HRM-45型手动表面洛氏硬度计是一种普及型的，专门用于测试金属材料表面硬度的洛氏硬度计。本机采用机械式手动加载操作，无电器装置。具有操作简便，压痕微小，精度高等特点。
适用范围
表面淬火钢，铜、铝合金薄板，带钢,硬质合金钢，镀锌，镀铬，镀锡，材料表面热处理和化学表面处理的各种金属材料。
HR-45M Manual Superficial Rockwell Hardness Tester adopts mechanical and manual testing method, without electrical device. With simple appearance, it uses as popular type Rockwell Hardness testing instrument.
Usage Range:
Surface hardened steel, copper, aluminum alloy sheet, hard alloy steel, zinc layers, chrome layers, tin layers, surface heat treating and chemical treating materials, etc.
技术数据（Technical Specificati***）
洛氏标尺(Rockwell Scales)
HR15N, HR30N, HR45N, HR15T, HR30T, HR45T
初试验力（Initial Testing Force） 3Kg (29.42N)
试验力（All Testing Force） 15Kg (147.1N), 30Kg (294.2N), 45Kg (441.3N)
硬度读取
(Indication of Hardness Value) 表盘式（Dial ）
试件***大高度
Max. Height of Specimen 170mm
仪器尺寸(Overall Dimension) 520X240X700MM (长X宽X高, LXWXH)
仪器重量(Net Weight) 80 Kg
执行标准 (Carried Standard) GB/T230.2 ***标准、JJG112检定规程
GB/T230.2 Chinese Standard and JJG112 Inspection Rule
标准配件、附件
(Standard Accessories) 金刚石洛氏压头，直径1.5875mm硬质合金球压头，大平试台、中平试台、V型试台，硬度块
Diamond Rockwell Indenter, Diameter 1.5875mm Hard Alloy Steel Ball Indenter, Large Testing Table , Medium Testing Table and V-shaped Testing Table, HRC and HRB Hardness Blocks