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EMT Repairs All Industrial Motors

There isn’t a type of electric motor that Electric Motor Technologies has not already successfully repaired. Our experience spans from the largest Synchronous motors to the tiniest of high performance Servos.

Being located in one of our country’s major manufacturing centers has provided us with a broad customer base…and the experience that comes with it. Instead of catering to one industry, our expertise extends to diverse mix that includes auto manufacturing, food, paper, wood working, textiles, chemicals, and steel.

What’s the one thing they have in common? Motors drive their businesses and EMT keeps their motors running!

A DC motor converts direct current or DC electrical energy into mechanical energy. A DC generator is an electrical machine which converts mechanical energy into direct current electricity. A basic DC machine consists of a field assembly (stator)and an armature (a rotor and a commutator with brushes). These machines are either permanent magnet, shunt wound, series wound or compound wound. EMT is a leader in rebuilding DC machines, as we perform DC repairs on a daily basis. A DC motor is different than an AC motor as a DC motor needs to be under load before some problems arise, due to this fact, EMT performs a load test on every DC motor we repair.
Explosion proof motors are designed to contain explosions or flames produced within them (due to arcs, sparks, or flashes) without igniting the surrounding (external) flammable gasses or vapors. These motors will usually have special construction features such as an extended flame path in order to comply with the Underwriters Laboratory (UL) certifications.

While all motor shops are required to be certified by UL in order to repair Explosion Proof Motors, EMT was recently confirmed as the country’s top UL shop. We are responsible for checking all the fits and assuring that they are within compliance of the UL specifications. Motors that pass the UL inspection get affixed with a label containing EMT’s UL identification number, assuring that the motor has been properly rebuilt and recertified for UL Listing.
Hoist motors are used on cranes and hoists. These motors can be AC motors or in many cases, they are wound rotor motors. When these motors fail, plants are without the services of the crane or hoist, often resulting in a plant shut down. With its two-shift operation, rely on EMT to get your motor repaired quickly to get your plant back up and running in record time.
Servos are small but high-performance motors that rely on feedback and closed loop control to provide precise speed, torque or positioning. Having more precise motion control, these motors are best able to complete complex motion profiles and patterns. Due to their complexity, servos are the most challenging motor to repair. EMT has met the growing demand for servo motor repair by creating a dedicated, climate-controlled servo repair lab, staffed by factory-trained technicians using custom-made test fixtures.

Visit ServoMotorRepair.com for more information.
Synchronous Motors literally operate “in time with” or “in synchronism with” the power supply. The stator is wound for the similar number of poles as that of the rotor and fed with three phase AC supply, whereas the rotor winding is fed with DC supply. A synchronous motor will run either at synchronous speed or will not run at all. The only way to change its speed is to change its supply frequency. Synchronous motors are generally rated between 150 KW to 15MW and are used where high power at low speed is required, such as in rolling mills, chippers, pumps, and compressors. Due to the size and special characteristics of these motors, the repair shop needs to be experienced with this type of repair.
Traction motors are used on locomotives and electric busses. We are well versed on the intricacies of the repair methods for these motors. Heretic motors are refrigerant-cooled motors that are typically found on compressor motors for commercial chillers. These highly engineered motors take a proven repair facility like EMT to assure the repairs are completed correctly.
Wound Rotor Motors deliver speed control of heavy high-torque loads. The configuration and construction of wound-rotor motors are different from squirrel-cage motors, basically in the design of the rotor. Instead of rotor bars, a set of insulated rotor coils is used. Also, they incorporate brushes and slip rings. These types of motors are most commonly found on cranes, hoists, pumps, and chippers. EMT has wound many of these motors and can even replace the slip rings.
Pump Motors are AC Motors specially designed to meet industrial and commercial applications, from industrial waste water to commercial pool pump motors. Pump motors fall into several classifications. Jet Pump Motors are generally for use on chiller, condensate and other HVACR duty pumps, booster, irrigation, dishwasher, and parts washer pumps, along with many other commercial duty applications. Close Coupled Pump Motors meet the specific requirements of centrifugal pumps, in which the pump impeller is mounted directly on the motor itself. Fire Pump Motors are designed for fire pump applications. Pool and Spa Motors are used in commercial and residential pools and spas. Lastly, Vertical Pump motors are designed for use on turbine, mix flow and propeller pumps within the agriculture, turf, municipal and industrial markets.
 

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