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Permanent Magnet Motors

A reliable source for Permanent Magnet Motors information and leading Permanent Magnet Motors Companies & Manufacturers.

Permanent magnets are most commonly used in applications requiring constant magnetic force, making them ideal for electric motors. Often manufactured as fractional horsepower motors, permanent magnet motors typically run on a horsepower (HP) of 1 or less, such as ½ HP or ¼ HP. Able to be utilize alternating current (AC) or direct current (DC) electrical flow, permanent magnet motors can have a frame size of 42, 48 or 56, as defined by standards put in place by the National Electrical Manufacturers Association (NEMA). Read More…

Permanent Magnet Motors A permanent magnet motor is a type of electric motor that uses permanent magnets in its rotor assemblies in order to provide motion. The difference between a permanent magnet and a non-permanent magnet is that a permanent magnet retains its magnetism indefinitely, or until finally over-powered by external forces such as vibration, corrosion and interfering magnetic fields.
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Leading Manufacturers

Mankato, MN  |  612-746-7624

At Electric Motor solutions, our goal is to provide the best motors and equipment to meet the needs of your application. Products include linear actuators, electric motors, speed reducers, custom motors, vacuum cleaner motors, AC motors, and more.

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Electric Motor Solutions $$$

Stratham, NH  |  844-338-8114

When reliability and power are a must, the universal motors you find at ElectroCraft can operate with high efficiency, low voltage, and at a low cost. Applications that our universal electric motors serve include robotics, packaging, automotive, and medical equipment. Electric motor products include the CompletePower™ Plus Universal Drive, complete with a user-friendly configurable interface. For more details, contact ElectroCraft today!

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ElectroCraft, Inc. $$$

Taunton, MA  |  650 524 8822

Maxon Precision Motors, Inc., manufactures small, high-quality, precision DC brush and brushless motors used in medical, semiconductor, test and measurement, robotics, and manufacturing applications, among others. These advanced motors range in size from 4 to 90 mm and are available up to 500 watts. maxon also offers an extensive selection of gearheads, encoders, tachometers, and control electronics to complement its family of motors.

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Maxon Precision Motors, Inc. $$$

Monroe, WI  |  608-325-9161

At Carter Motor, some of the motors manufactured include AC universal motors, small motors, DC universal motors, DC permanent magnet motors, DC shunt wound motors and gearmotors, along with many others. All Carter Motor products are designed and assembled in the United States by hard-working employees. From engineers to shipping clerks, the staff takes pride in every part of the process.

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Carter Motor Company $$$

Preston, CT  |  860-889-8476

Piela Electric, Inc.! Specialists in electric motor and pump service, repair, and replacement. You'll never be just a number with us. We blend technical excellence with the personal attention you expect. Serving our customers is our number one priority at Piela Electric, Inc. We make every effort to get you back on-line efficiently by our pick up and delivery policy and we guarantee all of our work for one year.

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Piela Electric, Inc. $$$

Titusville, FL  |  321-268-5500

Rex Engineering manufactures gear motors, AC motors and DC motors. We also specialize in sub-fractional HP motors and design all products to your custom specifications. We are focused on providing excellent customer service, quality workmanship, competitive pricing, and constant design improvements for more reliable and versatile products. Contact us today for more information.

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Rex Engineering Corp. $$$
placeholder image Electric Motor Solutions ElectroCraft, Inc. Maxon Precision Motors, Inc. Carter Motor Company Piela Electric, Inc. Rex Engineering Corp.

Permanent magnetic motors are used in a wide range of applications, and industries that benefit from them include: automotive, for use in window wipers, powered seats, central locking systems and more; industrial, in pumps, conveyors, extruders and other processing, manufacturing and assembly equipment; HVAC, in systems and equipment such as fans and blowers; and construction, for heavy-duty materials handling equipment such as cranes and hoists.

Permanent magnet motors are typically separated into two main types based on design and electrical flow: brushless DC motors and permanent magnet synchronous motors. While both types are types of synchronous motors, meaning that the rotor rotates at the same speed as the magnetic field, a brushless DC motor is unique in that it operates based on DC, while most synchronous motors operate on AC, and that it has an electronic commutation system instead of a mechanical one.

Permanent magnet synchronous motors, on the other hand, are run on AC as is typical and induction is not required for magnetic field production. Both are designed in a similar style, with the basic components of an enclosure, rotor, axle, wound armature and permanent magnet. Also referred to as a coil, the wound armature rotates while the magnetic field remains stationary.

The rotation results from the magnet's reaction when the electrical current flows through specific points of the motor. One major difference in design between the two types of motors is that brushless DC motors have a trapezoidal-shaped back electromotive force (EMF) while permanent magnet synchronous motors have a sinusoidal-shaped back EMF. Back EMF refers to the voltage that is induced in the wound armature when the motor is rotating.

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