Robust, reliable, and automatic Rockwell hardness testing - immediate accuracy and a short cycle time

Duramin-150 – Entry-Level Rockwell Tester

  • Dedicated Rockwell tester
  • Load range: 3-150 kgf
  • Entry-level Rockwell tester
  • Robust load cell-based Rockwell tester
  • High efficiency
  • Fast and reliable results

Duramin-150 is an economic, entry-level Rockwell tester. It is load cell-based, easy to operate, and is designed to last, which makes it ideal for production environments.

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Durable design

Duramin-150 is made to meet the harsh challenges of the production environment, and employs a heavy frame and a robust display.

High efficiency and productivity

Duramin-150 is easy to use and does not require operator training, enabling accurate performance from the very start. A fast cycle time with an automatic start function ensures that the quality control is aligned with the production flow.

Quick and accurate

The load cell technology means that the test method can easily be selected without manually having to exchange loads. This minimizes potential operator errors and saves time.


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    Easy to use

    Robust display unit with touchscreen and simple user interface

    Easy to use
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    Robust and durable

    The machine frame is assembled from a cast frame, suitable for the toughest environments.

    Robust and durable
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    Automatic start after clamping

    Duramin-150 automatically starts after the sample is clamped against the nose cone, saving time when performing high volume testing.

    Automatic start after clamping
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    Fully automatic test cycle

    The entire test is fully automatic, including preloading, loading, unloading, and hardness evaluation.

    Fully automatic test cycle
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    Adaptable clamping

    Different types of samples can be handled, due to the wide selection of anvils and clamping devices that can be used with Duramin-150.

    Adaptable clamping
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    Built-in statistics function

    Basic statistics values are displayed on the main screen.

    Built-in statistics function
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    Dead weight-free

    Duramin-150 is based on load cell technology, which secures accurate and repeatable test loads. Load undershoot or overshoot is hereby eliminated.

    Dead weight-free


Model Types


Duramin 150 974x410 px
Load cell-based, Rockwell hardness tester with a with 6,5” touchscreen display suitable for all Rockwell methods. Test load range (main loads 3 – 150 kgf (29.4 – 1471 N) with a removable test anvil of Ø80 mm. The maximum sample height is 170 mm, with a throat depth of 170 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

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
Technical Data Sheet

Ensuring certainty with Struers tailored support services

To optimize your processes, enhance your quality control performance and ensure equipment availability, we offer a wide range of services, training and support.

From preventive maintenance to training and process analysis, our Service Plans, Service Packages and Single Services are delivered by experienced technical service engineers and application specialists – and can be tailored to match your needs.

Application specialists

The fast track to expert knowledge…

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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

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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.

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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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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
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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