Motor testers are used to determine if repairs are necessary and to perform maintenance and troubleshooting in order to minimize downtime and avoid repair costs. A routine test can help maintain the motor’s efficiency so that the lifespan of the equipment will be extended. Read More…
Leading Manufacturers
SAKOR Technologies, Inc.
Owosso, MI | 989-720-2700We provide dynamometer test controls and equipment for a wide range of applications. Our test cell control system is compatible with all types of dynamometers, including AC & DC motoring dynos & Water Brake Systems. Our products all include the durability & quality customers expect from SAKOR. Our dynamometers are powerful & affordable for the automotive, aerospace & heavy equipment industries.

Phoenix Dynamometer Technologies LLC
Sturtevant, WI | 818-746-3649Phoenix Dynamometer Technologies LLC offers the most comprehensive approach to water re-circulation systems, data acquisition systems, and dynamometers in the industry. Along with these high performance products, we also offer business continuity and a competitive advantage for our customers. Come and experience the kind of service that sets us above our competitors. We would love to serve you...

Power Test, Inc.
Sussex, WI | 262-252-4301Since our inception we have been committed to manufacturing top of the line dynamometers that will stand up to the rigorous wear and tear of every day application. Our products serve in many diverse industries including automotive, automation, industrial as well as a broad variety of others! To learn more about what we may be able to do for you visit our website today for more information!

Burke E. Porter Machinery Company
Grand Rapids, MI | 616-234-1200Since 1953, our customers have helped us earn the reputation of a technology pioneer and global leader in Vehicle Test Systems. As the manufacturer of the first fully electric DVT roll-brake machine, we paved the way for innovation in automotive and heavy duty vehicle testing, supplying end-of-line equipment, dynamometers, and tire & wheel assembly systems to major OEMs throughout the world.

Motor Tester List
Motor testers have a variety of operating procedures to perform electric motor impulse testing, motor rotation testing, wound rotor motor testing, electric motor insulation resistance testing and more. This equipment can operate offline without a power supply or online with applied power and a running motor.
Depending on the application, motor testers may be portable, standalone or installed in the equipment being tested. Because of the widespread usage of both gas and electric motors, motor testers are very important to many industries. Production and manufacturing companies rely on functioning and efficient motors for every process that requires power or motion. These machines may also be used for vehicles.
Motor testers are available in a range of styles, sizes, methods and abilities. Top quality testers perform more complicated analyses, storing and exporting data and graphing it on digital displays. Generally, motor testers work by using voltage probes and current probes attached to input wires of the motor to connect internal voltmeters, ammeters and ohmmeters to the system (only for electrical motors).
Some use a non-contact speed sensor to measure the motor shaft speed and determine the number of rotations per minute. Other options and parameters include a load point test where the motor is tested while under a full load, no load or a locked rotor.
Direction, torque, current, voltage, power, efficiency and cut-out speed may be determined by motor tester equipment because of the range of available options that meet the variety of needs. Much like a torque tester, motor testers may take torque measurements by using a trunnion mounting of the loading device where the brake is mounted so that its enclosure is able to rotate freely around the shaft.
An electronic scale takes the measurements. Transducers coupled with the shaft between the motor and the brake is very fast and accurate with less than 0.1% inaccuracy. For motor power, testers are able to handle speeds from less than one horsepower to several hundred.