{"id":4743,"date":"2026-07-27T15:00:15","date_gmt":"2026-07-27T07:00:15","guid":{"rendered":"https:\/\/blshardware.com\/product\/sofa-bed-lift-mechanism-hinge-sofa-hinge-adjustable-sofa-mechanism\/"},"modified":"2026-09-04T11:24:05","modified_gmt":"2026-09-04T03:24:05","slug":"bls-sofa-bed-lifter-mechanism","status":"publish","type":"product","link":"https:\/\/blshardware.com\/ru\/product\/bls-sofa-bed-lifter-mechanism\/","title":{"rendered":"sofa bed lift mechanism hinge sofa hinge adjustable sofa mechanism"},"content":{"rendered":"<h2>BLS-SBL120 Heavy-Duty Sofa Bed Lifter Mechanism: Engineering &amp; OEM Supply<\/h2>\n<p>The <strong>BLS-SBL120<\/strong> is an industrial-grade <a href=\"https:\/\/blshardware.com\/ru\/\"><strong>sofa bed lifter mechanism<\/strong><\/a> developed by <strong>BLS Hardware<\/strong>, a premier <a href=\"https:\/\/blshardware.com\/ru\/\"><strong>sofa hardware manufacturer<\/strong><\/a> based in Guangdong, China. Specifically engineered for space-saving furniture manufacturers, this spring-assisted <strong>sofa bed lifter mechanism<\/strong> delivers smooth opening and safe holding power for storage sofa beds, sleeper couches, and convertible chaise lounges.<\/p>\n<hr \/>\n<h3>Technical Specifications<\/h3>\n<table style=\"width: 100%; border-collapse: collapse;\" border=\"1\">\n<tbody>\n<tr>\n<td style=\"padding: 8px; width: 30%;\"><strong>Model SKU<\/strong><\/td>\n<td style=\"padding: 8px;\">BLS-SBL120<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Product Category<\/strong><\/td>\n<td><a href=\"https:\/\/blshardware.com\/ru\/\">Sofa Bed Mechanisms &amp; Functional Hinges<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Hardware Type<\/strong><\/td>\n<td>Heavy-Duty Spring-Assisted <strong>Sofa Bed Lifter Mechanism<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Material<\/strong><\/td>\n<td>Q235 High-Strength Cold Rolled Steel<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Spring Specification<\/strong><\/td>\n<td>Dual 65Mn Oil-Tempered Manganese Steel Tension Springs<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Surface Finish<\/strong><\/td>\n<td>White Zinc Plated \/ Blue Zinc \/ Black Electrophoretic Coating<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Fatigue Life Cycle<\/strong><\/td>\n<td>Tested over 25,000 continuous open\/close cycles under load<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>MOQ &amp; Lead Time<\/strong><\/td>\n<td>500 Pairs (Wholesale OEM\/ODM) | 15\u201325 Business Days<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>Why Choose the BLS-SBL120 Sofa Bed Lifter Mechanism for OEM Projects?<\/h3>\n<ul>\n<li><strong>Effortless Spring Counterbalance:<\/strong> The calibrated dual 65Mn tension springs counterbalance the weight of heavy upholstered mattress platforms, allowing end users to open storage spaces effortlessly.<\/li>\n<li><strong>Anti-Deformation Multi-Link Arm:<\/strong> Reinforced rivet pivot points and heavy-gauge linkage arms prevent lateral swaying and hinge deformation during frequent conversions.<\/li>\n<li><strong>Precision Mounting Hole Matrix:<\/strong> Standardized mounting holes allow rapid assembly onto wooden or tubular metal frames, saving production cycle time on assembly lines.<\/li>\n<\/ul>\n<hr \/>\n<h3>Complete Hardware Solutions by BLS Hardware<\/h3>\n<p>As part of the BLS integrated furniture hardware ecosystem, this <strong>sofa bed lifter mechanism<\/strong> can be seamlessly combined with our matching hardware systems for full sofa manufacturing:<\/p>\n<ul>\n<li>Pair with our <strong>Sectional Sofa Interlocking Connectors<\/strong> for modular stability.<\/li>\n<li>Compatible with BLS <strong>Heavy-Duty Metal Sofa Legs &amp; Support Brackets<\/strong> for high weight-bearing frames.<\/li>\n<\/ul>\n<hr \/>\n<h3>Frequently Asked Questions (B2B Procurement)<\/h3>\n<h4>Q1: Can BLS Hardware customize this sofa bed lifter mechanism for custom frame weights?<\/h4>\n<p><strong>A:<\/strong> Yes. As an original sofa hardware manufacturer, BLS Hardware provides full OEM\/ODM mold customization, including custom steel thickness, spring wire diameter, and mounting hole positions based on your CAD\/DWG technical drawings.<\/p>\n<h4>Q2: What is the salt spray resistance of the zinc plating?<\/h4>\n<p><strong>A:<\/strong> Our standard zinc-plated finish passes a minimum 48-hour neutral salt spray test (NSS), with optional 72-hour+ marine-grade electroplating available upon request.<\/p>\n<p>\ud83d\udce6 <strong>Request a Quick Quote &amp; Free Testing Samples:<\/strong><br \/>\n\u2022 <strong>WhatsApp \/ Telegram:<\/strong> <a href=\"https:\/\/wa.me\/message\/M6FPBFEHD773P1\" target=\"_blank\" rel=\"noopener\">+86 138 2752 1875<\/a><br \/>\n\u2022 <strong>Email:<\/strong> ZK-ZhengKai@outlook.com<br \/>\n\u2022 <strong>Official Website:<\/strong> <a href=\"https:\/\/blshardware.com\/ru\/\">https:\/\/blshardware.com\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>The <strong>BLS-SBL120<\/strong> is a heavy-duty, spring-assisted <strong>sofa bed lifter mechanism<\/strong> engineered for storage sofa beds, sleeper sectionals, and ottoman bed platforms. Built with heavy-gauge cold-rolled steel and dual 65Mn high-tensile springs to ensure smooth, balanced lifting with zero wobble.<\/p>\n<ul>\n<li><strong>Mechanism Type:<\/strong> Spring-Assisted Multi-Link Scissor Lift System<\/li>\n<li><strong>Material &amp; Thickness:<\/strong> Heavy-Gauge Cold-Rolled Carbon Steel (2.0mm \/ 2.5mm)<\/li>\n<li><strong>Spring System:<\/strong> Dual 65Mn Manganese High-Tension Springs<\/li>\n<li><strong>Surface Treatment:<\/strong> Corrosion-Resistant Zinc Plating (RoHS Compliant) \/ Black Electrophoresis<\/li>\n<li><strong>Manufacturing:<\/strong> Direct OEM\/ODM custom supply by <a href=\"https:\/\/blshardware.com\/ru\/\"><strong>BLS Hardware<\/strong><\/a><\/li>\n<\/ul>","protected":false},"featured_media":4788,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","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":"","ast-breadcrumbs-content":"","ast-featured-img":"","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-4)","background-image":"","background-repeat":"repeat","background-position":"center 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