Profile: Okmarts specializes in providing industrial equipment and parts. We stock and sell compressors, servo motors & drives, HMIs, encoders, light curtains, sensors, VFDs, soft starters, thyristors, solenoid valves and coils, air cylinders, gearboxes, linear guideways, actuators, transmitters, flowmeters, power supplies, transformers, expansion valves, and circuit breakers. Variable frequency drive (VFD) converts power in the motion control system. The motion control system now contains a variety of disciplines. It generally includes AC drive, high frequency power converter, digital, intelligent and networked control.