AC synchronous motors are the workhorses of market. With synchronous motor technology, speed is directly proportional to AC input frequency – for instance, at 120 Vac, 60 Hz, an AC synchronous electric motor will turn at 72 rpm. This speed could be varied by different the frequency, although most applications simply use gearing or a belt- or chain-drive system to attain the desired load speed.

We Drive Chain provide a comprehensive selection of AC synchronous motor products which includes continuous torque, high torque and hybrid choices to meet a wide selection of application requirements. Our synchronous motors provide many advantages, like the ability to begin within 1-1/2 cycles of the applied frequency and reach complete synchronous velocity within 5 to 25 milliseconds. They can also stop within 5 levels of rotation and reverse equally rapidly.

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