The Duramin microhardness testers from Struers allow you to perform Vickers
and Knoop hardness tests reliably, reproducibly and accurately on metallic and
non-metallic materials. The automated test sequence means that testing can be
carried out efficiently, saving you valuable time.
The tester has a range of nine loads,
from 98.07 mN (10 g) to 19.61 N
(2 kg), which can be selected by the
unique patented load-interchange
mechanism. Loading and unloading
of the indenter with the chosen
weight occurs automatically with the
relevant information displayed on the
tester’s LCD touchpad.
The manually operated mechanical
stage is equipped with micrometer
screws for accurate positioning of the
sample.
Once the test point has been chosen,
pressing the START button automatically
moves the indenter into
position, lowers it onto the specimen
and then returns the lens to its original
position for analysis of the indent
(Duramin-2 only).
This high level of automation not only saves time, but also helps to avoid
operator errors. The size of the indent is measured using the incremental probe
after carefully positioning the two parallel filars. The maximum resolution
of 0.01 µm enables the indent size to be measured very accurately. The
measurement data is transferred to a microprocessor that calculates the hardness
value and displays the result.
Features of Duramin-1 and -2 Microhardness Testers
- Excellent reproducibility
- User-friendly design
- Patented automatic load-changing mechanism
- Automatic lens turret (Duramin-2)
- Simple menu-driven operation, values can be entered and displayed (in graphic
or text mode) via the LCD touch-display
- High resolution measurement probe. Minimum measurement unit 0.01 µm
- High precision mechanical stage with micrometer screw arrangement for exact
positioning in the x-y plane
- Standard and rapid testing modes
- Series and one-off measurements possible
- Conversion between hardness scales (HR, HB, MPa, etc.)
- Measurement statistics (max and min values, mean, standard deviation and
bar chart)
- RS 232C interface and printer port