Main Features: Model HBRV-187.5E Electric Brinell, Rockwell & Vickers hardness tester have Brinell, Rockwell, Vickers three kinds of test methods, test the multi-purpose force 7 multi-function hardness tester, can satisfy user's requirements of hardness testing, test force is applied and the, the Netherlands, unloading automatically. Wide utilization, convenient operation, it is industrial and mining enterprises, scientific research colleges and universities stock hardness testing machine. Usage Range: Surface hardness steel, steel, hard alloy steel quenching, all kinds of coating and annealing steel, nonferrous metal, hardening, and also for thin plate is soft metal, the surface heat treatment and chemical processing, etc Technical Specifications: Model | HBRV-187.5E | Brinell Scale | HBW2.5/31.25 HBW2.5/62.5 HBW2.5/187.5 HBW5/62.5 | Testing force | 31.25kgf(306.5N)62.5kgf(612.9N)187.5kgf(1839N) | Rockwell Scale | HRA HRB HRC HRD HRE HRF HRG HRK HRH | Testing force | 60kgf(588N) 100kgf(980.7N) 150kgf(1471N) | Vickers Scale | HV30 HV100 | Testing force | 30kgf(294.2N) 100kgf(980.7N) | Min measuring unit | Brinell:0.004mm Vickers: 0.002mm | Max Height of Specimen | Rockwell: 175 Brinell, Vickers: 145mm | Net weight | 60kg | Power supply | AC220+5%,50~60Hz | Overall Dimension (mm) | 520*200*700 | Duration time | 2~60s | Hardness measuring range | Rockwell: 20~100 Vickers: 8~2900 Brinell: 8~650HBW | Standard Accessories: Item | Quantity | Item | Quantity | Rockwell, Vickers Indenters | 1 | Diameter 1.5875,2.5,5mm Hard alloy ball indenter | Each 1 | Measurement microscope | 1 | floodlight | Each 1 | Hardness blocks | 5 | Large, Medium, “V” shaped Testing Table | Each 1 | Power cable | 1 | Slipped Table | 1 | Objective | 1 | Manual | 1 | |