DC or “direct current” motor usage has been on the decline for many years and for several reasons. The main reason for this shift is the difference in maintenance cost between a DC motor and an AC or “alternating current” motor. DC motors, due to their very nature, will require periodic maintenance (most notably brush replacement) as well as periodic maintenance to the commutator while AC Motors require very little to no maintenance. For years DC motors had the advantage over AC motors when it came to speed and torque control. With new technologies such as AC Variable Frequency drives, those advantages have disappeared. Additionally, the upfront cost of an AC motor is generally much less than that of a DC motor.
Another reason for DC motors’ decline in popularity is due to the far more versatile nature of AC motors. Baldor AC motors have many applications in both commercial and industrial applications. Unlike DC motors, AC motors raise and lower voltage without mechanical assistance via a rotating magnetic field. This means more efficient motors, which leads to more efficient machines. In fact, Baldor Industries is investing in research, such as synchronous reluctance motors and permanent-magnet rotor technology, to make AC motors even more effective. As industrial and commercial demand for higher efficiency levels rises, it’s important to trust a company that works hard to meet those demands.
Choose from State Motor and Control’s single and 3-phase selection of Baldor products to find exactly the AC motor to meet your needs. Whether you’re running a machine press or pumping water, State Motor and Control Solutions has the solution for you.