... Motorized Superficial Rockwell Hardness Tester adopts motorized testing method. Its testing force can be loaded, kept and unloaded ... copper, soft steel, synthetic resins, fricative materials, etc.Technical Specifications TYPEPROJECTHR-150DTHRM-45DTXHR-150Rockwell ScalesHRA, HRB, HRC, ... L×W×H)Net Weight80kgMax Height of Speciment170mmMax depth of speciments165mmPower SupplyAC220V±5%,50~60HzCarried ...