AC synchronous motors will be the workhorses of sector. With synchronous engine technology, speed is straight proportional to AC input frequency – for example, at 120 Vac, 60 Hz, an AC synchronous engine will turn at 72 rpm. This speed can be varied by different the frequency, although most applications simply use gearing or a belt- or chain-drive program to achieve the desired load speed.

We provide a comprehensive range of AC synchronous motor products including continuous torque, high Leaf Chain torque and hybrid options to meet a wide variety of application requirements. Our synchronous motors offer many advantages, like the ability to begin within 1-1/2 cycles of the applied frequency and reach full synchronous swiftness within 5 to 25 milliseconds. They are able to also stop within 5 levels of rotation and reverse equally rapidly.

We offer two families of AC synchronous motors in the ST/SN Series and KS/SS Series. High performance motors in these series are offered in NEMA 23, 34 and 42 frame sizes, with two- and three-phase models obtainable in each size. Resistor-capacitor kits are available for operating two-phase synchronous motors from a single-phase power resource. We also offer hazardous duty AC synchronous motors, certified to UL Class I, Division 1, Group D; UL Class 1, Division 2, Groups E, F and G; and ATEX standards.