Washington, Nov 15: Researchers from ETH Zurich’s Department of Power Electronics have developed a drilling machine that can achieve over one million rpm (revolutions per minute), which is a new world record.
Up to now, industrially deployed motors have normally reached 250,000 revolutions per minute.
But, the drive system developed by ETH Zurich, in cooperation with its industrial partners, can achieve over 1,000,000 rpm.