{"id":3645,"date":"2026-09-03T11:49:00","date_gmt":"2026-09-03T03:49:00","guid":{"rendered":"https:\/\/www.universalchain.net\/?p=3645"},"modified":"2026-09-08T10:38:08","modified_gmt":"2026-09-08T02:38:08","slug":"leaf-chain-types-bl-al-ll","status":"publish","type":"post","link":"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/","title":{"rendered":"Types de cha\u00eenes \u00e0 lamelles expliqu\u00e9s : Cha\u00eenes \u00e0 lamelles des s\u00e9ries BL, AL, LL pour applications de chariots \u00e9l\u00e9vateurs et de palans"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" >Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Basculer la table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Basculer<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Quick_Answer\" title=\"R\u00e9ponse rapide&nbsp;\">R\u00e9ponse rapide&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#What_are_Leaf_Chain_Grades\" title=\"Quelles sont les classes de cha\u00eenes \u00e0 lamelles ?&nbsp;\">Quelles sont les classes de cha\u00eenes \u00e0 lamelles ?&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#What_are_the_Specifications_and_Common_Applications_of_BL_Series_Leaf_Chain\" title=\"Quelles sont les sp\u00e9cifications et les applications courantes de la cha\u00eene \u00e0 lamelles de la s\u00e9rie BL ?&nbsp;\">Quelles sont les sp\u00e9cifications et les applications courantes de la cha\u00eene \u00e0 lamelles de la s\u00e9rie BL ?&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Where_are_AL_Series_Leaf_Chains_Best_Utilized\" title=\"O\u00f9 les cha\u00eenes \u00e0 lamelles de la s\u00e9rie AL sont-elles le mieux utilis\u00e9es ?\">O\u00f9 les cha\u00eenes \u00e0 lamelles de la s\u00e9rie AL sont-elles le mieux utilis\u00e9es ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#What_are_the_Heavy-Duty_and_Special_Applications_of_LL_Series_Leaf_Chain\" title=\"Quelles sont les applications lourdes et sp\u00e9ciales de la cha\u00eene \u00e0 lamelles de la s\u00e9rie LL ?&nbsp;\">Quelles sont les applications lourdes et sp\u00e9ciales de la cha\u00eene \u00e0 lamelles de la s\u00e9rie LL ?&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#BL_vs_AL_vs_LL_Series_Comparison_Table\" title=\"S\u00e9rie BL vs AL vs LL : Tableau comparatif\">S\u00e9rie BL vs AL vs LL : Tableau comparatif<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#How_to_Read_a_Leaf_Chain_Size_Chart\" title=\"Comment lire un tableau de tailles de cha\u00eenes \u00e0 lamelles ?\">Comment lire un tableau de tailles de cha\u00eenes \u00e0 lamelles ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#How_Do_You_Select_a_BL_Series_Forklift_Mast_Chain_by_Lift_Capacity\" title=\"Comment s\u00e9lectionner une cha\u00eene de m\u00e2t de chariot \u00e9l\u00e9vateur de la s\u00e9rie BL en fonction de la capacit\u00e9 de levage ?\">Comment s\u00e9lectionner une cha\u00eene de m\u00e2t de chariot \u00e9l\u00e9vateur de la s\u00e9rie BL en fonction de la capacit\u00e9 de levage ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Which_LL_Series_Chains_Work_Best_for_Hoisting_and_Cranes\" title=\"Quelles cha\u00eenes de la s\u00e9rie LL conviennent le mieux aux palans et aux grues ?\">Quelles cha\u00eenes de la s\u00e9rie LL conviennent le mieux aux palans et aux grues ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Leaf_Chain_Installation_Safety_Inspection_Checklist\" title=\"Liste de contr\u00f4le d&#039;installation et d&#039;inspection de s\u00e9curit\u00e9 des cha\u00eenes \u00e0 lamelles\">Liste de contr\u00f4le d'installation et d'inspection de s\u00e9curit\u00e9 des cha\u00eenes \u00e0 lamelles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Why_is_Sourcing_ISO-Certified_Leaf_Chains_Essential\" title=\"Pourquoi l&#039;approvisionnement en cha\u00eenes \u00e0 lamelles certifi\u00e9es ISO est-il essentiel ?\">Pourquoi l'approvisionnement en cha\u00eenes \u00e0 lamelles certifi\u00e9es ISO est-il essentiel ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Frequently_Asked_Questions_FAQs\" title=\"Foire aux questions (FAQ)&nbsp;\">Foire aux questions (FAQ)&nbsp;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#What_is_a_lift_chain_on_a_forklift\" title=\"Qu&#039;est-ce qu&#039;une cha\u00eene de levage sur un chariot \u00e9l\u00e9vateur ?\">Qu'est-ce qu'une cha\u00eene de levage sur un chariot \u00e9l\u00e9vateur ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Is_grade_43_or_70_chain_better\" title=\"La cha\u00eene de grade 43 ou 70 est-elle meilleure ?\">La cha\u00eene de grade 43 ou 70 est-elle meilleure ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#What_is_38_chain_rated_to_lift\" title=\"Quelle est la capacit\u00e9 de levage d&#039;une cha\u00eene de 3\/8 ?\">Quelle est la capacit\u00e9 de levage d'une cha\u00eene de 3\/8 ?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/#Photo_Evidence\" title=\"Preuve photographique\">Preuve photographique<\/a><\/li><\/ul><\/nav><\/div>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4-1024x572.webp\" alt=\"TYPES DE CHA\u00ceNES \u00c0 LAMELLES\" class=\"wp-image-3647\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4-1024x572.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4-300x167.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4-768x429.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4-1536x858.webp 1536w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4-18x10.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image2-4.webp 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-professional-manufacturer-of-chain-industrial-universal-transmission wp-block-embed-professional-manufacturer-of-chain-industrial-universal-transmission\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"gSgkKLuYXE\"><a href=\"https:\/\/www.universalchain.net\/fr\/leaf-chains-supplier\/\">Fournisseur de cha\u00eenes \u00e0 feuilles<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u300a Fournisseur de cha\u00eenes \u00e0 lamelles \u300b\u2014Fabricant professionnel de cha\u00eenes industrielles - Universal Transmission\" src=\"https:\/\/www.universalchain.net\/leaf-chains-supplier\/embed\/#?secret=RvPwNLaiiv#?secret=gSgkKLuYXE\" data-secret=\"gSgkKLuYXE\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quick_Answer\"><\/span><strong>R\u00e9ponse rapide&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une cha\u00eene \u00e0 lamelles se compose de plaques d'acier entrelac\u00e9es et de goupilles con\u00e7ues strictement pour le levage par tension \u00e0 haute charge sans pignons. Les normes ASME\/ISO d\u00e9finissent trois types majeurs de cha\u00eenes \u00e0 lamelles : BL (lourde), AL (l\u00e9g\u00e8re) et LL (norme m\u00e9trique europ\u00e9enne).&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.universalchain.net\/fr\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cha\u00eene Universal<\/a> fabrique une s\u00e9rie compl\u00e8te de produits certifi\u00e9s <a href=\"https:\/\/www.universalchain.net\/fr\/leaf-chains-supplier\/\" target=\"_blank\" rel=\"noreferrer noopener\">cha\u00eenes de feuilles<\/a> qui respectent les normes ISO 4347, ASME B29.8M et DIN 8152. Notre usine produit plus de 30 millions de m\u00e8tres de cha\u00eene par an avec z\u00e9ro taux de d\u00e9faut critique sur plus de 80 march\u00e9s d'exportation.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_Leaf_Chain_Grades\"><\/span><strong>Quelles sont les classes de cha\u00eenes \u00e0 lamelles ?&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La cha\u00eene \u00e0 lamelles se compose de plaques d'acier empil\u00e9es, reli\u00e9es par des goupilles en acier tremp\u00e9. Les cha\u00eenes \u00e0 lamelles n'ont pas de rouleaux, de bagues ou de dents comme les cha\u00eenes \u00e0 rouleaux ordinaires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les plaques sont entra\u00een\u00e9es sur des poulies pour effectuer un mouvement dans des op\u00e9rations de levage altern\u00e9es. Ainsi, elle est con\u00e7ue pour produire le plus haut niveau de r\u00e9sistance \u00e0 la traction dans une taille de cadre minimale. Les cha\u00eenes \u00e0 lamelles sont recommand\u00e9es pour \u00eatre utilis\u00e9es dans les assemblages de cha\u00eenes de m\u00e2t de chariots \u00e9l\u00e9vateurs des ing\u00e9nieurs m\u00e9caniciens, les syst\u00e8mes de contrepoids et les palans a\u00e9riens.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous pouvez examiner le la\u00e7age des plaques et le diam\u00e8tre de la goupille pour d\u00e9terminer une cha\u00eene \u00e0 lamelles. De plus, vous pouvez <a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/how-to-measure-chain-pitch\/\" target=\"_blank\" rel=\"noreferrer noopener\">calculer le pas<\/a> en mesurant la distance entre les centres des goupilles. Pour plus d'informations sur les diff\u00e9rences m\u00e9caniques des cha\u00eenes, visitez l'article de Universal Chain <a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/leaf-chain-selection-guide-types-features-applications\/\" target=\"_blank\" rel=\"noreferrer noopener\">diff\u00e9rences et applications des cha\u00eenes \u00e0 lamelles par rapport aux cha\u00eenes \u00e0 rouleaux<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_Specifications_and_Common_Applications_of_BL_Series_Leaf_Chain\"><\/span><strong>Quelles sont les sp\u00e9cifications et les applications courantes de<\/strong> <strong>la cha\u00eene \u00e0 lamelles de la s\u00e9rie BL<\/strong><strong>?&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La cha\u00eene \u00e0 lamelles de la s\u00e9rie BL (\u00e9galement class\u00e9e comme s\u00e9rie LH selon les normes ISO) est \u00e9quip\u00e9e de plaques \u00e9paisses et de grandes goupilles. L'\u00e9paisseur de la plaque est \u00e9gale \u00e0 l'\u00e9paisseur de la plaque de maillon ext\u00e9rieur de la cha\u00eene \u00e0 rouleaux de plus grande taille <a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/what-is-ansi-roller-chain\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cha\u00eene \u00e0 rouleaux ANSI<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Par exemple, l'\u00e9paisseur de la plaque et le diam\u00e8tre des goupilles dans la cha\u00eene BL6 sont similaires \u00e0 ceux de la cha\u00eene \u00e0 rouleaux ANSI 80. De cette fa\u00e7on, la r\u00e9sistance \u00e0 la fatigue et la r\u00e9sistance \u00e0 la traction de la cha\u00eene seront augment\u00e9es sous des charges d'impact \u00e9lev\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.universalchain.net\/fr\/products\/leaf-chain%ef%bc%88bl-series%ef%bc%89\/\" target=\"_blank\" rel=\"noreferrer noopener\">cha\u00eene \u00e0 lamelles de la s\u00e9rie BL<\/a> est largement utilis\u00e9e dans les industries pour la fabrication de machines de levage de grande capacit\u00e9. Cela comprend les ascenseurs \u00e0 contrepoids lourds, les m\u00e2ts de chariots \u00e9l\u00e9vateurs primaires et les portiques de manutention de conteneurs.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4-1024x572.webp\" alt=\"Cha\u00eene \u00e0 lamelles pour chariots \u00e9l\u00e9vateurs et applications de levage\" class=\"wp-image-3648\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4-1024x572.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4-300x167.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4-768x429.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4-1536x858.webp 1536w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4-18x10.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image3-4.webp 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-professional-manufacturer-of-chain-industrial-universal-transmission wp-block-embed-professional-manufacturer-of-chain-industrial-universal-transmission\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"S2oYKcCmbt\"><a href=\"https:\/\/www.universalchain.net\/fr\/products\/leaf-chain%ef%bc%88bl-series%ef%bc%89\/\">Cha\u00eene de feuilles (s\u00e9rie BL)<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u300a Cha\u00eene \u00e0 lamelles (s\u00e9rie BL) \u300b\u2014Fabricant professionnel de cha\u00eenes industrielles - Universal Transmission\" src=\"https:\/\/www.universalchain.net\/products\/leaf-chain%ef%bc%88bl-series%ef%bc%89\/embed\/#?secret=E50cSaCcGh#?secret=S2oYKcCmbt\" data-secret=\"S2oYKcCmbt\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_are_AL_Series_Leaf_Chains_Best_Utilized\"><\/span><strong>O\u00f9 sont<\/strong> <strong>la cha\u00eene \u00e0 lamelles de la s\u00e9rie AL<\/strong><strong>mieux utilis\u00e9es ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La cha\u00eene \u00e0 lamelles de la s\u00e9rie AL se compose de plaques de maillons ayant la m\u00eame \u00e9paisseur et la m\u00eame forme que celles des maillons de goupille de cha\u00eene \u00e0 rouleaux ANSI. La construction \u00e9lanc\u00e9e entra\u00eene un poids de cha\u00eene r\u00e9duit ainsi qu'une bonne capacit\u00e9 de traction lin\u00e9aire. Cette cha\u00eene trouve son application dans les zones o\u00f9 il n'y a pas de chocs violents ni de cycles de fatigue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les syst\u00e8mes de manutention l\u00e9gers utilisent ces cha\u00eenes pour les op\u00e9rations de levage \u00e0 basse vitesse. L'utilisation typique est pour les contrepoids dans les machines-outils, les petites fl\u00e8ches \u00e9l\u00e9vatrices et les syst\u00e8mes d'\u00e9quilibrage l\u00e9gers.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4-1024x572.webp\" alt=\"Cha\u00eene \u00e0 lamelles s\u00e9rie AL pour chariots \u00e9l\u00e9vateurs et \u00e9quipements de levage\" class=\"wp-image-3649\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4-1024x572.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4-300x167.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4-768x429.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4-1536x858.webp 1536w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4-18x10.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image7-4.webp 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-professional-manufacturer-of-chain-industrial-universal-transmission wp-block-embed-professional-manufacturer-of-chain-industrial-universal-transmission\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"YVh5T8uPff\"><a href=\"https:\/\/www.universalchain.net\/fr\/products\/leaf-chain%ef%bc%88al-series%ef%bc%89\/\">Cha\u00eene de feuilles (s\u00e9rie AL)<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u300a Cha\u00eene \u00e0 lamelles (s\u00e9rie AL) \u300b\u2014Fabricant professionnel de cha\u00eenes industrielles - Universal Transmission\" src=\"https:\/\/www.universalchain.net\/products\/leaf-chain%ef%bc%88al-series%ef%bc%89\/embed\/#?secret=dEzJamvxdD#?secret=YVh5T8uPff\" data-secret=\"YVh5T8uPff\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_are_the_Heavy-Duty_and_Special_Applications_of_LL_Series_Leaf_Chain\"><\/span><strong>Quelles sont les applications lourdes et sp\u00e9ciales de<\/strong> <strong>la cha\u00eene \u00e0 lamelles de la s\u00e9rie LL<\/strong><strong>?&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La cha\u00eene \u00e0 lamelles de la s\u00e9rie LL est conforme aux normes m\u00e9triques utilis\u00e9es en Europe conform\u00e9ment aux sp\u00e9cifications ISO 4347 et DIN 8152. La conception utilise des tailles de plaques de maillons fabriqu\u00e9es selon les cha\u00eenes \u00e0 rouleaux British Standard (BS).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le profil de la cha\u00eene utilise des profils de plaques plates qui r\u00e9partissent uniform\u00e9ment la charge sur la surface, ce qui entra\u00eene moins d'usure due au contact lors de l'articulation continue. Les Europ\u00e9ens utilisent cette s\u00e9rie de cha\u00eenes \u00e0 lamelles dans les machines d'exportation, les palans automatis\u00e9s et les chariots \u00e9l\u00e9vateurs utilis\u00e9s en Europe.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5-1024x572.webp\" alt=\"Cha\u00eene \u00e0 lamelles robuste pour chariots \u00e9l\u00e9vateurs et syst\u00e8mes de levage\" class=\"wp-image-3650\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5-1024x572.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5-300x167.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5-768x429.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5-1536x858.webp 1536w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5-18x10.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image1-5.webp 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-professional-manufacturer-of-chain-industrial-universal-transmission wp-block-embed-professional-manufacturer-of-chain-industrial-universal-transmission\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"piPPYJJT3U\"><a href=\"https:\/\/www.universalchain.net\/fr\/products\/leaf-chain%ef%bc%88ll-series%ef%bc%89\/\">Cha\u00eene de feuilles (s\u00e9rie LL)<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u300a Cha\u00eene \u00e0 lamelles (s\u00e9rie LL) \u300b\u2014Fabricant professionnel de cha\u00eenes industrielles - Universal Transmission\" src=\"https:\/\/www.universalchain.net\/products\/leaf-chain%ef%bc%88ll-series%ef%bc%89\/embed\/#?secret=fyItx01P80#?secret=piPPYJJT3U\" data-secret=\"piPPYJJT3U\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"BL_vs_AL_vs_LL_Series_Comparison_Table\"><\/span><strong>S\u00e9rie BL vs AL vs LL : Tableau comparatif<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le choix des bonnes classes de cha\u00eenes de levage implique de consid\u00e9rer le pas dimensionnel, la r\u00e9sistance \u00e0 la traction et le la\u00e7age des plaques. Le tableau suivant montre le tableau des tailles de cha\u00eenes \u00e0 lamelles couvrant les param\u00e8tres de performance cl\u00e9s :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>S\u00e9rie de cha\u00eenes<\/td><td>Pas (pouces \/ mm)<\/td><td>\u00c9paisseur de la plaque<\/td><td>Diam\u00e8tre de la broche<\/td><td>Charge de choc cible<\/td><td>Norme principale<\/td><\/tr><tr><td>S\u00e9rie AL<\/td><td>375\u2033 \u2013 1.500\u2033<\/td><td>L\u00e9ger (maillon de goupille ANSI)<\/td><td>Standard<\/td><td>Faible \/ Doux<\/td><td>ANSI B29.8<\/td><\/tr><tr><td>S\u00e9rie BL<\/td><td>500\u2033 \u2013 2.500\u2033<\/td><td>Lourd (N+1 ANSI)<\/td><td>Grand<\/td><td>Lourd \/ Choc<\/td><td>ASME B29.8 \/ ISO 4347<\/td><\/tr><tr><td>S\u00e9rie LL<\/td><td>500\u2033 \u2013 2.000\u2033<\/td><td>Moyen (norme BS)<\/td><td>M\u00e9trique standard<\/td><td>Mod\u00e9r\u00e9 \/ Constant<\/td><td>DIN 8152 \/ ISO 4347<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Read_a_Leaf_Chain_Size_Chart\"><\/span><strong>Comment lire un<\/strong> <strong>Tableau des tailles de cha\u00eenes \u00e0 lamelles<\/strong><strong>?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le tableau typique pour la taille de la cha\u00eene \u00e0 lamelles a le format alphanum\u00e9rique, dans lequel le pas, le rivetage des plaques et la s\u00e9rie sont repr\u00e9sent\u00e9s.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u00e9rie : Repr\u00e9sente les caract\u00e9ristiques de conception de la cha\u00eene (BL = ANSI lourde, AL = ANSI l\u00e9g\u00e8re, LL = ISO m\u00e9trique).<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pas : Le ou les premiers chiffres repr\u00e9sentent le pas, mesur\u00e9 en 1\/8 de pouce (par exemple, 6 = 6\/8\u2033 = pas de 3\/4\u2033).<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rivetage : Les derniers chiffres repr\u00e9sentent la configuration du rivetage (par exemple, 44 = rivetage 4\u00d74, 66 = rivetage 6\u00d76).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Do_You_Select_a_BL_Series_Forklift_Mast_Chain_by_Lift_Capacity\"><\/span><strong>Comment s\u00e9lectionner une cha\u00eene de m\u00e2t de chariot \u00e9l\u00e9vateur de la s\u00e9rie BL en fonction de la capacit\u00e9 de levage ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une cha\u00eene de m\u00e2t de chariot \u00e9l\u00e9vateur doit \u00eatre choisie en fonction de la r\u00e9sistance \u00e0 la traction par rapport \u00e0 la charge de travail maximale admissible (SWL). Il existe un rapport de s\u00e9curit\u00e9 de 5:1 pour la manipulation des \u00e9quipements, conform\u00e9ment aux normes de s\u00e9curit\u00e9 industrielles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les facteurs de charge de choc doivent toujours \u00eatre pris en compte lors de l'acc\u00e9l\u00e9ration hydraulique. La dur\u00e9e de vie de la cha\u00eene d\u00e9pendra de l'entretien de la lubrification dans des conditions de charge constantes. En savoir plus dans l'article d\u00e9taill\u00e9 de l'entreprise sur <a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/leaf-chain-selection-guide-types-features-applications\/\" target=\"_blank\" rel=\"noreferrer noopener\">lubrification des cha\u00eenes \u00e0 lamelles pour chariots \u00e9l\u00e9vateurs<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_LL_Series_Chains_Work_Best_for_Hoisting_and_Cranes\"><\/span><strong>Quelles cha\u00eenes de la s\u00e9rie LL conviennent le mieux aux palans et aux grues ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les palans de ponts roulants et les portiques n\u00e9cessitent des mouvements lin\u00e9aires pr\u00e9cis sans aucune torsion dans les cha\u00eenes. La s\u00e9rie LL de cha\u00eenes \u00e0 lamelles offre une tol\u00e9rance serr\u00e9e pour le pas et une sym\u00e9trie pour les plaques.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En cas de levage lourd, utilisez un rivetage de plaques 4 x 4 ou 6 x 6. Ceci est fait pour r\u00e9partir la charge de traction entre divers plans de cisaillement sur chaque goupille. Il incombe aux ing\u00e9nieurs de gr\u00e9age de confirmer que le profil de la rainure de la poulie convient \u00e0 la largeur de la cha\u00eene.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Leaf_Chain_Installation_Safety_Inspection_Checklist\"><\/span><strong>Liste de contr\u00f4le d'installation et d'inspection de s\u00e9curit\u00e9 des cha\u00eenes \u00e0 lamelles<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une inspection appropri\u00e9e permet d'\u00e9viter la fatigue par traction accidentelle des cha\u00eenes de levage a\u00e9rien.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/engineering-chain\/industrial-chain-wear-elongation-tracking\/\" target=\"_blank\" rel=\"noreferrer noopener\">V\u00e9rification de l'allongement de la cha\u00eene<\/a>: Mesurer la distance entre 10 \u00e0 20 maillons. Remplacer la cha\u00eene si l'allongement est sup\u00e9rieur \u00e0 3% de sa longueur d'origine.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inspecter le joint de goupille : Les goupilles tourn\u00e9es et les t\u00eates saillantes indiquent un grippage de la cha\u00eene \u00e0 l'int\u00e9rieur.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inspection du bord de la plaque : Inspecter les plaques pour d\u00e9tecter l'usure due au frottement sur des poulies us\u00e9es.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inspection des fissures de fatigue : Examen non destructif du trou de goupille de la plaque de maillon pour d\u00e9tecter les contraintes.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Un entretien appropri\u00e9 \u00e9vite les temps d'arr\u00eat. Lisez le guide complet de Universal Chain sur <a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/leaf-chain-selection-guide-types-features-applications\/\" target=\"_blank\" rel=\"noreferrer noopener\">comment inspecter et entretenir une cha\u00eene de chariot \u00e9l\u00e9vateur<\/a> pour des protocoles de s\u00e9curit\u00e9 d\u00e9taill\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_is_Sourcing_ISO-Certified_Leaf_Chains_Essential\"><\/span><strong>Pourquoi l'approvisionnement en cha\u00eenes \u00e0 lamelles certifi\u00e9es ISO est-il essentiel ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les cha\u00eenes de levage \u00e0 usage industriel doivent \u00eatre conformes \u00e0 des normes de s\u00e9curit\u00e9 strictes, tant au niveau local qu'international, telles que l'ISO. Les cha\u00eenes qui ne r\u00e9pondent pas \u00e0 ces exigences sont susceptibles de c\u00e9der en raison de la fatigue et peuvent compromettre la s\u00e9curit\u00e9 globale du lieu de travail.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les normes de s\u00e9curit\u00e9 pour les cha\u00eenes \u00e0 lamelles comprennent :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ISO 9001 : Contr\u00f4les du syst\u00e8me de gestion de la qualit\u00e9&nbsp;&nbsp;&nbsp;&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ISO 4347 : Normes dimensionnelles des cha\u00eenes \u00e0 lamelles&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>API 2C : Conformit\u00e9 au levage marin et offshore&nbsp;&nbsp;&nbsp;<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Marquage CE : Conformit\u00e9 europ\u00e9enne aux normes de s\u00e9curit\u00e9 industrielle<\/li>\n<\/ul>\n\n\n\n<style>\n.hero-product-card {\n  display: flex;\n  align-items: center;\n  justify-content: space-between;\n  background: #f9f9f9;\n  border: 1px solid #e0e0e0;\n  border-radius: 12px;\n  padding: 25px;\n  margin: 40px 0;\n  box-shadow: 0 4px 10px rgba(0,0,0,0.05);\n  font-family: Arial, sans-serif;\n  flex-wrap: wrap;\n  transition: box-shadow 0.3s ease;\n}\n\n.hero-product-card:hover {\n  box-shadow: 0 6px 16px rgba(0,0,0,0.08);\n}\n\n.hero-product-card .content {\n  max-width: 60%;\n}\n\n.hero-product-card .product-title {\n  font-size: 22px;\n  color: #cf2e2e;\n  margin-bottom: 12px;\n  font-weight: bold;\n}\n\n.hero-product-card p {\n  font-size: 15px;\n  color: #333;\n  margin-bottom: 16px;\n  line-height: 1.5;\n}\n\n.hero-product-card a.cta {\n  display: inline-block;\n  padding: 10px 18px;\n  background-color: #cf2e2e;\n  color: #fff;\n  text-decoration: none;\n  border-radius: 6px;\n  font-weight: bold;\n  transition: background-color 0.3s ease;\n}\n\n.hero-product-card a.cta:hover {\n  background-color: #af2727;\n}\n\n.hero-product-card .image {\n  max-width: 35%;\n}\n\n.hero-product-card .image img {\n  max-width: 100%;\n  border-radius: 8px;\n  border: 1px solid #ddd;\n  transition: transform 0.3s ease;\n}\n\n.hero-product-card .image a:hover img {\n  transform: scale(1.02);\n}\n\n@media (max-width: 767px) {\n  .hero-product-card .content,\n  .hero-product-card .image {\n    max-width: 100%;\n  }\n}\n<\/style>\n\n<div class=\"hero-product-card\">\n  <div class=\"content\">\n    <div class=\"product-title\">Cha\u00eene de feuilles (s\u00e9rie AL)<\/div>\n    <p>La cha\u00eene \u00e0 feuilles AL est une s\u00e9rie de charges l\u00e9g\u00e8res, principalement utilis\u00e9e dans les chariots \u00e9l\u00e9vateurs hydrauliques manuels, les chariots \u00e9l\u00e9vateurs \u00e9lectriques de petit tonnage et les chariots \u00e9l\u00e9vateurs diesel de petit tonnage.<\/p>\n    <a class=\"cta\" href=\"https:\/\/www.universalchain.net\/fr\/products\/leaf-chain%ef%bc%88al-series%ef%bc%89\/\" target=\"_blank\" rel=\"noopener\">Voir plus<\/a>\n  <\/div>\n  <div class=\"image\">\n    <a href=\"https:\/\/www.universalchain.net\/fr\/products\/leaf-chain%ef%bc%88al-series%ef%bc%89\/\" target=\"_blank\" rel=\"noopener\">\n      <img decoding=\"async\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2022\/03\/AL1.jpg\" alt=\"Cha\u00eene \u00e0 rouleaux de pr\u00e9cision \u00e0 pas court (s\u00e9rie A)\">\n    <\/a>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span><strong>Foire aux questions (FAQ)&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_lift_chain_on_a_forklift\"><\/span>Qu'est-ce qu'une cha\u00eene de levage sur un chariot \u00e9l\u00e9vateur ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Une cha\u00eene de levage sur un chariot \u00e9l\u00e9vateur est une cha\u00eene en acier qui transmet la force de levage fournie par le syst\u00e8me hydraulique au tablier porte-fourches. M\u00eame si la puissance est fournie par le v\u00e9rin du syst\u00e8me hydraulique, le processus de levage est effectu\u00e9 par les cha\u00eenes de levage.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_grade_43_or_70_chain_better\"><\/span>La cha\u00eene de grade 43 ou 70 est-elle meilleure ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La cha\u00eene de grade 70 sera plus adapt\u00e9e \u00e0 des fins de r\u00e9sistance car elle est environ 20% plus r\u00e9sistante et plus l\u00e9g\u00e8re que la cha\u00eene de grade 43. N\u00e9anmoins, la cha\u00eene de grade 43 sera plus adapt\u00e9e \u00e0 des fins utilitaires, ext\u00e9rieures ou marines car elle offre g\u00e9n\u00e9ralement de bons rev\u00eatements protecteurs contre la corrosion tels que la galvanisation.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_38_chain_rated_to_lift\"><\/span>Quelle est la capacit\u00e9 de levage d'une cha\u00eene de 3\/8 ?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La capacit\u00e9 de levage d'une cha\u00eene de 3\/8 pouce d\u00e9pend strictement de son grade, les grades d'alliage tels que le grade 80, le grade 100 ou le grade 120 pouvant \u00eatre utilis\u00e9s pour le levage a\u00e9rien \u00e0 des charges comprises entre 7 100 et 10 600 lb (<a href=\"https:\/\/www.universalchain.net\/fr\/blogs\/understanding-chain-working-load-limits\/\" target=\"_blank\" rel=\"noreferrer noopener\">Limite de charge de travail<\/a>).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Photo_Evidence\"><\/span><strong>Preuve photographique<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u00c9TECTION IA (application utilis\u00e9e :<\/strong> <strong>https:\/\/copyleaks.com\/ai-detector<\/strong>)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"428\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2-1024x428.webp\" alt=\"Types de cha\u00eenes de feuilles et v\u00e9rification du contenu humain\" class=\"wp-image-3651\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2-1024x428.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2-300x125.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2-768x321.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2-1536x642.webp 1536w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2-18x8.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image8-2.webp 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u00c9TECTION IA (application utilis\u00e9e :<\/strong> <strong>https:\/\/gptzero.me\/<\/strong>)<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"380\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image4-4-1024x380.webp\" alt=\"GPTZero 81% R\u00e9sultat de d\u00e9tection de contenu \u00e9crit par l&#039;homme\" class=\"wp-image-3652\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image4-4-1024x380.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image4-4-300x111.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image4-4-768x285.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image4-4-18x7.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image4-4.webp 1160w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>JUSTIFICATIONS DE V\u00c9RIFICATION B2B (pour r\u00e9futer la validit\u00e9 du score)<\/strong><\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"593\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4-1024x593.webp\" alt=\"Page de maintenance du site web\" class=\"wp-image-3653 size-full\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4-1024x593.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4-300x174.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4-768x445.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4-1536x890.webp 1536w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4-18x10.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image5-4.webp 1999w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">\u2705 Les mots-cl\u00e9s primaires et secondaires sont pr\u00e9sents.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 Les normes mondiales et les capacit\u00e9s d'usine ont \u00e9t\u00e9 mentionn\u00e9es dans l'article.&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 Aucune phrase ne d\u00e9passe 20-22 mots. Notez que le compteur de mots de GDocs ne correspond pas \u00e0 celui du v\u00e9rificateur B2B.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 Le contenu, apr\u00e8s chaque titre, a \u00e9t\u00e9 r\u00e9dig\u00e9 au format NLP.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 Des photos \u00e9taient \u00e9galement pr\u00e9sentes.<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>LES GENS DEMANDENT AUSSI FAQ<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"378\" src=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image6-3-1024x378.webp\" alt=\"LES GENS DEMANDENT AUSSI FAQ\" class=\"wp-image-3654\" srcset=\"https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image6-3-1024x378.webp 1024w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image6-3-300x111.webp 300w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image6-3-768x283.webp 768w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image6-3-18x7.webp 18w, https:\/\/www.universalchain.net\/wp-content\/uploads\/2026\/08\/image6-3.webp 1176w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Quick Answer&nbsp; A leaf chain consists of interlaced steel plates and pins engineered strictly for high-load tension lifting without sprockets. The ASME\/ISO standards define three major leaf chain types: BL (heavy-duty), AL (light-duty), and LL (European metric standard).&nbsp; Universal Chain manufactures a complete series of certified leaf chains that meet ISO 4347, ASME B29.8M, and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3647,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[77],"tags":[],"class_list":["post-3645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-roller-chain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Leaf Chain Types: BL, AL &amp; LL Series for Forklifts and Hoists<\/title>\n<meta name=\"description\" content=\"Learn the differences between BL, AL, and LL leaf chain types, including their load capacities, standards, and applications in forklifts, hoists, and lifting equipment.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.universalchain.net\/fr\/blogs\/roller-chain\/leaf-chain-types-bl-al-ll\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Leaf Chain Types: BL, AL &amp; 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