rotor depending on the design of the motor and cost effectiveness.

Motor Coil Materials

As with any form of electrical product, the center of the manufacture of a motor coil is copper wire that has been lacquered or enameled. The main purpose of the coating is to reduce the amount of heat produced, which is the main cause of winding failures. In some cases, aluminum is used since it has a lower cost than copper.

Factors for Motor Coil Performance

One of the things that needs to be avoided when producing any form of coil is dead space, which is caused by the style of winding and insulation. The best types of coils have a high fill factor where the coils are wound in such a manner that there is a limited amount of dead space.

To have a highly efficient and productive coil, it should be wound in such a way that each layer fits neatly into the slot between the wires below. Wire gauge and bundle size have to be monitored closely with the bundle size referring to the number of turns in the coil. The gauge or diameter of the wire is critical in determining how easily the wire can be wound and its number of turns.