HR-200/300/400/500 series Rockwell hardness testing machines from Mitutoyo America Corp. reportedly offer enhanced performance with improved frames, better ergonomics and other productivity boosting features. The HR series hardness testers share a new frame design that provides maximum clearance for flexible workpiece positioning and to facilitate mounting on any flat surface. The testers feature a projected-nose indenter arm for easy access to interior and exterior surface. All HR series hardness testers are robust and suitable for production floor and lab settings, according to the company.

Even the entry-level HR-210MR Rockwell tester is feature-packed. It has a motorized major loading system to reduce the chance for operator error (common with conventional oil dash pot systems). The result is improved accuracy and repeatability. In addition, the HR210MR has a dial indicator readout with a preset function that automatically zero-sets the primary (minor) test force.