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Field Coil Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial field coil manufacturers and suppliers. Access our comprehensive index to review and source field coil manufacturers with preview ads and detailed product descriptions. These field coil companies can design, engineer and manufacture field coils to your specifications and application needs. A quick and easy to use request for quote form is provided for you to contact these field coil manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether it’s for a manufacturer of induction coils, solenoid coils, or custom coils.

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Here at Sag Harbor, we understand the importance for perfect fit, precision winding and reliable performance when it comes to the field coils you use. We have over 65 years of experience designing and improving upon standard field coil designs, and use it to provide quality, long lasting coils, backed by our ISO 9001:2008 quality certification.
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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 put an emphasis on manufacturing high quality electric coils. These systems are engineered for a variety of industries and we utilized state-of-the-art equipment to create these products with precision. Our teams can manufacture solutions with various materials including copper, gold, silver, and platinum. Call us today or visit our website to learn more!
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Industry Information

Field Coils

A field coil is an electromagnet used to generate a magnetic field in an electro-magnetic machine, typically a rotating electrical machine such as a motor or a generator. It consists of a coil wire through which a current flows.

In a rotating machine, the field coils are wrapped around an iron magnetic core that guides the magnetic field lines. The magnetic coil has two parts, a stator and a rotor. The stator is stationary and the rotor rotates within it. The magnetic field lines pass in a continuous loop, called a magnetic circuit, from the stator to the rotor and back to the stator again. Field coils, which energize, may be attached to the stator or the rotor. A rotating machine's magnetic path is characterized by poles, or locations at equal angles around the rotor at which the magnetic field lines pass from stator to rotor or vise versa. The stator and rotor are classified by the number of poles they have. Most configurations use just one coil per pole, but some older or simpler arrangements use a single fuel coil with a pole at each end. The wire used to wind a field coil must have a low resistance in order to reduce the amount of power it consumes and to reduce the production of waste heat by ohmic heating. This is important because excess heat in the wires is a common cause of failure. Typically, coils are wound with enamelled copper wire, which is sometimes referred to as magnet wire. However, due to increasing cost of copper, field coils are frequently being wound with aluminum.

Some time ago, before the general availability of lightweight permanent magnets, field coils were routinely used in loudspeakers. Today, field coils provide catalyst services for many usages, such as dynamos, alternators, generators, electric motors, starter motors, magnet coils and electric brakes. Non-rotating machines that use field coils include simple electromagnets as well as complex lab instruments such as mass spectrometers and NMR machines. To meet the complex needs of the market, field coils are available in many different types, including encapsulated, glass taped, tape wrapped, injection molded, transfer molded and loose wound, bobbin wound or self-supported.

Durable Field Coils Varnished Coil
Durable Field Coils - Sag Harbor Industries, Inc. Varnished Coil - Sag Harbor Industries, Inc.






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