Digital Brinell Rockwell vickers hardness tester HBRV-187.5S, AC220V±5%, 50-60 Hz Acurate Brinell Hardness Tester
Technical specifications
1. The Power Source and the Voltage: AC220V±5%, 50-60 Hz
2.Time-delayed control: 0-60 seconds, adjustable
3.The Distance from the Indenter Center to the Instrument Body: 165mm
4.Overall Dimension (Length×Width×Height): 551×260×800 mm
5.The Net Weight of the Tester: 80kg (Approx)
6.Specifications of Rockwell Hardness
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Testing force(N) |
Initial Testing Force |
98.07(10kg) |
Tolerance ±2.0% |
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Total testing force |
588.4(60kg) |
Tolerance ±1.0% |
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980.7(100kg) |
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1471(150kg) |
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Indenter |
Diamond Cone Indenter |
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Ф1.5875mm Ball Indenter |
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Scales |
HRA |
HRB |
HRC |
HRD |
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Max height of samples |
175mm |
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7.The Tolerance of Rockwell Hardness Display Value
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Hardness Scale |
HardnessRangeof The Standard Testing Blocks |
The Max. Tolerance of Display Value |
Repeatabilitya |
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HRA |
(20~≤75)HRA |
±2HRA |
≤0.02(100－H)or 0.8 Rockwell Unitb |
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(＞75~≤88)HRA |
±1.5HRA |
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HRB |
(20~≤45)HRB |
±4HRB |
≤0.04(130－H)or 1.2 Rockwell Unitb |
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(＞45~≤80)HRB |
±3HRB |
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(＞80~≤100)HRB |
±2HRB |
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HRC |
(20~≤70)HRC |
±1.5HRC |
≤0.02(100－H)or 0.8 Rockwell Unitb |
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a:H is average hardness value b:Confirm as higher value |
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8.The Technical Specification of Brinell Hardness Tester
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Testing force |
294.2N(30kg) |
Tolerance ±1.0% |
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306.5N(31.25kg) |
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612.9N(62.5kg) |
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980.7N(100kg) |
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1839N(187.5kg) |
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Indenter |
φ2.5mm,φ5mmBall Indenter |
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Scales |
HBW1/30 |
HBW2.5/31.25 |
HBW2.5/62.5 |
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HBW5/62.5 |
HBW10/100 |
HBW2.5/187.5 |
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Eyepiece magnification |
15× |
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Objective |
2.5×(resolution 0.5μm),5×(resolution 0.25μm) |
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Max Height of Sample |
For 2.5×:Max Height is 95mm For 5×:Max height is 115mm |
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9. The Tolerance and Repetition of Displayed Value for Brinell Hardness Tester
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Hardness Block(HBW) |
Tolerance(%) |
Repeatability (%) |
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≤125 |
±3 |
3 |
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125＜HBW≤125 |
±2.5 |
2.5 |
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＞225 |
±2 |
2 |
10. Technical Specifications of Vickers Hardness
|
Test force |
294.2N(30kg) |
Tolerance ±1.0% |
|
980.7N(100kg) |
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Indenter |
Diamond Vickers Indenter |
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Scale |
HV30 |
HV100 |
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Eyepiece magnification |
15× |
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Objective magnification |
5×(Resolution 0.25μm) |
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Max. Height of Specimen |
115mm |
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11. The Tolerance and Repetition of Displayed Value for Vickers Hardness Tester
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Tolerance of Displayed Value |
Repetition of Displayed Value |
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Hardness scale |
Value of Hardness Block |
Tolerance of Displayed Value |
Value of Hardness Block |
Repetition of Displayed Value |
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HV30 HV100 |
≤250HV |
±3% |
≤225HV |
6% |
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300~1000HV |
±2% |
＞225HV |
4% |
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