{"id":415,"date":"2026-08-23T10:15:21","date_gmt":"2026-08-23T02:15:21","guid":{"rendered":"https:\/\/www.kolitai.com\/?p=415"},"modified":"2026-08-23T10:15:21","modified_gmt":"2026-08-23T02:15:21","slug":"kt-a34-paper-and-board-bending-stiffness-tester","status":"publish","type":"post","link":"https:\/\/www.kolitai.com\/?p=415","title":{"rendered":"KT\u2011A34 Paper and Board Bending Stiffness Tester"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Product Introduction<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The paperboard bending stiffness tester is a special instrument for determining the stiffness of paper and paperboard. It is especially suitable for measuring the stiffness of low\u2011basis\u2011weight paper and paperboard with thickness less than 1\u202fmm. It is used to measure the crease force (spring\u2011back force after 90\u00b0 bending) of various paperboards and paper boxes (such as cigarette boxes).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Technical Parameters<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Crease Force:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Precision: 0.1\u202fFS<\/li>\n\n\n\n<li>Accuracy: \u00b10.5%<\/li>\n\n\n\n<li>Crease stiffness bending angle: 90\u00b0<\/li>\n\n\n\n<li>Paperboard stiffness bending angle: 15\u00b0<\/li>\n\n\n\n<li>Test time: 15\u202fs<\/li>\n\n\n\n<li>Sample size: (36\u00d738)\u202fmm<\/li>\n\n\n\n<li>Load arm length: 10\u202fmm<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Paperboard Stiffness:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Resolution: 1\u202fmN<\/li>\n\n\n\n<li>Indication error: \u00b10.5\u202fmN for values below 50\u202fmN; \u00b11% for other values<\/li>\n\n\n\n<li>Indication variability: \u22641%<\/li>\n\n\n\n<li>Bending length: (50\u00b10.1)\u202fmm, (25\u00b10.1)\u202fmm, (10\u00b10.1)\u202fmm<\/li>\n\n\n\n<li>Bending test speed: (200\u00b110)\u202f\u00b0\/min; under 15\u00b0 bending condition, bending time shall be no less than 3\u202fs and no more than 20\u202fs<\/li>\n\n\n\n<li>Nominal bending length: 50\u202fmm<\/li>\n\n\n\n<li>Bending angle: (0~90)\u00b0 arbitrarily settable; commonly used (15\u00b10.3)\u00b0, (7.5\u00b10.3)\u00b0<\/li>\n\n\n\n<li>Clamp width: (38\u00b10.1)\u202fmm<\/li>\n\n\n\n<li>Sample size: (70\u00d738)\u202fmm<\/li>\n\n\n\n<li>Load arm length: 50\u202fmm<\/li>\n\n\n\n<li>Service life of Chinese\u2011English LCD control screen: approx. 50,000 hours<\/li>\n\n\n\n<li>Power supply: AC220V, 50Hz<\/li>\n\n\n\n<li>Overall dimension (L\u00d7W\u00d7H): (331\u00d7345\u00d7280)\u202fmm<\/li>\n\n\n\n<li>Net weight: 14\u202fkg<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Product Introduction The paperboard bending stiffness t [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":416,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-packaging-testing"],"_links":{"self":[{"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/posts\/415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=415"}],"version-history":[{"count":1,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/posts\/415\/revisions"}],"predecessor-version":[{"id":417,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/posts\/415\/revisions\/417"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=\/wp\/v2\/media\/416"}],"wp:attachment":[{"href":"https:\/\/www.kolitai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kolitai.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}