Portable Metal Hardness Tester

PRO ENGINEERS is the most established and trusted brand for portable metal hardness testing. PRO ENGINEERS uses the well accepted dynamic Leeb hardness testing principle. An impact body with a hard-metal test tip is propelled by spring force against the surface of the test piece. Surface deformation takes place when the impact body hits the test surface, which results in loss of kinetic energy. This energy loss is detected by comparison of impact and rebound velocities, vi and vr, measured at a specific distance from the surface immediately before and after the impact.