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
Duramin-4 – Manual Micro and Micro/Macro Hardness Tester
- Methods: Vickers, Knoop and Brinell hardness testing
- Load ranges: 10 gf-2 kgf, 1-62.5 kgf
- Manual micro and micro/macro hardness tester
- Automatic six-position turret
- Manual XY-stage and Z-axis
- Manual indent evaluation via an eyepiece
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.
Accuracy and repeatability
Advanced load cell technology ensures that the Duramin-4 conforms to all operating standards, while offering consistent repeatability throughout the entire load range.
Easy operation
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.
Dedicated solution
Duramin-4 is ideal for use as a dedicated Vickers single task tester, both in a laboratory (M1) or more production-focused (M2) environment.
KEY FEATURES
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Manual XY-stage
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.
Manual XY-stage
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Manual Z-axis
Sample height is adjusted manually by turning a hand wheel. This positions the XY-stage and sample at the ideal working height.
Manual Z-axis
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Manual evaluation via an eyepiece
Indent evaluation is carried out via an eyepiece, and hardness value is displayed on the display unit.
Manual evaluation via an eyepiece
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LED illumination
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.
LED illumination
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Fast and easy exchange of test methods
Duramin-4 is available with a six-position automatic turret that facilitates the exchange of up to five indenters and five objective lenses. This eliminates the tedious task of continuously exchanging indenters and objectives lenses, avoiding subsequent calibration and potential human errors.
Fast and easy exchange of test methods
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Flexible clamping
Several holders and clamping devices are available, suitable for both mounted and unmounted samples.
Flexible clamping
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Available in two versions
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.
Available in two versions
Facts
Model Types
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.
Duramin-4 M1
Low load hardness tester based on load cell technology Ideal for the automatic testing of Vickers and Knoop Test height 0-200 mm
| Variants | 10 gf – 2 kgf | 1.0 kgf – 62.5 kgf |
|---|---|---|
| Low frame | Duramin-4 M1 | |
| Tall frame | Duramin-4 M2 |
Duramin-4 M2
Macrohardness tester based on load cell technology Ideal for the automatic testing of Vickers, Knoop, and Brinell With a test load range of 9.81 – 613.1 N (1.0 kgf – 62.5 kgf) Test height 0-400 mm
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.
Technical Data
Duramin 4 Technical Sheet
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.
Download Technical data sheet
Helle Michaelsen
Global Business Solution & Application Manager
Struers Aps.
Ballerup, Denmark
Struers Aps.
Ballerup, Denmark
Ólafur Ólafsson
PhD, Mechanical Engineer,
Application Specialist
Struers Aps.
Ballerup, Denmark
Application Specialist
Struers Aps.
Ballerup, Denmark
James Silvester
B.Eng. (Hons.) Materials Engineering, Sheffield, Hallam University,
Application Specialist
Struers Ltd.
Rotherham, UK
Application Specialist
Struers Ltd.
Rotherham, UK
Holger Schnarr
Doctorate Degree in Engineering and Degree of Engineering in Material Science,
Application Specialist
Struers GmbH
Willich, Germany
Application Specialist
Struers GmbH
Willich, Germany
Ulrich Setzer
Materials Engineer, Degree of Technical Assistant for Metallography and Material Science,
Application Specialist
Struers GmbH
Willich , Germany
Application Specialist
Struers GmbH
Willich , Germany
Roman Gerund
Degree of Technical Assistant for Metallography and Material Science,
Application Specialist
Struers GmbH
Willich, Germany
Application Specialist
Struers GmbH
Willich, Germany
Xiuping Jiang
Ph.D., M.Sc. in Material Science and Engineering,
Application and Laboratory Manager
Struers Ltd.
Shanghai, China
Application and Laboratory Manager
Struers Ltd.
Shanghai, China
Zhe Chen
Master's Degree in Materials Science and Engineering,
Application Specialist
Struers Ltd.
Shanghai, China
Application Specialist
Struers Ltd.
Shanghai, China
Kinichi Ishikawa
Ms.C. in Industrial Science,
Application Specialist
Marumoto Struers K.K
Tokyo, Japan
Application Specialist
Marumoto Struers K.K
Tokyo, Japan
Yuya Hayakawa
M.Sc. in Material Science and Engineering,
Application Specialist
Marumoto Struers K.K
Tokyo, Japan
Application Specialist
Marumoto Struers K.K
Tokyo, Japan
Correct preparation solutions
"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
MEET SOME OF OUR CUSTOMERS
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.
We have been using Struers equipment and consumables for almost 30 years and have benefitted enormously from their unparalleled service and applications support.John Crane UK Ltd. UK Bill Taylor Materials & Forensics Engineer
My relationship with Struers dates back over many years. The reason is their expert advice, good service, and their use of our application laboratory in the case of difficult questions that are best resolved on-site.WWU Münster, Institut für Planetologie Ursula Heitmann Mineral Specimen Preparer
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