HBMRRV(M)-250JMT Intelligent Programmed Digital Display Universal Hardness Tester
Main Features
- It has three hardness test methods of Brinell, Rockwell, and Vickers.
- Chinese and English menus, large digital LCD screen, rich menu content, and complete functions.
- Automatic loading and unloading of load, simple operation, a high degree of automation.
- Hardness automatic display, high accuracy, small indication resolution, no artificial operation error.
- It can automatically identify the minimum thickness of specimens and has a super-domain warning system.
- Automatic conversion among various hardness.
- It has three national intellectual property rights.
Application Range
- Rockwell: It is used to measure Rockwell hardness of ferrous, nonferrous metals and nonmetallic materials. It is suitable for measuring Rockwell hardness of heat treatment materials such as quenching and modulation.
- Vickers: Ceramics, steel, non-ferrous metals, non-metallic materials, carburizing layer, nitriding layer, electroplating layer. It is suitable for measurement of hardened layer and ultra-thin parts.
- Brinell: It is used to measure Brinell hardness of ferrous metals, nonferrous metals, nonferrous alloys, and powder metallurgy materials. It is widely used in metallurgy, forging, casting, bearing alloys.
Main Technical Parameters
| Items Modal | HBMRRV(M)-250JMT | Standard Configuration | ||
| Hardness Scale | Rockwell：A, B, C, D, E, F, G, H, K, L,
M, P, R, S, V, N, T, W, X, Y Brinell：HBW2.5/6.25，HBW2.5/15.625， HBW2.5/31.25, ，HBW2.5/62.5， HBW2.5/187.5, HBW5/25，HBW5/62.5，HBW5/125， HBW5/250，HBW10/100，HBW10/250 Vickers：HV3，HV5，HV10，HV20， HV30，HV50， HV100 |
l 15X Electronic Micrometer Eyepiece
1 l Large Flat Test Bench 1 l Small Flat Test Bench 1 l V-type Test Bench 1 l Slide Carriage Test Bench 1 l Foot Screw 4 l Power Cord 1 l Diamond Rockwell Indenter 1 l Diamond Vickers Indenter 1 l Φ1.588 Tungsten Carbide Ball Indenter 1 l Φ2.5 Tungsten Carbide Ball Indenter 1 l Φ5 Tungsten Carbide Ball Indenter 1 l Hardness Block 5 Objective Lens （HBRV(M)-187.5D1） l 2.5X Objective Lens 1 l 5X Objective Lens 1 Objective Lens（HMRV(M)-45D1） l 5X Objective Lens 1 l 10X Objective Lens 1 Optional Accessories l Φ10mm Miniature Flat Test Bench l Φ10mm Miniature V Flat Test Bench l Hardness Blocks of Other Specifications |
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| Test Force | Kgf:3, 5, 6.25, 10,15, 15.625, 20, 30, 31.25,
45,50, 60, 62.5, 100, 125, 150, 187.5, 250 N: 294, 306, 588, 613, 980, 1471, 1839 15, 30, 45 147, 294, 441 |
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| Measuring Range | 20~88HRA,
20~70HRC, 20~100HRB， 8~650HBW, 14~1000HV |
70~94HR15N,
42~86HR30N, 20~77HR45N, 67~93HR15T, 29~82HR30T, 10~72HR45T, 70~100HRE, 50~115HRL, 50~115HRM, 50~115HRR,14~1000HV |
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| Magnification of Measurement System | 37.5X（2.5x objective lens ）75X（5x objective lens ） | 75X（5x objective lens ），150X（10x objective lens ） | ||
| Measurement Resolution of Microscope | 0.5μm（37.5X）,
0.25μm(75X) |
0.25μm(75X),
0.125μm(150X) |
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| Indication Resolution | 0.1 hardness unit | |||
| Indication Accuracy | It conforms to GB/T 230.2, IS0 6508;
GB/T4340.2, ISO-6507; GB/T231.2, ISO 6506 |
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| LCD Display Content | Hardness Value, Hardness Scale,
Total Test Force, Keeping Time, Field Temperature, Upper and Lower Limits, Measurement Times, Average Value |
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| Duration of Test Force | Adjustable in 1-99 seconds | |||
| Max Height of Specimen | 195mm（Rockwell），
145mm（ Vickers, Brinell ） |
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| Distance from Center of Indenter to Machine Wall | 140mm | |||
| Output | Built-in Micro Printer,
RS232 Serial Interface. |
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| Voltage Supply | 220V/50-60HZ | |||
| External Dimensions | Length* Width * Height 520*175*700mm | |||
| Weight | Net weight ：80kg， Gross weight ：97kg | |||
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