DCM Tech’s Brake Rotor Grinders are built with rugged quality. Explore DCM Tech’s entire line of Rotary Surface Grinders and Automotive Machine Products for your rebuilding needs. The DCM Tech SG7100/SG5100 Brake Rotor Grinders grind both sides in one setup. The wide array of optional and standard tooling, heavy duty construction features, and industrial heritage provide the best value in the industry. Standard machines come with manual feed. Power head positioning and autofeed are available to reduce operator effort and increase production. DCM’s exclusive Intelligent Autofeed not only advances the grinding wheel but senses motor load and backs off incrementally if the wheel loads up. At the end of the grinding cycle this incremental wheel retraction provides a final sparkout for the best finish and surface accuracy.