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MITECH MHBS-3000Z Touch Screen Automatic Tower Digital Display Brinell Hardness Tester
Mitech MHBS-3000Z Touch Screen Automatic Tower Digital Display Brinell Hardness Tester, based on the mechanical principle of hard alloy indenter pressing into the sample surface to produce indentation, realizing the material hardness measurement by measuring the diameter of the indentation, The use of photoelectric sensor system to high magnification optical measurement, equipped with automatic turret device, high sensitivity touch screen operation interface, can achieve automatic loading and unloading of electronic, easy to operate, high detection efficiency. It can meet the hardness testing requirement for the quality control and qualified assessment of the workpiece sample. It is widely used in metal processing and manufacturing, various metal material’s failure analysis and other fields like colleges and research institutions. It’s to improve the work efficiency, product qualification rate, saving production costs necessary professional precision testing equipment.
Technical specifications | Technical Parameters |
The power series | 612.5N(62.5kgf),980N(100kgf),1225N(125kgf),1837.5N(187.5kgf), 2450N(250kgf),4900N(500kgf),7350N(750kgf),9800N(1000kgf),14700N(1500kgf),29400N(3000kgf) |
Measuring range | 8 – 650 HBW |
Conversion scale | HRA,HRB,HRC,HRD,HV,HK,HBW,HR15N,HR30N,HR45N,HR15T,HR30T,HR45T |
Brinell scale | HBW2.5/62.5,HBW2.5/187.5,HBW5/125,HBW5/250, HBW5/750,HBW10/100,HBW10/1500,HBW10/3000, HBW10/250,HBW10/500, HBW10/1000 |
Testing Force Application Mode | Automatic (loading, holding, unloading) |
Indenter objective lens conversion mode | Automatic |
display usage | LCD touch screen |
Microocular magnification | 20X |
Test force holding time | 0~60s |
Minimum division | 0.001 mm |
Max sample height | 230mm |
Max distance from head to body | 140mm |
Voltage | AC 220V/50Hz |
Size | 620*270*900mm |
Total Weight | 130kg |
Indication accuracy
Standard Block | Indicating Error%(H) | Repeatability Error |
≤125 | ±3 | 0.03`d |
125˂HBW≤225 | ±2.5 | 0.025`d |
>225 | ±2 | 0.02`d |
H:Hardness of standard block `d: Indentation diameter(average)
Hardness is not a simple physical quantity, but a reflection of the material elasticity, plasticity, strength and toughness .and hardness test is the most simple mechanical testing method to determine the metal material performance. Also one of the important means to judge the products quality.
Brinell hardness test: Test force(F) is on the steel ball with certain diameter(D) , pressed on sample surface. After a period of time, cancel the force. The indentation diameter is get by measuring with micrometer ocular,thus to calculate the average pressure(N/mm²).Then we can get the Brinell hardness of the sample as below:
Tips:F—Test force on steel ball,unit:N
D—Diameter of steel ball ,unit:mm
d—Indentation diameter,unit:mm
0.102—Rule coefficient
Features
Applied condition
Application field
Working conditions
Configuration
Standard Configuration | No. | Item | Quantity | Note |
1 | Main body | 1 | ||
2 | 20×Lens | 1 | ||
3 | φ2.5mm ball | 1 | ||
4 | φ5mm ball | 1 | ||
5 | φ10mm ball | 1 | ||
6 | Small testing table | Diameter 80mm | ||
7 | Large testing table | 1 | Diameter 200mm | |
8 | V-shape testing table | 1 | For cylindrical sample | |
9 | Standard Hardness Block HBW/3000/10(150-250) | 1 | ||
10 | Standard Hardness Block HBW/1000/10(75~125) | 1 | ||
11 | Standard Hardness Block HBW/187.5/2.5(150-250) | 1 | ||
12 | Fuse wire(2A) | 3 | ||
13 | RS232 Cable | 1 | ||
13 | Power line | 1 | ||
14 | Plastic dust cover | 1 | ||
15 | Attached files | 1 | ||
16 | Instrument case | 1 | ||
Optional Configuration | 1 | Brinell measurement system |
Maintenance and care
Pulley and cap