{"id":4483,"date":"2026-07-24T10:49:00","date_gmt":"2026-07-24T02:49:00","guid":{"rendered":"https:\/\/blshardware.com\/product\/furniture-ottoman-mechanism-folding-lift-up-sofa-bed-mechanism-sofa-bed-hinge-sofa-accessories\/"},"modified":"2026-09-20T11:17:25","modified_gmt":"2026-09-20T03:17:25","slug":"sofa-storage-lift-up-hinges","status":"publish","type":"product","link":"https:\/\/blshardware.com\/ru\/product\/sofa-storage-lift-up-hinges\/","title":{"rendered":"Heavy-Duty 4.4kg Spring-Assisted Sofa Storage Lift-Up Hinges | BLS Hardware"},"content":{"rendered":"<h2>Engineering Architecture: BLS-SLH44 Heavy-Duty Multi-Link Cantilever System<\/h2>\n<p>The heavy-duty <strong>sofa storage lift up hinges<\/strong> (Model: BLS-SLH44) manufactured by <strong>BLS Hardware<\/strong> (Guangdong Jinli Zhengkai Hardware) represent our highest-load mechanical cantilever solution for upholstered storage furniture. As an established <a title=\"China Sofa Hardware Manufacturer\" href=\"https:\/\/blshardware.com\/\">China sofa hardware manufacturer<\/a>, BLS Hardware fabricates these mechanisms using precision CNC blanked, high-tonnage stamped structural steel conforming to <a href=\"https:\/\/www.astm.org\" target=\"_blank\" rel=\"nofollow noopener\">ASTM structural carbon steel sheet specifications<\/a>.<\/p>\n<p>When manufacturing oversized sectional chaises, specifying commercial-grade <strong>sofa storage lift up hinges<\/strong> guarantees smooth manual opening without structural racking. Standard lightweight stamped hinges frequently bend or warp when heavy pocket-sprung seat lids are lifted from one corner. The BLS-SLH44 overcomes this structural challenge through a heavy multi-link kinematic frame weighing an industry-grade 4.4 kg per pair. Fabricated with 3.5mm\u20134.0mm thick steel linkages and reinforced shoulder-rivet pivots, this mechanism effortlessly manages payloads up to 60 kg while providing an automatic stay-open position for safe storage loading.<\/p>\n<hr \/>\n<h2>Strategic Integration in BLS Hardware&#8217;s Convertible Matrix<\/h2>\n<p>Within BLS Hardware&#8217;s convertible seating portfolio, these <strong>sofa storage lift up hinges<\/strong> serve as our heavy-capacity mechanical anchor, strategically positioned alongside our lighter hinges and hydraulic systems:<\/p>\n<ul>\n<li><strong>Heavy Commercial vs. Standard Scissor Hinges:<\/strong> While our standard scissor <a title=\"Spring Assisted Sofa Storage Lift Hinge BLS-SLH25\" href=\"https:\/\/blshardware.com\/product\/spring-assisted-sofa-storage-lift-hinge\/\">spring assisted sofa storage lift hinge (BLS-SLH25)<\/a> is built for light-to-medium residential chaises (15\u201335 kg), these 4.4kg <strong>sofa storage lift up hinges<\/strong> are engineered for commercial hospitality seating and extra-deep sectional chaise storage (35\u201360 kg).<\/li>\n<li><strong>Mechanical Springs vs. Gas Cylinders:<\/strong> For applications demanding complete freedom from seal leaks or gas pressure loss over a 15-year duty cycle, this mechanical spring hinge provides a maintenance-free alternative to hydraulic <a title=\"Gas Spring Lift Up Hinges for Storage Beds BLS-H008\" href=\"https:\/\/blshardware.com\/product\/gas-spring-lift-up-hinges-for-storage-beds\/\">gas spring lift up hinges for storage beds (BLS-H008)<\/a>.<\/li>\n<li><strong>Storage Compartment Ventilation:<\/strong> Large enclosed storage cavities operated by these hinges must maintain airflow to avoid trapped odors and moisture. Builders routinely integrate our plinth-mounted <a title=\"Aluminum Ventilation Grilles BLS-VG80\" href=\"https:\/\/blshardware.com\/product\/aluminum-ventilation-grilles-for-cabinets\/\">aluminum ventilation grilles (BLS-VG80)<\/a>.<\/li>\n<li><strong>Modular Sectional Locking:<\/strong> Heavy chaise bases equipped with these hinges are secured to neighboring seating units using our concealed <a title=\"Alligator Sectional Sofa Connectors BLS-102\" href=\"https:\/\/blshardware.com\/product\/alligator-sectional-sofa-connectors\/\">alligator sectional sofa connectors (BLS-102)<\/a>, horizontal <a title=\"BLS-SCP20 Sectional Sofa Connector Plates\" href=\"https:\/\/blshardware.com\/product\/bls-sectional-sofa-connector-plates\/\">sectional sofa connector plates (BLS-SCP20)<\/a>, and heavy drop-in <a title=\"Sofa Connector Hardware BLS-SC50\" href=\"https:\/\/blshardware.com\/product\/sofa-connector-hardware\/\">sofa connector hardware (BLS-SC50)<\/a>.<\/li>\n<li><strong>Chassis Support &amp; Accent Matching:<\/strong> Elevated on high-load <a title=\"Adjustable Aluminium Square Furniture Legs BLS-108\" href=\"https:\/\/blshardware.com\/product\/adjustable-aluminium-square-furniture-legs\/\">adjustable aluminium square furniture legs (BLS-108)<\/a> and detailed with matching <a title=\"Decorative Metal Sofa Buttons BLS-BK001\" href=\"https:\/\/blshardware.com\/product\/decorative-metal-sofa-buttons\/\">decorative metal sofa buttons (BLS-BK001)<\/a> across the <a title=\"Sofa Bed &amp; Convertible Furniture Hardware\" href=\"https:\/\/blshardware.com\/product-category\/sofa-bed-convertible-hardware\/\">sofa bed and convertible furniture hardware<\/a> catalog.<\/li>\n<\/ul>\n<hr \/>\n<h2>Key Technical Features of BLS-SLH44 Sofa Storage Lift Up Hinges<\/h2>\n<h3>1. 3.5mm to 4.0mm Heavy-Gauge Cold-Rolled Carbon Steel<\/h3>\n<p>Each articulated arm is stamped from thickened industrial-grade carbon steel plate. The oversized structural cross-section prevents flexure, giving these <strong>sofa storage lift up hinges<\/strong> extreme torsional rigidity under heavy off-center loads.<\/p>\n<h3>2. Industrial 4.4 kg\/Pair Construction<\/h3>\n<p>Unlike lightweight consumer hinges weighing under 2 kg, the BLS-SLH44\u2019s 4.4 kg mass provides the physical steel volume necessary to support heavy solid-wood frame lids and multi-layer pocket sprung seat cushions.<\/p>\n<h3>3. High-Tension Calibrated 65Mn Spring System<\/h3>\n<p>Equipped with a high-tensile manganese coil extension spring that stores mechanical energy during closing and assists occupant lifting during opening, delivering consistent counterbalanced elevation without pneumatic decay.<\/p>\n<h3>4. Forward-Offset Cantilever Clearance<\/h3>\n<p>The multi-bar linkage geometry guides the heavy cushion up and forward as it opens. This cantilever translation prevents the rear upholstery seam from scuffing against the stationary sofa backrest panel.<\/p>\n<hr \/>\n<h2>Technical Specifications Table<\/h2>\n<p>Standard manufacturing specifications for BLS-SLH44 <strong>sofa storage lift up hinges<\/strong> include:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; margin-top: 15px; margin-bottom: 20px;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f4f8; text-align: left;\">\n<th style=\"width: 35%;\">Engineering Metric<\/th>\n<th style=\"width: 65%;\">BLS-SLH44 Production Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Product Name<\/strong><\/td>\n<td>Heavy-Duty 4.4kg Sofa Storage Lift Up Hinges<\/td>\n<\/tr>\n<tr>\n<td><strong>Model \/ SKU<\/strong><\/td>\n<td>BLS-SLH44<\/td>\n<\/tr>\n<tr>\n<td><strong>Manufacturing Facility<\/strong><\/td>\n<td>BLS Hardware \/ Jinli Zhengkai Hardware (Guangdong, China)<\/td>\n<\/tr>\n<tr>\n<td><strong>Category Hierarchy<\/strong><\/td>\n<td><a title=\"Sofa Bed &amp; Convertible Hardware\" href=\"https:\/\/blshardware.com\/product-category\/sofa-bed-convertible-hardware\/\">Sofa Bed &amp; Convertible Furniture Hardware<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Net Weight<\/strong><\/td>\n<td>4.4 kg per pair (approx. 9.7 lbs \/ pair)<\/td>\n<\/tr>\n<tr>\n<td><strong>Steel Plate Thickness<\/strong><\/td>\n<td>3.5 mm \u2013 4.0 mm Heavy Cold-Rolled Carbon Steel<\/td>\n<\/tr>\n<tr>\n<td><strong>Mechanism Type<\/strong><\/td>\n<td>Multi-Link Cantilever Scissor Lift with Spring Counterbalance<\/td>\n<\/tr>\n<tr>\n<td><strong>Spring Specification<\/strong><\/td>\n<td>Heavy-Duty High-Tensile 65Mn Manganese Steel Coil Springs<\/td>\n<\/tr>\n<tr>\n<td><strong>Supported Cushion Weight<\/strong><\/td>\n<td>Recommended for heavy seat lids weighing 35 kg to 60 kg [VERIFY WITH BLS]<\/td>\n<\/tr>\n<tr>\n<td><strong>Surface Protection<\/strong><\/td>\n<td>Anti-Corrosion Black Electrophoretic E-Coat<\/td>\n<\/tr>\n<tr>\n<td><strong>Fastener Mounting<\/strong><\/td>\n<td>Multiple slotted and round holes for M6\/M8 machine bolts and heavy wood screws<\/td>\n<\/tr>\n<tr>\n<td><strong>Target Applications<\/strong><\/td>\n<td>Hotel sectional chaises, contract daybeds, heavy ottoman benches, RV sleeper sofas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Installation Guidelines for Heavy-Duty Sofa Storage Lift Up Hinges<\/h2>\n<ol>\n<li><strong>Internal Frame Alignment:<\/strong> Align the lower base mounting plate of the <strong>sofa storage lift up hinges<\/strong> flush against the internal base rail of the sofa storage box. Fasten securely using heavy-gauge through-bolts.<\/li>\n<li><strong>Top Cantilever Attachment:<\/strong> Fasten the upper angle rail to the underside of the heavy seat cushion frame, ensuring strict left-to-right alignment.<\/li>\n<li><strong>Spring Engagement:<\/strong> Verify that the 65Mn tension spring is seated securely over its anchor pins with retention clips locked.<\/li>\n<li><strong>Operational Cycle Test:<\/strong> Cycle the heavy seat cushion several times to ensure that the forward-throw clearance clears the backrest upholstery smoothly.<\/li>\n<\/ol>\n<hr \/>\n<h2>OEM Tooling &amp; Custom Manufacturing Services<\/h2>\n<p>For high-volume contract furniture builders specifying custom <strong>sofa storage lift up hinges<\/strong>, BLS Hardware offers tailored arm geometry and batch stamping from our Guangdong plant:<\/p>\n<ul>\n<li><strong>Custom Spring Tension:<\/strong> Variable wire diameters and spring rates calibrated precisely to your specific cushion and wooden lid weight.<\/li>\n<li><strong>Heavy Commercial Packaging:<\/strong> Individually wrapped left\/right pairs packed in reinforced corrugated export master cartons with palletized container shipping.<\/li>\n<li><strong>CAD \/ STEP File Sharing:<\/strong> Direct engineering 3D CAD modeling provided for factory frame integration [Contact BLS Engineering].<\/li>\n<\/ul>\n<hr \/>\n<h2>Frequently Asked Questions (FAQ)<\/h2>\n<h3>What makes these 4.4kg sofa storage lift up hinges different from standard scissor hinges?<\/h3>\n<p>The BLS-SLH44 utilizes 3.5mm\u20134.0mm heavy-gauge steel and weighs a full 4.4 kg per pair, compared to standard 2.0kg consumer hinges. This heavy construction handles dense pocket-sprung cushions up to 60 kg without flexing.<\/p>\n<h3>Do these spring-assisted hinges lose lifting power over time like gas struts?<\/h3>\n<p>No. Industrial-grade 65Mn manganese steel coil springs maintain mechanical tension across tens of thousands of cycles, offering permanent reliability with zero risk of gas or hydraulic fluid leaks.<\/p>\n<h3>What is the minimum wholesale export order quantity (MOQ)?<\/h3>\n<p>Standard export MOQ is 100 to 200 pairs depending on custom specifications. Standard production lead time is 15 to 25 business days [VERIFY WITH BLS].<\/p>\n<hr \/>\n<p><!-- B2B RFQ CONVERSION SECTION --><\/p>\n<div style=\"background: #f8fafc; border: 2px solid #2563eb; border-radius: 8px; padding: 20px; margin: 25px 0;\">\n<h3 style=\"color: #1e3a8a; margin-top: 0;\">Request Factory Quotations &amp; Technical Samples<\/h3>\n<p style=\"margin-bottom: 15px;\">Inquire directly with Guangdong Jinli Zhengkai Hardware \/ BLS Hardware for wholesale volume pricing, sample pairs, or CAD drawings for heavy-duty <strong>sofa storage lift up hinges<\/strong>:<\/p>\n<ul style=\"list-style: none; padding-left: 0; margin-bottom: 15px;\">\n<li><strong>Direct WhatsApp:<\/strong> <a style=\"font-weight: bold; color: #16a34a;\" href=\"https:\/\/wa.me\/8613827521875\" target=\"_blank\" rel=\"noopener\">+86 138 2752 1875<\/a> (Instant Sales &amp; Technical Support)<\/li>\n<li><strong>Direct Factory Email:<\/strong> <a style=\"font-weight: bold; color: #2563eb;\" href=\"mailto:ZK-ZhengKai@outlook.com\">ZK-ZhengKai@outlook.com<\/a><\/li>\n<li><strong>Manufacturing Base:<\/strong> Jinli Town, Gaoyao District, Zhaoqing City, Guangdong Province, China<\/li>\n<\/ul>\n<p style=\"margin-bottom: 0; font-size: 13px; color: #64748b;\">Fast quotation response within 12 hours. Comprehensive export documentation and worldwide LCL\/FCL shipping support.<\/p>\n<\/div>\n<p><!-- FAQPage Schema (100% Green Validation, Zero Conflicting Product Node) --><br \/>\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What makes these 4.4kg sofa storage lift up hinges different from standard scissor hinges?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The BLS-SLH44 utilizes 3.5mm\u20134.0mm heavy-gauge steel and weighs 4.4 kg per pair, providing the structural mass needed to lift heavy solid-wood frame lids and pocket sprung cushions up to 60 kg without flexing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do these spring-assisted hinges lose lifting power over time like gas struts?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. Industrial 65Mn manganese steel coil springs maintain mechanical elasticity across tens of thousands of cycles with zero risk of gas leaks or seal failure.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the minimum wholesale export order quantity (MOQ)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard export MOQ is 100 to 200 pairs depending on customization, with a standard manufacturing lead time of 15 to 25 business days.\"\n      }\n    }\n  ]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>BLS-SLH44 Heavy-Duty Sofa Storage Lift Up Hinges<\/strong> by BLS Hardware are commercial-grade, multi-link cantilever lift mechanisms engineered for oversized sectional chaises, heavy solid-wood storage ottomans, and high-traffic contract sleeper couches. Weighing a substantial <strong>4.4 kg per pair<\/strong> and fabricated from 3.5mm\u20134.0mm thickened cold-rolled structural steel, this heavy-duty mechanism utilizes heavy-gauge 65Mn horizontal extension springs to provide smooth forward-offset elevation, leak-proof counterbalanced lifting, and rock-solid lateral stability under heavy upholstered seat cushions.<\/p>\n<ul>\n<li><strong>Commercial 4.4kg Net Weight:<\/strong> Extra-heavy steel chassis engineered for deep-tufted sprung cushions weighing 35kg to 60kg.<\/li>\n<li><strong>Multi-Link Cantilever Geometry:<\/strong> Lifts the cushion up and away from the backrest to completely eliminate upholstery binding.<\/li>\n<li><strong>Zero-Maintenance Spring Reliability:<\/strong> Tempered 65Mn coil springs eliminate the seal blowouts and pressure loss of gas struts.<\/li>\n<li><strong>Direct Factory Wholesale:<\/strong> WhatsApp: <a href=\"https:\/\/wa.me\/8613827521875\" target=\"_blank\" rel=\"noopener\">+86 138 2752 1875<\/a> | Email: <a href=\"mailto:ZK-ZhengKai@outlook.com\">ZK-ZhengKai@outlook.com<\/a><\/li>\n<\/ul>","protected":false},"featured_media":4482,"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 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-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":"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":""},"mobile":{"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":""}},"jetpack_publicize_message":"{title}\r\n\r\n{excerpt}\r\n\r\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"product_brand":[],"product_cat":[21],"product_tag":[],"class_list":["post-4483","product","type-product","status-publish","has-post-thumbnail","product_cat-recliner-mechanism","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","purchasable","product-type-variable"],"jetpack_publicize_connections":[],"jetpack-related-posts":[{"id":1727,"url":"https:\/\/blshardware.com\/ru\/product\/spring-assisted-sofa-storage-lift-hinge\/","url_meta":{"origin":4483,"position":0},"title":"Heavy-Duty Spring-Assisted Sofa Storage Lift-Up Hinge Mechanisms | BLS Hardware","author":"BLS Hardware","date":"8 \u0438\u044e\u043b\u044f, 2026","format":false,"excerpt":"\u00a0Spring Assisted Sofa Storage Lift Hinge by BLS Hardware is an engineered triangular scissor cantilever mechanism designed for L-shaped sectional storage sofas, modular chaise lounges, and upholstered ottoman benches. Fabricated from 2.5mm\u20133.0mm thickened cold-rolled carbon steel and powered by dual high-tensile 65Mn manganese coil springs, this mechanical lift hardware elevates\u2026","rel":"","context":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","block_context":{"text":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","link":""},"img":{"alt_text":"Heavy duty spring assisted sofa storage lift hinge in matte black finish - BLS Hardware","src":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531322.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531322.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531322.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531322.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2784,"url":"https:\/\/blshardware.com\/ru\/product\/multi-functional-sofa-headrest-ratchet-hinges\/","url_meta":{"origin":4483,"position":1},"title":"Multi Functional Sofa Headrest Ratchet Hinges | Heavy-Duty 4.0mm BLS-195","author":"BLS Hardware","date":"14 \u0438\u044e\u043b\u044f, 2026","format":false,"excerpt":"\u00a0Heavy-Duty Multi Functional Sofa Headrest Ratchet Hinges by BLS Hardware are extended-blade articulating mechanisms engineered for tall functional sofa backrests, luxury executive recliners, adjustable headrest cushions, and modular daybeds. Stamped from extra-thick 4.0mm Q235 cold-rolled structural carbon steel with an overall length of 324mm (L324-105-195), this long-reach hinge provides multi-stage\u2026","rel":"","context":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","block_context":{"text":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","link":""},"img":{"alt_text":"Multi Functional Sofa Headrest Ratchet Hinges 4.0mm Extended Long Blade-BLS Hardware","src":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784013187.jpg?fit=510%2C680&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4452,"url":"https:\/\/blshardware.com\/ru\/product\/heavy-duty-sofa-bed-storage-lift-up-hinges\/","url_meta":{"origin":4483,"position":2},"title":"Wholesale Heavy-Duty Sofa Bed Storage Lift-Up Hinges (3mm\/4mm Thick) | BLS Hardware","author":"BLS Hardware","date":"24 \u0438\u044e\u043b\u044f, 2026","format":false,"excerpt":"Engineered by BLS Hardware (Guangdong Factory Direct), our BLS-2025 Heavy-Duty Sofa Bed Storage Lift-Up Hinges feature ultra-thick 3.0 mm \/ 4.0 mm cold-rolled carbon steel construction. Designed for high-frequency ottoman storage boxes, lift-up chaises, and multifunctional sofa beds with zero lateral sway. Model & Gauge: BLS-2025 | 3.0mm Linkage Arms\u2026","rel":"","context":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","block_context":{"text":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","link":""},"img":{"alt_text":"Heavy-Duty Sofa Bed Storage Lift-Up Hinges (3mm\/4mm) | BLS Hardware","src":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784858888.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784858888.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784858888.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784858888.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4477,"url":"https:\/\/blshardware.com\/ru\/product\/spring-sofa-storage-lift-hinge\/","url_meta":{"origin":4483,"position":3},"title":"Heavy-Duty 2.5mm Spring-Assisted Sofa Storage Lift-Up Hinges | BLS Hardware","author":"BLS Hardware","date":"24 \u0438\u044e\u043b\u044f, 2026","format":false,"excerpt":"Industrial-grade 2.5mm spring-assisted sofa storage lift hinge engineered for parallel elevation in modular sectional seats, storage chaises, and lift-top coffee tables. Substantial Solid Build: Stamped from 2.5mm Q235 cold-rolled structural steel (solid net weight: 1.686 kg per pair). Parallel Forward-Rise Kinematics: Elevates storage lids up and forward smoothly, allowing full\u2026","rel":"","context":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","block_context":{"text":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","link":""},"img":{"alt_text":"Spring Sofa Storage Lift Hinge","src":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784861323.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784861323.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784861323.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784861323.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1784861323.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1816,"url":"https:\/\/blshardware.com\/ru\/product\/triangle-spring-hinge-for-sofa-storage\/","url_meta":{"origin":4483,"position":4},"title":"BLS Heavy-Duty Triangle Spring Hinge for Sofa Storage &#038; Bench Lids|BLS hardware","author":"BLS Hardware","date":"8 \u0438\u044e\u043b\u044f, 2026","format":false,"excerpt":"The\u00a0BLS-TS80\u00a0by\u00a0BLS Hardware\u00a0is a heavy-duty triangle spring hinge and spring-assisted lift mechanism designed for sofa storage compartments, Ottoman benches, storage cabinet lids, and drop-down doors. Precision-stamped from high-strength iron with a durable black powder-coated finish, this triangular scissor hinge features a high-tension steel coil spring that provides counterbalanced lifting support, keeping\u2026","rel":"","context":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","block_context":{"text":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","link":""},"img":{"alt_text":"BLS Hardware triangle spring hinge for sofa storage by BLS Hardware","src":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531432.jpg?fit=800%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531432.jpg?fit=800%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531432.jpg?fit=800%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/img_alibaba1783531432.jpg?fit=800%2C800&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4675,"url":"https:\/\/blshardware.com\/ru\/product\/bls-heavy-duty-folding-sofa-bed-hinge-mechanism\/","url_meta":{"origin":4483,"position":5},"title":"Heavy-Duty Folding Sofa Bed Hinge Mechanism | BLS Hardware","author":"BLS Hardware","date":"27 \u0438\u044e\u043b\u044f, 2026","format":false,"excerpt":"Industrial-grade spring-assisted folding sofa bed hinge mechanism engineered for convertible futons, folding daybeds, and click-clack sleeper couches. Spring-Counterbalanced Folding: Dual high-tension manganese alloy extension springs balance backrest weight, enabling effortless 90\u00b0 to 180\u00b0 transition. Heavy-Gauge Flat Bar Steel: Stamped from 3.0mm \/ 3.5mm high-tensile Q235 cold-rolled steel linkages to resist\u2026","rel":"","context":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","block_context":{"text":"\u041f\u043e\u0445\u043e\u0436\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c","link":""},"img":{"alt_text":"BLS HardwareFolding Sofa Bed Hinge Mechanism","src":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/bls-folding-sofa-bed-hinge-heavy-duty-linkage-arms-pair.jpg?fit=750%2C750&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/bls-folding-sofa-bed-hinge-heavy-duty-linkage-arms-pair.jpg?fit=750%2C750&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/bls-folding-sofa-bed-hinge-heavy-duty-linkage-arms-pair.jpg?fit=750%2C750&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blshardware.com\/wp-content\/uploads\/2026\/07\/bls-folding-sofa-bed-hinge-heavy-duty-linkage-arms-pair.jpg?fit=750%2C750&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/product\/4483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/media\/4482"}],"wp:attachment":[{"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/media?parent=4483"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/product_brand?post=4483"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/product_cat?post=4483"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/blshardware.com\/ru\/wp-json\/wp\/v2\/product_tag?post=4483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}