HG17SD SILENT : Designed for maximum silence. Discover the most powerful single-disc machine on the market, equipped with a motor of up to 4 HP. The HD series has been meticulously designed for professionals who require a robust and reliable machine for heavy-duty work or to cover large surfaces. With its 4 HP motor, it stands out as the most powerful single-disc machine available. We also offer a model with a 2.5 HP motor. Completed by a wide range of accessories, this machine represents the ideal and economical solution for every floor treatment need.