{"id":9611,"date":"2025-09-09T15:16:52","date_gmt":"2025-09-09T13:16:52","guid":{"rendered":"https:\/\/hoenle.cn\/?page_id=9611"},"modified":"2026-01-27T14:12:14","modified_gmt":"2026-01-27T13:12:14","slug":"case-study-needle-bonding","status":"publish","type":"page","link":"https:\/\/hoenle.cn\/en\/products-solutions\/case-studies\/case-study-needle-bonding\/","title":{"rendered":"CASE STUDY: Needle Bonding"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_section][vc_row][vc_column width=&#8221;1\/2&#8243;]\n<h1 class=\"akt-heading akt-heading--inline akt-heading--h1 akt-heading--align-left\">\n            <span class=\"akt-heading__part akt-heading__part--light\">Case Study<\/span>\n                <span class=\"akt-heading__part akt-heading__part--bold\">How to Bond Needles<\/span>\n    <\/h1>[\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;]A main field of application for adhesives in medical systems is needle bonding and syringe assembly \u2013 the bonding of stainless steel needles or cannulas into glass or plastic syringes. These needles are produced in large quantities which requires rapid and reliable bonding in high volume production. In addition to their mechanical bond strength, the adhesives used must allow high-precision production and permanent joining and must withstand various sterilization methods.[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section css=&#8221;.vc_custom_1756467838007{background-color: #FFFFFF !important;}&#8221;][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;]Hoenle\u2019s uv curable Vitralit\u00ae adhesives exactly meet these requirements. Vitralit\u00ae adhesives are available in various viscosity ranges to perfectly fit the design of the needle hub and fill the gap between the hub and the needle. The material of the hub and needle also affects the choice of the adhesive: Many adhesives are UV-curing, which requires the use of transparent and UV-permeable materials. For materials that block UV light, such as polycarbonates, long-wave LED curable adhesives are recommended. All Vitralit\u00ae adhesives recommended for needle bonding are solvent-free and certified USP Class VI and\/or ISO 10993 for use in medical equipment. In addition, high needle extraction forces were measured with all needle bonding adhesives even after several sterilization cycles. For visual quality inspection, fluorescent versions of our medical grade adhesives are also available.<\/p>\n<p>The choice of the adhesives requires a matching dispensing system for reliable and precise dispensing in a rapid production environment. The high quality demands required for medical devices, as this needle bonding application, confirms the choice for bdtronic\u2019s volumetric dispensing equipment.<\/p>\n<p>With the mini-dis solution provided by bdtronic, dispensing in microliter range is made easy, regardless of the adhesive viscosity. Thanks to the continuous volumetric dispensing, the dispensing is pulsation free ensuring optimal process speed, repeatability and accuracy.<\/p>\n<p>Finally, the choice of the UV curing equipment depends on the adhesive and the wavelength which triggers polymerization. For needle bonding with Vitralit\u00ae products you can use either UV-A or visible LED light. Due to a special LED assembly and an own optimized electric power supply, Hoenle LED Powerline LC guarantees a high-intensive irradiation for fastest curing and shortest cycle times. In addition, the irradiation time can be selected in a range of 0.01 \u2013 99.99 sec and thus precisely adapted to the process requirements.<\/p>\n<p>Hoenle LED Powerline heads have a compact design for an easy integration into any production line. The high-intensive, water-cooled LED-UV is suitable for clean room operation.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;]\n<div id=\"akt-video-player-69dbade05a9e3\" class=\"akt-video-player akt-video-player--width-full akt-video-player--align-center akt-video-player--aspect-16-9\">\n    \n    \n    <div class=\"akt-video-player__container\">\n                    <video class=\"akt-video-player__video\" \n                   controls loop muted poster=\"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-Hoenle-LEDs.jpg\"                   preload=\"metadata\"\n                   playsinline\n                   data-element-id=\"akt-video-player-69dbade05a9e3\">\n                \n                <!-- Primary video source -->\n                <source src=\"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-bdtronic-and-Hoenle.mp4\" \n                        type=\"video\/mp4\">\n                \n                <!-- Fallback message for unsupported browsers -->\n                <div class=\"akt-video-player__fallback\">\n                    <p>Your browser does not support the video tag. Please \n                       <a href=\"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-bdtronic-and-Hoenle.mp4\" \n                          target=\"_blank\" \n                          rel=\"noopener noreferrer\">\n                          download the video file                       <\/a> to watch it.                    <\/p>\n                    \n                                            <img decoding=\"async\" src=\"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-Hoenle-LEDs.jpg\" \n                             alt=\"Video preview\" \n                             class=\"akt-video-player__fallback-image\" \/>\n                                    <\/div>\n            <\/video>\n\n            <!-- Custom Play Button Overlay (optional, controlled by CSS\/JS) -->\n            <div class=\"akt-video-player__play-overlay\" \n                 data-video-target=\"akt-video-player-69dbade05a9e3\" \n                 role=\"button\" \n                 tabindex=\"0\"\n                 aria-label=\"Play video\"\n                 style=\"display: none;\">\n                <span class=\"akt-video-player__play-icon\" aria-hidden=\"true\">\n                    <svg width=\"64\" height=\"64\" viewBox=\"0 0 24 24\" fill=\"currentColor\">\n                        <path d=\"M8 5v14l11-7z\"\/>\n                    <\/svg>\n                <\/span>\n            <\/div>\n\n            <!-- Loading Indicator -->\n            <div class=\"akt-video-player__loading\" style=\"display: none;\">\n                <span class=\"akt-video-player__loading-spinner\" aria-hidden=\"true\"><\/span>\n                <span class=\"akt-video-player__loading-text\">\n                    Loading video...                <\/span>\n            <\/div>\n\n            <\/div>\n\n    \n    <!-- Video Metadata (hidden, for accessibility and SEO) -->\n            <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"https:\/\/schema.org\",\n            \"@type\": \"VideoObject\",\n            \"name\": \"CASE STUDY: Needle Bonding\",\n            \"contentUrl\": \"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-bdtronic-and-Hoenle.mp4\",\n                                    \"thumbnailUrl\": \"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-Hoenle-LEDs.jpg\",\n                        \"uploadDate\": \"2025-09-09T15:16:52+02:00\",\n            \"embedUrl\": \"https:\/\/hoenle.cn\/wp-content\/uploads\/Needle-Bonding-with-bdtronic-and-Hoenle.mp4\"\n        }\n        <\/script>\n    \n<\/div>[vc_column_text css=&#8221;&#8221;]<b>Watch our video<\/b>[\/vc_column_text][vc_empty_space][vc_column_text css=&#8221;&#8221;]<strong>Downloads<\/strong><\/p>\n<p><a href=\"https:\/\/hoenle.cn\/wp-content\/uploads\/Hoenle-Brochure-Medical-Grade-Adhesives-1.pdf\">Medical Grade Adhesives (pdf)<\/a><\/p>\n<p><a href=\"https:\/\/hoenle.cn\/wp-content\/uploads\/LED-Powerline-ACIC_e.pdf\">LED Powerline AC\/IC (pdf)<\/a>[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section css=&#8221;.vc_custom_1756467927831{background-color: #F2F4F6 !important;}&#8221;][vc_row][vc_column]\n<h2 class=\"akt-heading akt-heading--inline akt-heading--h2 akt-heading--align-left\">\n            <span class=\"akt-heading__part akt-heading__part--light\">Read more about our<\/span>\n                <span class=\"akt-heading__part akt-heading__part--bold\">Needle Bonding Solutions<\/span>\n    <\/h2>[vc_empty_space height=&#8221;15px&#8221;]\n<div class=\"akt-grid akt-grid--columns-3 akt-grid--align-center akt-grid--aspect-16_9 akt-grid--hover akt-grid--fit-cover akt-grid--animation-fade_in\" \n     id=\"akt-grid-69dbade05ad96\"\n     data-columns=\"3\"\n     data-animation=\"fade-in\">\n\n            <style>@media (max-width: 768px) { #akt-grid-69dbade05ad96 .akt-grid__content { background-color: #ffffff; } }<\/style>\n         \n    \n            <div class=\"akt-grid__container\">\n                                            \n                <div class=\"akt-grid__item\" \n                     data-index=\"0\"\n                     style=\"--animation-delay: 0s\">\n                    \n                                            <a href=\"\/products-solutions\/applications\/bonding-potting\/medical-grade-adhesive\/\"\n                                                                                     title=\"Medical Grade Adhesive\"\n                                                      class=\"akt-grid__item-link\">\n                                        \n                                            <div class=\"akt-grid__image akt-grid__image--16_9\">\n                            <img decoding=\"async\" src=\"https:\/\/hoenle.cn\/wp-content\/uploads\/Medical-Grade-Adhesives-Overview-400.jpg\" \n                                 alt=\"Our medical grade adhesives\" \n                                 class=\"akt-grid__image-element\"\n                                 loading=\"lazy\"\n                                 width=\"400\"\n                                 height=\"307\">\n                        <\/div>\n                                        \n                                            <div class=\"akt-grid__content\">\n                                                            <h3 class=\"akt-grid__title\">Our medical grade adhesives<\/h3>\n                                                        \n                                                            <p class=\"akt-grid__description\">Our medical grade adhesives are certified according to USP VI and\/or ISO 10993 standards. They can be used for a wide variety of applications, such as needle bonding, bonding of endoscopes and medical devices, wearable devices, or tube sets and connectors.<\/p>\n                                                    <\/div>\n                                        \n                                            <\/a>\n                                    <\/div>\n                \n                                            \n                <div class=\"akt-grid__item\" \n                     data-index=\"1\"\n                     style=\"--animation-delay: 0s\">\n                    \n                                            <a href=\"\/products-solutions\/applications\/bonding-potting\/medical-grade-adhesive\/needle-bonding\/\"\n                                                                                     title=\"Needle Bonding\"\n                                                      class=\"akt-grid__item-link\">\n                                        \n                                        \n                                            <div class=\"akt-grid__content\">\n                                                            <h3 class=\"akt-grid__title\">Needle Bonding<\/h3>\n                                                        \n                                                            <p class=\"akt-grid__description\">A main field of application for adhesives in medical systems is needle bonding and syringe assembly - the bonding of stainless steel needles or cannulas into glass or plastic syringes.<\/p>\n                                                    <\/div>\n                                        \n                                            <\/a>\n                                    <\/div>\n                \n                                            \n                <div class=\"akt-grid__item\" \n                     data-index=\"2\"\n                     style=\"--animation-delay: 0s\">\n                    \n                                            <a href=\"\/products-solutions\/product-categories\/led-uv-equipment\/hoenle-led-powerline-ac-ic-hp\/\"\n                                                                                     title=\"Coating \/ Finishing\"\n                                                      class=\"akt-grid__item-link\">\n                                        \n                                        \n                                            <div class=\"akt-grid__content\">\n                                                            <h3 class=\"akt-grid__title\">LED Powerline AC\/IC curing system<\/h3>\n                                                        \n                                                            <p class=\"akt-grid__description\">The Hoenle Powerline AC\/IC HP with LED Powerdrive IC is a high intensity, air cooled LED curing system that is ideal for hardening UV and visible light curable adhesives and coatings. Producing intensity up to 16,000 mW\/cm\u00b2, the AC\/IC HP contributes to very fast curing cycles.<\/p>\n                                                    <\/div>\n                                        \n                                            <\/a>\n                                    <\/div>\n                \n                    <\/div>\n        \n<\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section css=&#8221;.vc_custom_1757429652602{background-color: #FFFFFF !important;}&#8221;][vc_row][vc_column width=&#8221;1\/3&#8243;]\n<h2 class=\"akt-heading akt-heading--block akt-heading--h2 akt-heading--align-left\">\n            <span class=\"akt-heading__part akt-heading__part--light\">Contact<\/span>\n                <span class=\"akt-heading__part akt-heading__part--bold\">And Support<\/span>\n    <\/h2>[vc_empty_space height=&#8221;15px&#8221;][\/vc_column][vc_column width=&#8221;2\/3&#8243;][vc_column_text css=&#8221;&#8221;]Do you have any questions or need support for our bonding solutions? We are happy to help you.[\/vc_column_text][vc_empty_space height=&#8221;15px&#8221;]\n<div class=\"akt-button-wrapper akt-button-wrapper--align-left\">\n            <a href=\"\/contact\" \n           class=\"akt-button akt-button--medium akt-button--primary\" aria-label=\"Request consultation\"                      >\n            <span class=\"akt-button__text\">Request consultation<\/span>\n        <\/a>\n    <\/div>[\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_section][vc_row][vc_column width=&#8221;1\/2&#8243;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text css=&#8221;&#8221;]A main field of application for adhesives in medical systems is needle bonding and syringe assembly \u2013 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":14308,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"plain-container","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-9611","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/pages\/9611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/comments?post=9611"}],"version-history":[{"count":27,"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/pages\/9611\/revisions"}],"predecessor-version":[{"id":23104,"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/pages\/9611\/revisions\/23104"}],"up":[{"embeddable":true,"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/pages\/14308"}],"wp:attachment":[{"href":"https:\/\/hoenle.cn\/en\/wp-json\/wp\/v2\/media?parent=9611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}