{
  "title": "Duramin-650 universal hardness tester",
  "kind": "product",
  "company": "Struers",
  "category": "Metrology & quality control",
  "parameters": {
    "Language": "English"
  },
  "language": "en",
  "source_url": "https://www.struers.com/en/products/hardness-testing/hardness-testing-equipment/duramin-650",
  "content_html": "<h2>Duramin-650 universal hardness tester | Struers.com</h2><p>A versatile Vickers, Knoop, Brinell and Rockwell semi- and fully-automatic hardness testing machine, the Duramin-650 is ideal for high-volume testing of large samples in the laboratory.</p><h2>Duramin-650</h2><h2>Versatile universal hardness testing that ensures repeatability over a wide load range</h2><img src=\"/files/struers-file-07e36d4f4b24e9fa85fc6556/duramin-650-1024x665px.jpg\" alt=\"\" loading=\"lazy\"><img src=\"/files/struers-file-83c851ca67d641ac49f138ae/duramin-650-lab-1024x665px.jpg\" alt=\"\" loading=\"lazy\"><img src=\"/files/struers-file-8c268e36c5c24812f54d59b2/duramin-650-motorised-test-head-1024x665px.jpg\" alt=\"\" loading=\"lazy\"><img src=\"/files/struers-file-c1274e783a62c41cd2f812dd/duramin-650-lab-model-placing-sample-1024x665px.jpg\" alt=\"\" loading=\"lazy\"><h2>Duramin-650 – Semi-Automatic and Fully Automatic Universal Tester</h2><p>Methods: Vickers, Knoop, Brinell and Rockwell hardness testing</p><p>Load ranges: 1-250 kgf, 3-750 kgf, 5-3000 kgf</p><p>Motorized test head</p><p>Motorized XY-stage</p><p>Automatic illumination</p><p>Anti-collision system</p><p>Overview camera</p><p>Laser positioning system</p><p>Embedded PC, operated by mouse or touchscreen</p><p>Duramin-650 is the universal tester suited for laboratory use. Each model in the range has a motorized test head and turret, and is available either with a fixed anvil or with a motorized XY-stage and overview camera, primarily suitable for high volume testing. Duramin-650 is available in three load ranges.</p><h2>How does Duramin 650 support your Hardness Testing</h2><h3>Flexible testing</h3>\nDue to the wide test load ranges possible, the Duramin-650 is suitable for many different applications that previously needed several individual macro indentation hardness testers.\n<h3>Reliable precision</h3>\nBased on load cell technology, the Duramin-650 conforms to all standards while offering excellent accuracy and repeatability throughout the entire load range.\n<h3>High capacity</h3>\nDuramin-650 is optionally available with a motorized XY-stage for fully automatic testing of test series.<img src=\"/files/struers-file-cf294a4e89c31076dd207b03/duramin-650-flexible-testing-974x1400px.jpg\" alt=\"\" loading=\"lazy\"><p>Flexible testing</p><img src=\"/files/struers-file-de3a562c4dcfab54e88e87f8/duramin-650-reliable-precision-974x1400px.jpg\" alt=\"\" loading=\"lazy\"><p>Reliable precision</p><img src=\"/files/struers-file-2cd363c12ca85779906f537d/duramin650-high-capacity-974x1400px.jpg\" alt=\"\" loading=\"lazy\"><p>High capacity</p><img src=\"/files/struers-file-60d8cdb6ffafb8041da7e9ca/duramin-650-stable-testing-conditions-1024x759px.jpg\" alt=\"\" loading=\"lazy\"><p>The motorized test head, or V-concept, ensures rigid testing conditions without compromising on the testing height capacity. The sample remains at the same height to secure accurate and reproducible results, regardless of the sample size and weight.</p><h2>Stable testing conditions</h2><img src=\"/files/struers-file-b74807792f0c5509642c9bb7/duramin-650-perfect-working-height-1024x759px.jpg\" alt=\"\" loading=\"lazy\"><p>The Duramin-650 automatically adjusts to the correct working height by moving the measurement turret down until it touches the sample&#x27;s surface.</p><h2>Perfect working height</h2><img src=\"/files/struers-file-19626e6969c3f3de8f033a86/duramin-650-automatic-protection-1024x759-px.jpg\" alt=\"\" loading=\"lazy\"><p>The machine automatically stops during a collision or any unexpected vibration or movements. This protects the indenters and lenses from being damaged and also provides optimal operator safety.</p><h2>Automatic protection</h2><img src=\"/files/struers-file-e18ae389de5b7a4557a87dd2/duramin-650-automatic-exchange-of-indenter-and-lens-1024x759px.jpg\" alt=\"\" loading=\"lazy\"><p>Duramin-650 is available with a six-position automatic turret that facilitates the exchange of up to three indenters and three objective lenses. The exchange of indenter and lens runs fully automatically, hereby avoiding misalignment and operator errors.</p><h2>Automatic exchange of indenter and lens</h2><img src=\"/files/struers-file-29fd876f626ce1e89e546b26/duramin-650-simple-test-execution-1024x759-px.jpg\" alt=\"\" loading=\"lazy\"><p>The optional overview camera makes it easy to position the test point series across the sample and execute the test series with a few mouse clicks.</p><img src=\"/files/struers-file-d862b42348ae5e96dff2303d/duramin-650-test-point-editor-1024x759-px.jpg\" alt=\"\" loading=\"lazy\"><p>Duramin-650 is also available with a built-in test point editor to define and set up measurement lines for fully automatic testing.</p><h2>Optional test point editor</h2><img src=\"/files/struers-file-9b71c8880bba53838857b2b9/duramin-650-relevant-software-1024x759-px.jpg\" alt=\"\" loading=\"lazy\"><p>Application specific software modules are available for a variety of needs: a weld measurement module, surface mapping, edge detection, and a Kc fracture toughness calculator.</p><h2>Software modules for specific needs</h2><img src=\"/files/struers-file-a0ecdee1f3bdc1035a3c013b/duramin-650-load-cell-based-en-1024x759-px.jpg\" alt=\"\" loading=\"lazy\"><p>Through eliminating the common overshoot and undershoot from dead weight systems, load cell technology ensures the highest degree of accuracy and repeatability during load application. The absence of mechanical weights not only eliminates friction problems but also makes the equipment less sensitive to misalignment caused by vibrations. Combined with a motorized turret, the entire measurement cycle of loading, indenting, unloading, focusing, and evaluating is carried out extremely quickly.</p><h2>Accuracy during load application</h2><h2>Facts</h2><h2>Model Types</h2><h2>All Duramin-650 models come with a motorised test head, automatic illumination adjustment, auto focus and automatic image evaluation. The maximum sample height is 300 mm, with a throat depth of 220 mm. Duramin-650 is operated via a 15” colour LCD touch screen control. Duramin-650 M range come with a fixed test anvil (Ø80 mm dia.) and a motorised 6-position turret.The Duramin-650 AC range come with a test point editor, motorised XY-stage (size 390 x 262 mm, stroke 250 x 160 mm) and a motorised 8-position</h2><img src=\"/files/struers-file-6264f8e0febe76ec301da5e7/duramin-650-m-974x410px.jpg\" alt=\"\" loading=\"lazy\"><h2>Duramin-650 M1</h2><p>Universal hardness tester with load-cell technology for the automatic hardness testing of Brinell, Vickers, Rockwell and Knoop. With an extended load range of 9.8 N to 2450 N (1-250 kgf).</p><h2>Duramin-650 M2</h2><p>Universal hardness tester with load-cell technology for the automatic hardness testing of Brinell, Vickers, Rockwell and Knoop. With an extended load range of 29.4 N to 7360 N (3-750 kgf).</p><h2>Duramin-650 M3</h2><p>Universal hardness tester with load-cell technology for the automatic hardness testing of Brinell, Vickers, Rockwell and Knoop. With an extended load range of 49.1 N to 29430 N (5-3000 kgf).<br><br><strong>Duramin-650 AC2<br></strong>Universal hardness tester with load-cell technology for the automatic hardness testing of Brinell, Vickers, Rockwell and Knoop. With an extended load range of 29.4 N to 7360 N (3-750 kgf).</p>\n<table>\n<thead>\n<tr>\n<th>Variants</th>\n<th>1 kgf – 250 kgf</th>\n<th>3 kgf – 750 kgf</th>\n<th>5 kgf – 3000 kgf</th>\n</tr>\n</thead>\n<tbody>\n<tr>\n<td>Fixed test anvil</td>\n<td>Duramin-650 M1</td>\n<td>Duramin-650 M2</td>\n<td>Duramin-650 M3</td>\n</tr>\n<tr>\n<td>Automatic XY-stage + overview camera</td>\n<td>Duramin-650 AC1</td>\n<td>Duramin-650 AC2</td>\n<td>Duramin-650 AC3</td>\n</tr>\n</tbody>\n</table>\n<p> </p><img src=\"/files/struers-file-aec74b6b5cbcca9c23b664b9/duramin-650-ac-974x410px.jpg\" alt=\"\" loading=\"lazy\"><h2>Duramin-650 AC1</h2><p>Universal hardness tester with load-cell technology for the automatic hardness testing of Brinell, Vickers, Rockwell and Knoop. With an extended load range of 9.8 N to 2450 N (1-250 kgf).<br><br><strong>Duramin-650 AC3</strong><br>Universal hardness tester with load-cell technology for the automatic hardness testing of Brinell, Vickers, Rockwell and Knoop. With an extended load range of 49.1 N to 29430 N (5-3000 kgf).</p><h2>Technical Data</h2><h2>Technical Data</h2><p>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.</p><img src=\"/files/struers-file-b96d30fa7ea0453989feac5c/new-tech-sheets-icon.jpg\" alt=\"\" loading=\"lazy\"><p><a href=\"/records/struers-library-sds-struers-com-66278\">Library</a></p><h2>Get your brochure for Duramin-650</h2><h2>Get your brochure for Duramin-650</h2><p>Get the full introduction, descriptive visuals, and key feature descriptions to help you qualify your choice of equipment.\n\n•\tExplanatory fotos\n•\tKey feature descriptions\n•\tTechnical Data Sheet</p><img src=\"/files/struers-file-a22858a294a68fe349d82ef9/new-brochures-icon.jpg\" alt=\"\" loading=\"lazy\"><p><a href=\"/files/struers-file-c9518b32c9eb32b2e94b7e99/duramin-product-overview.pdf\">Related resource</a></p><p>Duramin-650 is the universal tester suited for laboratory use. Each model in the range has a motorized test head and turret, and is available either with a fixed anvil or with a motorized XY-stage and overview camera, primarily suitable for high volume testing. Duramin-650 is available in three load ranges.</p><p>Read more</p><p>Read more</p>",
  "summary": "A versatile Vickers, Knoop, Brinell and Rockwell semi- and fully-automatic hardness testing machine, the Duramin-650 is ideal for high-volume testing of large samples in the laboratory.",
  "sections": [],
  "updated_at": "2026-10-17"
}