{"id":1113,"date":"2026-03-06T05:54:30","date_gmt":"2026-03-06T05:54:30","guid":{"rendered":"https:\/\/xflsrmolding.com\/?p=1113"},"modified":"2026-03-06T05:59:30","modified_gmt":"2026-03-06T05:59:30","slug":"lsr-molding-cold-runner-vs-hot-runner-systems","status":"publish","type":"post","link":"https:\/\/xflsrmolding.com\/ja\/lsr-molding-cold-runner-vs-hot-runner-systems\/","title":{"rendered":"LSR\u6210\u5f62\uff1a\u30b3\u30fc\u30eb\u30c9\u30e9\u30f3\u30ca\u30fc\u3068\u30db\u30c3\u30c8\u30e9\u30f3\u30ca\u30fc\u30b7\u30b9\u30c6\u30e0"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1113\" class=\"elementor elementor-1113\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-68fa19ff e-flex e-con-boxed e-con e-parent\" data-id=\"68fa19ff\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div 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href=\"https:\/\/xflsrmolding.com\/ja\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">\u30db\u30fc\u30e0<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-right\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">\u30d6\u30ed\u30b0<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-right\" viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">\u6db2\u72b6\u30b7\u30ea\u30b3\u30fc\u30f3\u5c04\u51fa\u6210\u5f62\u30ac\u30a4\u30c9<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ae2c9b3 e-flex e-con-boxed e-con e-parent\" data-id=\"ae2c9b3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6f5a9b7 elementor-widget elementor-widget-heading\" data-id=\"6f5a9b7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Liquid Silicone Injection Molding: Cold Runner vs Hot Runner Systems<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-190ddd52 e-flex e-con-boxed e-con e-parent\" data-id=\"190ddd52\" data-element_type=\"container\">\n\t\t\t\t\t<div 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49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_linkedin\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Share on 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\/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-59527384 e-flex e-con-boxed e-con e-parent\" data-id=\"59527384\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7d6871dc elementor-widget elementor-widget-text-editor\" data-id=\"7d6871dc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"319\" data-end=\"576\"><a href=\"https:\/\/xflsrmolding.com\/ja\/%e3%83%86%e3%82%af%e3%83%8e%e3%83%ad%e3%82%b8%e3%83%bc\/\"><strong data-start=\"319\" data-end=\"356\">Liquid Silicone Injection Molding<\/strong><\/a> has become one of the most advanced methods for producing precision silicone components. Many industries rely on this process for parts requiring flexibility, durability, and stable performance under extreme conditions.<\/p><p data-start=\"578\" data-end=\"842\">Compared with traditional molding technologies, liquid silicone molding offers faster production cycles and better dimensional control. Because of these advantages, manufacturers widely use it in medical devices, baby products, electronics, and sealing components.<\/p><p data-start=\"844\" data-end=\"977\">Understanding different runner systems and production methods helps engineers choose the right molding solution for each application.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-59a0fd0b e-flex e-con-boxed e-con e-parent\" data-id=\"59a0fd0b\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c6c54ca elementor-widget elementor-widget-text-editor\" data-id=\"2c6c54ca\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"9zzwg\" data-start=\"984\" data-end=\"1028\"><strong>What Is Liquid Silicone Injection Molding?<\/strong><\/h2><p data-start=\"1030\" data-end=\"1247\"><a href=\"https:\/\/xflsrmolding.com\/ja\/%e3%83%86%e3%82%af%e3%83%8e%e3%83%ad%e3%82%b8%e3%83%bc\/\">Liquid Silicone Injection Molding<\/a> refers to a manufacturing process where liquid silicone rubber (LSR) materials are injected into heated molds. Once inside mold cavities, silicone begins curing through vulcanization.<\/p><p data-start=\"1249\" data-end=\"1348\">This process allows manufacturers to produce high-precision silicone parts with consistent quality.<\/p><p data-start=\"1350\" data-end=\"1392\">Two main runner systems are commonly used:<\/p><ul data-start=\"1394\" data-end=\"1438\"><li data-section-id=\"c9o4ft\" data-start=\"1394\" data-end=\"1416\"><p data-start=\"1396\" data-end=\"1416\">Cold runner system<\/p><\/li><li data-section-id=\"2rqeha\" data-start=\"1417\" data-end=\"1438\"><p data-start=\"1419\" data-end=\"1438\">Hot runner system<\/p><\/li><\/ul><p data-start=\"1440\" data-end=\"1518\">Each design affects material efficiency, tooling cost, and production control.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c14b49a e-flex e-con-boxed e-con e-parent\" data-id=\"7c14b49a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc68211 elementor-widget elementor-widget-text-editor\" data-id=\"dc68211\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"8ej9hm\" data-start=\"1525\" data-end=\"1583\"><strong>Cold Runner Systems in Liquid Silicone Injection Molding<\/strong><\/h2><p data-start=\"1585\" data-end=\"1656\">Cold runner molds are widely used for precision silicone manufacturing.<\/p><p data-start=\"1658\" data-end=\"1849\">In this design, liquid silicone rubber remains at low temperature inside runner channels before entering heated cavities. Specialized valves help control material flow and injection accuracy.<\/p><h3 data-section-id=\"1ls358m\" data-start=\"1851\" data-end=\"1892\">Key Components of Cold Runner Systems<\/h3><p data-start=\"1894\" data-end=\"1932\">Cold runner systems typically include:<\/p><ul data-start=\"1934\" data-end=\"2001\"><li data-section-id=\"1jfog6j\" data-start=\"1934\" data-end=\"1953\"><p data-start=\"1936\" data-end=\"1953\">Shut-off valves<\/p><\/li><li data-section-id=\"nmmdqo\" data-start=\"1954\" data-end=\"1971\"><p data-start=\"1956\" data-end=\"1971\">Needle valves<\/p><\/li><li data-section-id=\"1x0pwyx\" data-start=\"1972\" data-end=\"2001\"><p data-start=\"1974\" data-end=\"2001\">Distributive mixing units<\/p><\/li><\/ul><p data-start=\"2003\" data-end=\"2081\">These components maintain silicone material stability before injection begins.<\/p><p data-start=\"2083\" data-end=\"2154\">Once material enters heated cavities, vulcanization starts immediately.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-51bd351 e-grid e-con-boxed e-con e-parent\" data-id=\"51bd351\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-615f53ce elementor-widget elementor-widget-image\" data-id=\"615f53ce\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/ja\/markets\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1080\" height=\"780\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-01.jpg\" class=\"attachment-full size-full wp-image-903\" alt=\"\u6db2\u72b6\u30b7\u30ea\u30b3\u30fc\u30f3\u91d1\u578b\u8a2d\u8a08\u306e\u5229\u70b9\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-01.jpg 1080w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-01-300x217.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-01-1024x740.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-01-768x555.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14c50d6b elementor-widget elementor-widget-image\" data-id=\"14c50d6b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/ja\/markets\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1080\" height=\"780\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-02.jpg\" class=\"attachment-full size-full wp-image-904\" alt=\"\u6db2\u72b6\u30b7\u30ea\u30b3\u30fc\u30f3\u91d1\u578b\u8a2d\u8a08\u306e\u5229\u70b9\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-02.jpg 1080w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-02-300x217.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-02-1024x740.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-02-768x555.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6dd35f81 elementor-widget elementor-widget-image\" data-id=\"6dd35f81\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/ja\/markets\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"780\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-03.jpg\" class=\"attachment-full size-full wp-image-905\" alt=\"\u6db2\u72b6\u30b7\u30ea\u30b3\u30fc\u30f3\u91d1\u578b\u8a2d\u8a08\u306e\u5229\u70b9\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-03.jpg 1080w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-03-300x217.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-03-1024x740.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/01\/Custom-Mold-Development-Process-03-768x555.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-33e39e7f e-flex e-con-boxed e-con e-parent\" data-id=\"33e39e7f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-53405a9d elementor-widget elementor-widget-text-editor\" data-id=\"53405a9d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"v1sp3e\" data-start=\"2161\" data-end=\"2222\"><strong>Advantages of Cold Runner Liquid Silicone Injection Molding<\/strong><\/h2><p data-start=\"2224\" data-end=\"2307\">Cold runner technology provides several benefits for precision silicone production.<\/p><h3 data-section-id=\"q0eut1\" data-start=\"2309\" data-end=\"2338\">Higher Injection Accuracy<\/h3><p data-start=\"2340\" data-end=\"2406\">Needle valves allow accurate control of silicone injection dosage.<\/p><h3 data-section-id=\"wf0drx\" data-start=\"2408\" data-end=\"2434\">Reduced Material Waste<\/h3><p data-start=\"2436\" data-end=\"2497\">Cold runner molds minimize flashing and reduce material loss.<\/p><h3 data-section-id=\"1nl3cjn\" data-start=\"2499\" data-end=\"2530\">Lower Post-Processing Costs<\/h3><p data-start=\"2532\" data-end=\"2620\">Because flashing remains limited, manufacturers spend less time trimming silicone parts.<\/p><h3 data-section-id=\"plxwvt\" data-start=\"2622\" data-end=\"2659\">Suitable for Automated Production<\/h3><p data-start=\"2661\" data-end=\"2719\">Cold runner systems support advanced automation including:<\/p><ul data-start=\"2721\" data-end=\"2813\"><li data-section-id=\"1tsh95x\" data-start=\"2721\" data-end=\"2743\"><p data-start=\"2723\" data-end=\"2743\">multi-cavity molds<\/p><\/li><li data-section-id=\"1lxepr7\" data-start=\"2744\" data-end=\"2764\"><p data-start=\"2746\" data-end=\"2764\">two-shot molding<\/p><\/li><li data-section-id=\"fr5cu2\" data-start=\"2765\" data-end=\"2813\"><p data-start=\"2767\" data-end=\"2813\">silicone overmolding with plastic components<\/p><\/li><\/ul><p data-start=\"2815\" data-end=\"2878\">This helps improve efficiency during large-scale manufacturing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4cfffdc7 e-flex e-con-boxed e-con e-parent\" data-id=\"4cfffdc7\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-245252e0 elementor-widget elementor-widget-text-editor\" data-id=\"245252e0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"194ape3\" data-start=\"2885\" data-end=\"2923\"><strong>Disadvantages of Cold Runner Systems<\/strong><\/h2><p data-start=\"2925\" data-end=\"2983\">Cold runner molds require more complex tooling structures.<\/p><p data-start=\"2985\" data-end=\"3081\">Each cavity often needs its own needle valve. These components significantly increase mold cost.<\/p><p data-start=\"3083\" data-end=\"3210\">For example, a mold containing four cavities may require four separate needle valves. This raises the total tooling investment.<\/p><p data-start=\"3212\" data-end=\"3308\">However many manufacturers still choose cold runner systems because of their superior precision.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3908a7e6 e-flex e-con-boxed e-con e-parent\" data-id=\"3908a7e6\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-65fc531a elementor-widget elementor-widget-text-editor\" data-id=\"65fc531a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"1aupbg\" data-start=\"3315\" data-end=\"3361\"><strong>Hot Runner Liquid Silicone Injection Molding<\/strong><\/h2><p data-start=\"3363\" data-end=\"3440\">Hot runner molds offer a simpler structure compared with cold runner systems.<\/p><p data-start=\"3442\" data-end=\"3580\">These molds typically operate without needle valves or shut-off valves. Instead they rely mainly on mixing systems and feeding mechanisms.<\/p><p data-start=\"3582\" data-end=\"3660\">Because of the simplified design, hot runner molds usually cost less to build.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-50ed0109 e-flex e-con-boxed e-con e-parent\" data-id=\"50ed0109\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2dcedf93 e-con-full e-flex e-con e-child\" data-id=\"2dcedf93\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-67808152 elementor-widget elementor-widget-text-editor\" data-id=\"67808152\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"ed5sjs\" data-start=\"3667\" data-end=\"3706\"><strong>When to Use Hot Runner Silicone Molds<\/strong><\/h2><p data-start=\"3708\" data-end=\"3776\">Hot runner systems work well for certain types of silicone products.<\/p><p data-start=\"3778\" data-end=\"3805\">Typical situations include:<\/p><ul data-start=\"3807\" data-end=\"3931\"><li data-section-id=\"1yp9kwn\" data-start=\"3807\" data-end=\"3832\"><p data-start=\"3809\" data-end=\"3832\">low production volume<\/p><\/li><li data-section-id=\"5v3ygi\" data-start=\"3833\" data-end=\"3883\"><p data-start=\"3835\" data-end=\"3883\">products without strict tolerance requirements<\/p><\/li><li data-section-id=\"1r0o1vg\" data-start=\"3884\" data-end=\"3931\"><p data-start=\"3886\" data-end=\"3931\">projects requiring lower tooling investment<\/p><\/li><\/ul><p data-start=\"3933\" data-end=\"4007\">Common applications include baby care accessories and cosmetic components.<\/p><p data-start=\"4009\" data-end=\"4094\">Many consumer brands choose hot runner molds during early product development stages.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7dd73f26 e-flex e-con-boxed e-con e-parent\" data-id=\"7dd73f26\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-76e5562c e-con-full e-flex e-con e-child\" data-id=\"76e5562c\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4da1a507 elementor-widget elementor-widget-text-editor\" data-id=\"4da1a507\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"1b7u0b3\" data-start=\"4101\" data-end=\"4152\"><strong>Applications of Liquid Silicone Injection Molding<\/strong><\/h2><p data-start=\"4154\" data-end=\"4295\">Liquid silicone molding technology serves many industries because silicone materials offer excellent mechanical and environmental properties.<\/p><p data-start=\"4297\" data-end=\"4340\">Below are several common application areas.<\/p><h3>Baby Care Silicone Products<\/h3><p data-start=\"4379\" data-end=\"4465\">Silicone injection molding plays an important role in baby care product manufacturing.<\/p><p data-start=\"4467\" data-end=\"4484\">Examples include:<\/p><ul data-start=\"4486\" data-end=\"4651\"><li data-section-id=\"1yvkfld\" data-start=\"4486\" data-end=\"4518\"><p data-start=\"4488\" data-end=\"4518\">silicone baby bottle nipples<\/p><\/li><li data-section-id=\"o470f3\" data-start=\"4519\" data-end=\"4545\"><p data-start=\"4521\" data-end=\"4545\">breast pump components<\/p><\/li><li data-section-id=\"l83rlu\" data-start=\"4546\" data-end=\"4578\"><p data-start=\"4548\" data-end=\"4578\">liquid silicone baby feeders<\/p><\/li><li data-section-id=\"14hxyvc\" data-start=\"4579\" data-end=\"4609\"><p data-start=\"4581\" data-end=\"4609\">silicone baby toothbrushes<\/p><\/li><li data-section-id=\"djjigp\" data-start=\"4610\" data-end=\"4633\"><p data-start=\"4612\" data-end=\"4633\">finger toothbrushes<\/p><\/li><li data-section-id=\"1x9akep\" data-start=\"4634\" data-end=\"4651\"><p data-start=\"4636\" data-end=\"4651\">teething toys<\/p><\/li><\/ul><p data-start=\"4653\" data-end=\"4782\">Silicone materials provide softness flexibility and food-grade safety. These characteristics make them ideal for infant products.<\/p><h3 data-section-id=\"15v38oa\" data-start=\"4789\" data-end=\"4819\">Medical Silicone Components<\/h3><p data-start=\"4821\" data-end=\"4968\">Medical equipment manufacturers often rely on liquid silicone injection molding because silicone materials maintain stability during long-term use.<\/p><p data-start=\"4970\" data-end=\"5006\">Common medical applications include:<\/p><ul data-start=\"5008\" data-end=\"5156\"><li data-section-id=\"1noj3mn\" data-start=\"5008\" data-end=\"5036\"><p data-start=\"5010\" data-end=\"5036\">silicone breathing masks<\/p><\/li><li data-section-id=\"g53ya5\" data-start=\"5037\" data-end=\"5053\"><p data-start=\"5039\" data-end=\"5053\">oxygen masks<\/p><\/li><li data-section-id=\"12j60b3\" data-start=\"5054\" data-end=\"5084\"><p data-start=\"5056\" data-end=\"5084\">silicone seals and gaskets<\/p><\/li><li data-section-id=\"hqzlk6\" data-start=\"5085\" data-end=\"5106\"><p data-start=\"5087\" data-end=\"5106\">silicone cushions<\/p><\/li><li data-section-id=\"1fcv8l5\" data-start=\"5107\" data-end=\"5128\"><p data-start=\"5109\" data-end=\"5128\">silicone cannulas<\/p><\/li><li data-section-id=\"m14lm0\" data-start=\"5129\" data-end=\"5156\"><p data-start=\"5131\" data-end=\"5156\">medical nose components<\/p><\/li><\/ul><p data-start=\"5158\" data-end=\"5253\">Medical grade silicone also supports sterilization processes and biocompatibility requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5ce01fdd e-flex e-con-boxed e-con e-parent\" data-id=\"5ce01fdd\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-22d4b8da elementor-widget elementor-widget-text-editor\" data-id=\"22d4b8da\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"c8om3x\" data-start=\"5260\" data-end=\"5330\"><strong>Why Silicone Seals and Gaskets Use Liquid Silicone Injection Molding<\/strong><\/h2><p data-start=\"5332\" data-end=\"5411\">Sealing components require accurate dimensions and stable material performance.<\/p><p data-start=\"5413\" data-end=\"5485\">Liquid silicone rubber offers several advantages for these applications.<\/p><h3 data-section-id=\"182t25y\" data-start=\"5487\" data-end=\"5518\">\u5e83\u3044\u6e29\u5ea6\u8010\u6027<\/h3><p data-start=\"5520\" data-end=\"5595\">Silicone materials withstand temperatures ranging from <strong data-start=\"5575\" data-end=\"5594\">\u2212155\u00b0F to 400\u00b0F<\/strong>.<\/p><h3 data-section-id=\"1q2lyzj\" data-start=\"5597\" data-end=\"5622\">Excellent Flexibility<\/h3><p data-start=\"5624\" data-end=\"5686\">Silicone maintains elasticity even after repeated compression.<\/p><h3 data-section-id=\"4md56t\" data-start=\"5688\" data-end=\"5711\">Adjustable Hardness<\/h3><p data-start=\"5713\" data-end=\"5793\">Liquid silicone materials normally range between <strong data-start=\"5762\" data-end=\"5792\">10 and 80 Shore A hardness<\/strong>.<\/p><h3 data-section-id=\"vbk7d0\" data-start=\"5795\" data-end=\"5827\">Strong Insulation Properties<\/h3><p data-start=\"5829\" data-end=\"5913\">Silicone works well in electrical applications because of its insulating capability.<\/p><h3 data-section-id=\"1cf1k4d\" data-start=\"5915\" data-end=\"5937\">Weather Resistance<\/h3><p data-start=\"5939\" data-end=\"6003\">Silicone materials resist UV radiation ozone moisture and aging.<\/p><h3 data-section-id=\"4rnnc1\" data-start=\"6005\" data-end=\"6028\">Chemical Resistance<\/h3><p data-start=\"6030\" data-end=\"6114\">Liquid silicone performs well against water mild acids and some oxidizing chemicals.<\/p><h3 data-section-id=\"p83ace\" data-start=\"6116\" data-end=\"6141\">Dimensional Stability<\/h3><p data-start=\"6143\" data-end=\"6225\">Silicone injection molded parts maintain accurate shapes even for complex designs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-58182cd8 e-flex e-con-boxed e-con e-parent\" data-id=\"58182cd8\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-21f250f elementor-widget elementor-widget-text-editor\" data-id=\"21f250f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"1vfe4ic\" data-start=\"6232\" data-end=\"6269\"><strong>Advantages Over Compression Molding<\/strong><\/h2><p data-start=\"6271\" data-end=\"6377\">Liquid silicone injection molding provides several improvements compared with compression molding methods.<\/p><h3 data-section-id=\"7zhv1l\" data-start=\"6379\" data-end=\"6399\">\u3088\u308a\u9ad8\u3044\u7cbe\u5ea6<\/h3><p data-start=\"6401\" data-end=\"6460\">Precision molds can achieve tolerances around <strong data-start=\"6447\" data-end=\"6459\">\u00b10.02 mm<\/strong>.<\/p><h3 data-section-id=\"n4fafl\" data-start=\"6462\" data-end=\"6490\">Faster Production Cycles<\/h3><p data-start=\"6492\" data-end=\"6590\">Typical molding cycles may reach approximately <strong data-start=\"6539\" data-end=\"6553\">15\u79d2<\/strong>, allowing efficient mass production.<\/p><h3 data-section-id=\"1ml6hjo\" data-start=\"6592\" data-end=\"6617\">Cleaner Manufacturing<\/h3><p data-start=\"6619\" data-end=\"6697\">Injection molding reduces contamination risk and supports automated processes.<\/p><h3 data-section-id=\"gey3k\" data-start=\"6699\" data-end=\"6729\">Consistent Product Quality<\/h3><p data-start=\"6731\" data-end=\"6815\">Automated dosing systems maintain stable injection volume across production batches.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b0c8a7f e-flex e-con-boxed e-con e-parent\" data-id=\"b0c8a7f\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-43c16f03 e-con-full e-flex e-con e-child\" data-id=\"43c16f03\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2871302e elementor-widget elementor-widget-text-editor\" data-id=\"2871302e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-section-id=\"1koalm8\" data-start=\"6822\" data-end=\"6885\"><strong>Selecting the Right Liquid Silicone Injection Molding Partner<\/strong><\/h2><p data-start=\"6887\" data-end=\"6974\">Choosing an experienced molding supplier helps manufacturers avoid production problems.<\/p><p data-start=\"6976\" data-end=\"7026\">When evaluating suppliers, consider these factors:<\/p><ul data-start=\"7028\" data-end=\"7179\"><li data-section-id=\"4z4hcx\" data-start=\"7028\" data-end=\"7061\"><p data-start=\"7030\" data-end=\"7061\">experience with LSR materials<\/p><\/li><li data-section-id=\"dohr4\" data-start=\"7062\" data-end=\"7088\"><p data-start=\"7064\" data-end=\"7088\">mold design capability<\/p><\/li><li data-section-id=\"1etszk1\" data-start=\"7089\" data-end=\"7109\"><p data-start=\"7091\" data-end=\"7109\">automation level<\/p><\/li><li data-section-id=\"nleuic\" data-start=\"7110\" data-end=\"7137\"><p data-start=\"7112\" data-end=\"7137\">quality control systems<\/p><\/li><li data-section-id=\"15ep2qq\" data-start=\"7138\" data-end=\"7179\"><p data-start=\"7140\" data-end=\"7179\">ability to support complex geometries<\/p><\/li><\/ul><p data-start=\"7181\" data-end=\"7287\">A capable manufacturer can provide engineering support from prototype development through full production.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-65610105 e-con-full e-flex e-con e-child\" data-id=\"65610105\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-468576cd elementor-widget elementor-widget-image\" data-id=\"468576cd\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/ja\/markets\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1350\" height=\"980\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/03\/Liquid-Silicone-Injection-Molding-7.jpg\" class=\"attachment-full size-full wp-image-1119\" alt=\"\u6db2\u72b6\u30b7\u30ea\u30b3\u30fc\u30f3\u5c04\u51fa\u6210\u5f62\u30ac\u30a4\u30c9\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/03\/Liquid-Silicone-Injection-Molding-7.jpg 1350w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/03\/Liquid-Silicone-Injection-Molding-7-300x218.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/03\/Liquid-Silicone-Injection-Molding-7-1024x743.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/03\/Liquid-Silicone-Injection-Molding-7-768x558.jpg 768w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/03\/Liquid-Silicone-Injection-Molding-7-18x12.jpg 18w\" sizes=\"(max-width: 1350px) 100vw, 1350px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3faffa83 e-flex e-con-boxed e-con e-parent\" data-id=\"3faffa83\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4df97265 elementor-widget elementor-widget-text-editor\" data-id=\"4df97265\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"7308\" data-end=\"7502\"><a href=\"https:\/\/xflsrmolding.com\/ja\/%e3%83%86%e3%82%af%e3%83%8e%e3%83%ad%e3%82%b8%e3%83%bc\/\">Liquid Silicone Injection Molding<\/a> continues gaining popularity across many industries. Manufacturers value this process because it offers precision efficiency and excellent material performance.<\/p><p data-start=\"7504\" data-end=\"7715\">Cold runner systems deliver higher accuracy while hot runner molds provide cost advantages for certain projects. Selecting the right system depends on product design tolerance requirements and production volume.<\/p><p data-start=\"7717\" data-end=\"7867\">For companies developing silicone components, understanding these technologies helps reduce production risk and improve long-term product reliability.<\/p><p data-start=\"7869\" data-end=\"8035\">A specialized manufacturer such as <a href=\"https:\/\/xflsrmolding.com\/ja\/%e3%83%86%e3%82%af%e3%83%8e%e3%83%ad%e3%82%b8%e3%83%bc\/\"><strong data-start=\"7904\" data-end=\"7912\">\u5f90\u798f<\/strong><\/a>, which focuses on LSR molding technology, can assist with mold development and high-quality silicone component production.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Blog Home Blog Liquid Silicone Injection Molding Guide Liquid Silicone Injection Molding: Cold Runner vs Hot Runner Systems Table of Contents Liquid Silicone Injection Molding has become one of the most advanced methods for producing precision silicone components. Many industries rely on this process for parts requiring flexibility, durability, and stable performance under extreme conditions. Compared with traditional molding technologies, liquid silicone molding offers faster production cycles and better dimensional control. Because of these advantages, manufacturers widely use it in medical devices, baby products, electronics, and sealing components. Understanding different runner systems and production methods helps engineers choose the right molding solution for each application. What Is Liquid Silicone Injection [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1119,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1113","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v24.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Liquid Silicone Injection Molding Guide<\/title>\n<meta name=\"description\" content=\"How liquid silicone injection molding works including cold runner and hot runner systems advantages applications and manufacturing benefits.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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Home Blog Liquid Silicone Injection Molding Guide Liquid Silicone Injection Molding: Cold Runner vs Hot Runner Systems Table of Contents Liquid Silicone Injection Molding has become one of the most advanced methods for producing precision silicone components. Many industries rely on this process for parts requiring flexibility, durability, and stable performance under extreme conditions.&hellip;","_links":{"self":[{"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/posts\/1113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/comments?post=1113"}],"version-history":[{"count":13,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/posts\/1113\/revisions"}],"predecessor-version":[{"id":1128,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/posts\/1113\/revisions\/1128"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/media\/1119"}],"wp:attachment":[{"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/media?parent=1113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/categories?post=1113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xflsrmolding.com\/ja\/wp-json\/wp\/v2\/tags?post=1113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}