
Overview
Mitech MHRS-150-XYZ automatic Rockwell hardness tester, based on the mechanical principle of conical diamond or hard alloy indenter pressing into the sample surface to produce indentation, realizing the material hardness measurement by measuring the depth of the indentation. With high automation degree, accurate measurement, equipped with automatic turret and high sensitivity touch screen, it can ensure automatic loading and unloading of electronic, automatic indentation marks, automatic generation of inspection reports and other functions. With easy operation and high detection efficiency, it can meet the needs of workpiece sample hardness control and conformity assessment of hardness testing. It is widely used in metal processing and manufacturing, various metal material’s failure analysis and other fields like colleges and research institutions. it is the professional precision testing equipment to improve the work efficiency, product qualification rate and save production costs.
Technical specifications | Technical Parameters |
Preliminary testing force | 98.07N,tolerance±2.0% |
Testing force | 588.4N,980.7N,1471N,tolerance±1.0% |
Measuring range | HRA:20-88,HRB:20-100,HRC:20-70,HRD:40-77, HRE:70-100,HRF:60-100,HRG:30-94,HRH:80-100, HRK:40-100,HRL:50-115,HRM:50-115,HRR:50-115 |
Testing force application Mode | Automatic operation (preliminary test force need manual operation) |
Indentor specification | Diamond cone Rockwell indenter, Φ1.5875mm steel ball indenter |
Display | High sensitivity touch screen |
Rockwell scale | HRA,HRB,HRC,HRD,HRE,HRF,HRG,HRH,HRK,HRL,HRM,HRP,HRR,HRS,HRV |
Conversion scale | HRA,HRB,HRC,HRD,HR15N,HR30N,HR45N,HR15T,HR30T,HR45T,HV,HBW,HK |
Duration time | 0~99s |
Indication error | 0.1HR |
Maximum height of specimen | 300mm |
Distance of indenter to outer wall | 165mm |
Power supply | AC220V/50Hz |
Dimension | 550*320*750mm |
Main unit weight | 100kg |
Indication error
Scale | Standard Hardness Range | Allowed Maximum Tolerance |
HRA | 20-75HRA | ±2HRA |
75-88HRA | ±1.5HRA | |
HRB | 20-45HRB | ±4HRB |
45-80HRB | ±3HRB | |
80-100HRB | ±2HRB | |
HRC | 20-70HRC | ±1.5HRC |
HRD | 40-70HRD | ±2HRD |
70-77HRD | ±1.5HRD | |
HRE | 70-90HRE | ±2.5HRE |
90-100HRE | ±2HRE | |
HRF | 60-90HRF | ±3HRF |
90-100HRF | ±2HRF | |
HRG | 30-50HRG | ±6HRG |
50-75HRG | ±4.5HRG | |
75-94HRG | ±3HRG | |
HRH | 80-100HRH | ±2HRH |
HRK | 40-60HRK | ±4HRK |
60-80HRK | ±3HRK | |
80-100HRK | ±2HRK | |
HRL | 100-120HRL | ±1.2HRL |
HRM | 85-110HRM | ±1.5HRM |
HRR | 114-125HRR | ±1.2HRR |
Features
Minimum specimen thickness table
Scale | Rockwell hardness value HR | Minimum thickness (mm) | Scale | Rockwell hardness value HR | Minimum thickness (mm) |
A | 70 | 0.7 | B | 80 | 1.0 |
80 | 0.5 | 90 | 0.8 | ||
90 | 0.4 | 100 | 0.7 | ||
B | 25 | 2.0 | C | 20 | 1.5 |
30 | 1.9 | 30 | 1.3 | ||
40 | 1.7 | 40 | 1.2 | ||
50 | 1.5 | 50 | 1.0 | ||
60 | 1.3 | 60 | 0.8 | ||
70 | 1.2 | 70 | 0.7 |
Different hardness test scales can be used to measure the material and hardness range of the sample materials.
Scale | Indenter type | preliminary testing force | Testing force (N) | Measuring range | Application |
A | Diamond cone | 98.07(N) | 588.4(N) | 20-88HRA | hard alloy, carbide, surface quenched steel, carburizing steel |
D | 980.7(N) | 40-77HRD | thin steel sheet, surface quenched steel | ||
C | 1471(N) | 20-70HRC | quenched steel, tempered steel, chilled cast iron | ||
F | Φ1.5875 1/16 inch steel ball | 588.4(N) | 60-100HRF | cast iron, aluminum, magnesium alloy, bearing alloy | |
B | 980.7(N) | 20-100HRB | mild steel, copper alloy, annealed steel | ||
G | 1471(N) | 30-94HRG | phosphorus iron, beryllium bronze, malleable cast iron | ||
H | Φ3.175 1/8inch steel ball | 588.4(N) | 80-100HRH | aluminum, zinc, lead etc. | |
E | 980.7(N) | 70-100HRE | bearing alloy, tin, hard plastics and other soft materials | ||
K | 1471(N) | 40-100HRK | |||
L | Φ6.35 1/4 inch steel ball | 588.4(N) | 50-115HRL | Hard plastic ,hard rubber, aluminum, tin, bronze, mild steel, synthetic resin, friction materials and etc. | |
M | 980.7(N) | 50-115HRL | |||
R | Φ12.7 1/2 inch steel ball | 588.4(N) | 50-115HRL |
Applications
Maintenance and Precautions
Mitech CO.,LTD.
Mitech CO.,LTD. located in Beijing, China and was founded in 2004 by a group of doctors and masters graduated from tsinghua or Peking University. It is a professional NDT testing manufacturer, we have our own R&D office for newest and highest technology.
Over ten years, Mitech has always adhered to the business philosophy,
"Technology innovation for development, high quality service as the forward boat", relying on the mastered technology and the tireless pursuit for science and technology, Mitech continuously blends in leading-edge technology to NDT instrument R&D and application, makes the product performance and technical indicators reaching to the international leading level.
From NDT portable instrument to large automatic detection system. Mitech owns intellectual property rights of core technology and it has already applied for invention patents and software copyrights and passed international certification such as EU CE certification and Russian GOST certification etc. Mitech products has been widely used in quality control and safety monitoring of aerospace, petrochemical pipeline, military industry, nuclear industry, ship, automobile, metallurgy, steel structure manufacture, boiler pressure vessel and so on, do the best working for safe operation of industrial production.
Mitech users have spread all over the world such as Japan, Korea, India, Germany, USA etc. By the best quality with competitive price, Mitech had gained a good reputation from global customers. As the professional NDT manufacturer, Mitech will insist our rule of serving for world NDT industry for best and quick development. We are looking for NDT agents from all over the world and welcome knowledgeable people to join us for development.
As professional NDT manufacturer, Mitech will supply you best quality products with competitive price. Professional business team can provide more promotion support according to local market together with our comprehensive experience to help you do professional needs analysis and market protection, launch new products continuously to create more opportunities for long cooperation. Meanwhile, we will support you strong after-sale service to solve more trouble. Any product quality problem within 3 months, we will replace a new one for free, all products with warranty up to two years and life-long maintenance. We will provide maintenance training and accessories with cost price. Mitech has sound market management system to help you manage market precisely and share customer information, establish and standardize market system for long-time win-win cooperation.
Mitech devotes to creating the value for world NDT industry as own duty, unswerving to provide perfect products to the market, providing customers with conscientious service, sincere management to create famous brand.
Mitech is willing to cooperate with world NDT colleagues and makes the efforts for more brilliant tomorrow, struggling for more secure NDT world.