R(D)-45D1型电动表面洛氏硬度计具有性能稳定，结构牢靠、安全，操作方便等特点。采用自动加卸试验力方法，保荷时间稳定，消除了人为操作误差，示值精度高。
　　该硬度计适用硬质合金、渗碳钢、淬火钢、硬铸铁及软钢、铝合金、铜合金和可锻铸铁的硬度的测定。
　　
This tester is a popular type Rockwell hardness testing machine, the construction is firm and reliable and safe, operating convenience etc. characteristics.The adoption adds to unload automatically to experiment the dint method, protecting time of stable, dissolves artificial operation error margin, show the worth accuracy high.
That degree of hardness accounts to be applicable to the black metals and have the Rockwell surname degree of hardness measurement of the color metals.It is extensive to be applicable to factory car with calculate the section.
　
主要技术参数Specifications：
初试验力（N）：29
Preliminary test force:29
总试验力（N）：147，294，441
Total test force(N):147，294，441
总试验力保持时间（S）：0-30
Total test force dwell time(s):0-30
试件允许最大高度：170mm
Max height of speciments(mm):170
压头中心到机身距离：140mm
Distance from Indenter's center to OuterWall:140mm
硬度计外形尺寸（mm）:463×175×660
Machine Size(DXWXH)(mm): 463 ×175×660
电源电压：AC220V/50HZ
Power Supply: AC220V/50HZ
硬度计重量（kg）:75
Weight(kg):75
硬度值范围：
HR15N：70～91
HR30N：42～80
HR45N：20～70
HR15T：73～93
HR30T：43～82
HR45T：12～72