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Variable Speed Motors

A reliable source for Variable Speed Motors information and leading Variable Speed Motors Companies & Manufacturers.

The capacity for an engine to adjust speeds is an important feature, especially for applications in which variable speed motors are commonly used such as pumps, elevators, conveyors and machining tools. Read More…

Variable Speed Motors A variable speed motor uses VFDs, or variable-frequency drives, to direct the rotational speed of an AC electric motor. A variable speed motor will do this by controlling the frequency of the power being supplied to the universal motor from an electrical source, thus controlling its output power.
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Leading Manufacturers

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. $$$

San Leandro, CA  |  510-567-0630

Our specialty is electrical mechanical apparatus remanufacturing. We are the largest repairer of electric motors such as AC motors, DC motors, fractional HP motors and other small specialized equipment to 30,000 HP. In addition, we sell new electric motors (AC & DC), gearmotors and gearboxes.

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Koffler Electrical $$$

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 $$$

Mauston, WI  |  888-467-8288

Dumore Corporation is a leading designer of DC motors, custom fractional horsepower motors, gear motors and universal electric motors. Our high-quality fractional motors are used in a variety of applications and markets. In business since 1913, we have continued to manufacture our custom high-quality UL listed OEM motors. Dumore DC motors and gear motors are designed for complete, cost effective customization to meet your exact requirements or work with our team for a custom solution!

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Dumore Corporation $$$

Reedsburg, WI  |  608-524-4341

Hankscraft has been in the fractional horsepower motors industry since 1920. With our extensive background in the industry and years of experience we are a trusted manufacturer and supplier. our decades of contract manufacturing experience, have given us the knowledge and expertise to have an extensive and growing list of capabilities available for our customers worldwide.

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Hankscraft, Inc. $$$
placeholder image ElectroCraft, Inc. Koffler Electrical Carter Motor Company Dumore Corporation Hankscraft, Inc.

Three-phase motors are most commonly used in variable speed motors, although the small electric motor itself can be a single-phase unit. They are widely used for fractional horsepower, or FHP motor applications because of their ability to control voltage and output current. A variable speed motor is often used in heating and cooling ventilation applications.

Variable Speed Brushless Type DC Motor Variable Speed Motors - Electric Motor Solutions

In such applications, the motor gradually increases to meet its maximum speed rather than starting at its maximum (and only) speed, like fixed speed motors. The speed in a variable speed motor is dependent on the number of poles or winding sets that are built into the motor itself, allowing the speed to increase or decrease in stages. The progressive movement towards high speed eliminates noisy start up sound and reduces wear on components. The variation of speed also allows for precise control of airflow.

Variable speed motors are typically simple to design and fabricate and are an affordable option for most manufacturers. Consisting of a small motor, a controller and a types of interface, they offer reliable and low maintenance options as there are less replaceable parts than other types of motors. The metal bearings of the motor may need to be replaced after an extended period of time as these components are inevitably subject to wear and tear.

There are numerous advantages to implementing the use of small electric motors and they are used in a wide variety of applications in almost every industry. A variable speed electric motor will create no waste emissions and improve air quality. They are cleaner and less expensive to run than fuel-powered motors and because of their efficiency, variable speed motors also use less electricity on average than a fixed speed motor, thus further saving operating costs for a manufacturer.

They are the preferred motor of choice for many appliances in both commercial and domestic applications where AC power is readily available such as washers, dryers, fans, vacuum cleaners and air-conditioning units.

Variable Speed Motors Informational Video

 

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