HMV-G Series

Micro Vickers Hardness Tester

Select the System to Suit the Situation


HMV-G31 Series
Standardized automatic length measurement function using a digital camera built into a novel G frame

G Frame 
The corner-less, elegant frame disperses the load uniformly for stability, and extends in the depth direction to expand the work space and improve operability. Additionally, because the central part of the frame is open, long narrow samples can now be measured as is.


Multi Turret (D Type) 
Two indenters and four lenses can be attached.

User-Designated Test Force Settings 
Using electromagnetic control, tests can be performed with a user-designated test force from 9.807 mN (HV0.001) to 19.61 N (HV2). (Minimum increment of 9.807 mN)

Test Conditions Assist Function 
This function can select the optimal lens from the anticipated hardness, or determine the optimal test force from the anticipated indentation depth and hardness.

Fracture Toughness Measurements 
The system can measure the crack length when the indenter makes an indentation, so the fracture toughness of brittle materials can be measured.

Measurement Mode Settings 
The user can select standard testing, in which the indentation is read after each test, or consecutive testing, in which the reading is taken after a number of test cycles.

Intelligent Software 
The software automatically sets the optimal indentation test force from the anticipated hardness and anticipated indentation depth. Further, the software automatically sets the optimal lens magnification from the anticipated hardness.

Automatic High Speed Readings 
One sample can be read in 0.3 seconds. (for monochrome cameras only)

Compact Design with a Built-in Digital Camera
The digital camera is built in, so the design is compact.

Automatic Lens Switching (T Type) 
After the automatic reading is taken, the lens is automatically switched to suit the size of the indentation.

Reading of Scored Surfaces 
The software can read not only samples with a mirror finish, but also samples scored by etching.

Routine Inspection Graphs 
The average hardness per lot is displayed in a graph, so the user can check changes in hardness.

Color Camera Model 
Models with color cameras are available.

USB Communication with a General Purpose PC 
Connect to a PC with just two USB cables. (Excluding the models with an electric stage)

Electric Micrometer (Optionally Available) 
After purchasing the HMV-G31/HMV-G21, if the electric micrometer option is subsequently added, the simplified electric XY stage function can be used.

■ The Following Situations Are Envisioned

Surface Processing and Etching Fields

  • There is a shortage of trained users, and the data varies significantly depending on the analyst.
  • There are scratches on the surfaces of lead frames and mechanical parts, so measuring indentation lengths is difficult.
  • Statistical controls should be implemented to evaluate quality stability, but there are not enough personnel.
  • The goal is to measure a range of samples, even those with unknown hardness levels.

Solar Cell Field

  • The goal is to evaluate the hardness of metal foils such as those used in solar cell wiring, but the foils cannot be measured because the test forces are too great.
  • The goal is to evaluate not only Micro Vickers hardness, but also Knoop hardness and other hardness types, but switching indenters is difficult.
  • The goal is to evaluate a variety of materials ranging in quality from hard to soft. However, this is difficult because test forces are inappropriate, and the lens magnification may not suit the indentation.




HMV-G31-FA Series
High Efficiency, Completely Automatic Measurements Using the Electric XYZ Stage and Special Software

Stage Viewer
Search the stage, and overlap the image data to create a total image. Also, the stage can be moved to the measurement position from the total image obtained.

Automatic Sample Shape Recognition
The system recognizes the shape of the sample, and sets the test position using this information.

General Purpose Test Pattern Settings
The coordinates of test positions are set using Excel data. As a result, programs can be created on a PC without installing special software. Angular adjustments to suit the sample orientation are made easily while observing the actual sample.

■ The Following Situations Are Envisioned

  Machine Industry Field

  • The goal is to evaluate the hardness distribution of parts with complicated shapes such as gears used in automobiles, aircraft, and hydraulic equipment, but determining measurement positions is difficult.
  • The goal is to measure the depth of hardening due to heat treatment, but measurement point positioning and calculations are difficult.
  • There are many test points, and measurement is difficult.




HMV-G30 Series
Turn it ON and Start Measuring Immediately. Active in Educational Fields.


Simple Test Mode
Simple test mode can be selected to start testing immediately just by setting the test force and the retention time.

LCD Data Graphs
The data are displayed in graphs, and it is easy to re-select or re-measure data.

LCD Touch Panel
The simple window conguration is easy to use. In addition to test condition settings, statistical graphs are displayed to summarize the results.

Direct USB Transfers
Just connect a USB flash drive to the instrument to automatically save data in CSV format.

Sleep Mode
Sleep mode starts up when the instrument is not in use, conserving power.

■ The Following Situations Are Envisioned

  Transport Equipment Field

  • The goal is to measure the hardness of camshafts and other long samples, but the tests cannot be performed because the instrument cannot accommodate the samples.
  • Users wish to avoid using PCs on-site.
  • Measuring samples for the first time is problematic because the degree of indentation force and magnification for measurement are unknown.

For Research Use Only. Not for use in diagnostic procedures.

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