Amtech electronics [india] manufactures series hf 2 digital inverter range of industrial motion control systems. These digital inveters incorporate a proprietary pwm sinusoidal waveform to operate motors and spindles running at extremely high speeds. The digital inverter is available with enhanced pwm technology and igbt devices which result in perfect sine wave, sub harmonics free and without dc current in order to increase bearing and insulation life of high speed spindles. The company supplies these digital inverters in models from 3 hp to 200 hp. The digital inverters are available with salient features like 4 x 20 lcd display, 200% overload, output frequency up to 3000 hz, area gap eliminator, silent operation and resolution 0.01 hz. These inverters can be applied in internal grinding, surface grinding, lens polishing, crank pin grinder, center less grinder, die grinder.
