This entry-level range of microhardness testers primarily targets Vickers testing, but can also be used for Knoop and Brinell testing. The Duramin-4 testers are equipped with a combination of manual and automatic features to ensure easy operation. Duramin-4 is available in two load ranges; 10 gf – 2.0 kgf and 1.0 kgf – 62.5 kgf.
Advanced load cell technology ensures that the Duramin-4 conforms to all operating standards, while offering consistent repeatability throughout the entire load range.
The display unit combines a touchscreen with a simple user interface, designed to be easy to use, yet robust enough to withstand the toughest production environment. The hardness evaluation takes place manually via an eyepiece, where the measurement lines are simply positioned around the indent.
Duramin-4 is ideal for use as a dedicated Vickers single task tester, both in a laboratory (M1) or more production-focused (M2) environment.
Using micrometer spindles, the sample is positioned manually. Simply turning the two spindles ensures that the XY-stage and sample can be positioned precisely under the objective lens.
Sample height is adjusted manually by turning a hand wheel. This positions the XY-stage and sample at the ideal working height.
Indent evaluation is carried out via an eyepiece, and hardness value is displayed on the display unit.
The illumination system is based on LED technology to ensure constant illumination intensity throughout the lifetime of the LED. This eliminates variations in indent evaluation that can be associated with other illumination sources.
Duramin-4 is available with a six-position automatic turret that facilitates the exchange of up to five indenters and four objective lenses. This eliminates the tedious task of continuously exchanging indenters and objectives lenses, avoiding subsequent calibration and potential human errors.
Several holders and clamping devices are available, suitable for both mounted and unmounted samples.
Duramin-4 is available in a low load, low frame version, which is ideal for laboratory use, and in a high load, high frame version for use in a more production oriented or QC environment.
Both Duramin-4 models come with an eight-inch touchscreen, manual indent evaluation via an eye piece, manual Z-axis, manual XY-stage (size 90 x 90 mm, stroke 25 x 25 mm), including manual micrometers. Both are equipped with a motorized, six-position measurement turret.
| Variants | 10 gf – 2 kgf | 1.0 kgf – 62.5 kgf |
|---|---|---|
| Low frame | Duramin-4 M1 | |
| Tall frame | Duramin-4 M2 |
Struers’ equipment is in conformity with the provisions of the applicable international directives and their appurtenant standards. Struers’ products are subject to constant product development. Therefore, we reserve the right to introduce changes to our products without notice.
Struers Technical Data Sheets are designed to help you make the best choice of equipment for your particular purpose. You can find important information such as capacity and performance specifications, dimensions, weight, electrical data, noise levels, ambient conditions, and safety. In many cases you can also obtain an overview of accessories offering higher capacity and performance.
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"True structures require proper and correct applications. Different material properties require broad application knowledge. Struers application specialists are experts in optimizing preparation methods, because application knowledge is necessary to select the correct preparation solutions. Your material – our application solutions.”
Birgitte Nielsen
Application Specialist, Struers ApS
Don’t make do with what we say! Look for the truth in the experiences of the people who use our equipment and knowledge. We asked a few of our loyal customers to tell us what they think is most important about Struers.
With the Duramin-40, we can take before and after pictures easily, so we can see potential cracks before we start the tests – and analyze them more efficiently afterwards.MAN Energy Solutions Jesper Vejlø Carstensen Senior Research Engineer, M.Sc., Ph.D.
We are extremely satisfied with the highly skilled service delivered by Struers. They always meet our needs quickly and efficiently.BRP Powertrain GmbH & Co. KG (Austria) Herr Thomas Brunmair Supervisor Material Lab
Since adopting Struers equipment, we have made significant savings within our manufacturing process as a result of reduced manpower requirements and productivity improvements.Nissan Motor Manufacturing UK Ltd. John Smart Production Supervisor
