{"id":190132,"date":"2026-10-12T12:00:00","date_gmt":"2026-10-12T12:00:00","guid":{"rendered":"https:\/\/m-technologijos.lt\/?post_type=products&#038;p=190132"},"modified":"2026-10-12T18:10:16","modified_gmt":"2026-10-12T15:10:16","slug":"cisam-ernst-nr3-d-benchtop-rockwell-hardness-tester","status":"publish","type":"products","link":"https:\/\/m-technologijos.lt\/en\/equipment\/hardness-testing\/benchtop-hardness-testers\/cisam-ernst-nr3-d-benchtop-rockwell-hardness-tester\/","title":{"rendered":"CISAM-Ernst NR3-D \u2013 benchtop Rockwell tester for laboratories and training"},"content":{"rendered":"<h2>Applications<\/h2>\n<p>For Rockwell hardness testing with standardised preload and main load on a wide range of materials \u2013 from hard metals to light alloys and plastics. Aimed at educational institutions and laboratories; the standard and superficial (Super Rockwell) versions are interchangeable on the same frame.<\/p>\n<h2>Key features<\/h2>\n<ul>\n<li>Interchangeable MOD DR and MOD DSR versions on the same frame<\/li>\n<li>Spring load system for harsh conditions (temperature, dust, humidity, vibration)<\/li>\n<li>Removable measuring head \u2013 faster maintenance and calibration<\/li>\n<li>Working area 3 \u00d7 3 mm, min. diameter 4 mm \u2013 suitable for small parts, balls, composites<\/li>\n<li>Digital readout display, RS232 output<\/li>\n<li>Positioned by the manufacturer as an economical solution<\/li>\n<\/ul>\n<h2>Models<\/h2>\n<table>\n<colgroup>\n<col style=\"width: 25%\" \/>\n<col style=\"width: 25%\" \/>\n<col style=\"width: 25%\" \/>\n<col style=\"width: 25%\" \/>\n<\/colgroup>\n<thead>\n<tr class=\"header\">\n<th>Model<\/th>\n<th>Methods \/ scales<\/th>\n<th>Load<\/th>\n<th>Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>NR3-D MOD DR<\/td>\n<td>Rockwell HRC, HRD, HRE, HRF, HRG, HRH, HRK; HB30<\/td>\n<td>60, 62.5, 100, 125, 150, 187.5 kgf (588\u20131839 N); preload 10 kgf (98.1 N)<\/td>\n<td>Manual load application<\/td>\n<\/tr>\n<tr class=\"even\">\n<td>NR3-D MOD DSR<\/td>\n<td>Super Rockwell HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X<\/td>\n<td>10, 15, 15.6, 30, 31.2, 45 kgf (98\u2013441 N); preload 3 kgf (29.4 N)<\/td>\n<td>Manual load application<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Technical data<\/h2>\n<ul>\n<li>Weight: 58 kg<\/li>\n<li>Working area: 3 mm \u00d7 3 mm; min. measurable diameter 4 mm<\/li>\n<li>Dwell time: set by the operator<\/li>\n<li>Output: RS 232<\/li>\n<\/ul>\n<h2>Standards<\/h2>\n<p>ASTM E 18; EN ISO 6506.<\/p>\n<h2>What we offer<\/h2>\n<ul>\n<li>Selection of the instrument and configuration for your task, together with the manufacturer<\/li>\n<li>Trial measurements of your samples in the manufacturer&#8217;s laboratory<\/li>\n<li>Training, calibration and service organised through the manufacturer<\/li>\n<\/ul>\n<p><a class=\"fl-button mt-cta\" href=\"\/en\/contacts\/\">Request a quote<\/a><\/p>\n<p class=\"mt-source\"><small>Technical data according to the manufacturer: <a href=\"https:\/\/cisam-ernst.com\/en\/products\/209-bench-hardness-tester-nr3d\" rel=\"nofollow noopener\" target=\"_blank\">cisam-ernst.com<\/a><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For Rockwell hardness testing with standardised preload and main load on a wide range of materials \u2013 from hard metals to light alloys and plastics.<\/p>\n","protected":false},"featured_media":90133,"template":"","meta":{"mt_image_url":"https:\/\/cisam-ernst.com\/media\/djcatalog2\/images\/item\/2\/bench-hardness-tester-nr3d_f.jpg","footnotes":""},"categories":[234],"class_list":["post-190132","products","type-products","status-publish","has-post-thumbnail","hentry","category-benchtop-hardness-testers"],"_links":{"self":[{"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/products\/190132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":3,"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/products\/190132\/revisions"}],"predecessor-version":[{"id":198588,"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/products\/190132\/revisions\/198588"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/media\/90133"}],"wp:attachment":[{"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/media?parent=190132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m-technologijos.lt\/en\/wp-json\/wp\/v2\/categories?post=190132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}