{"id":6266,"date":"2026-09-05T03:29:00","date_gmt":"2026-09-05T03:29:00","guid":{"rendered":"https:\/\/forgesail.com\/?page_id=6266"},"modified":"2026-09-22T08:34:28","modified_gmt":"2026-09-22T08:34:28","slug":"series-bhda","status":"publish","type":"page","link":"https:\/\/forgesail.com\/ru\/products\/buffer-stops\/hydraulic-buffer\/series-bhda\/","title":{"rendered":"\u0441\u0435\u0440\u0438\u044f-BHDA"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6266\" class=\"elementor elementor-6266\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-62f0918 e-flex e-con-boxed e-con e-parent\" data-id=\"62f0918\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9e9c8aa elementor-widget elementor-widget-html\" data-id=\"9e9c8aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- ================================================================\n     FORGESAIL \u00b7 BHDA Adjustable \u00b7 \u9875\u9762\u5185\u5bb9\uff08\u5408\u5e76\u5757\uff09\n     \u539f 11 \u4e2a HTML \u5c0f\u5de5\u5177 \u2192 1 \u4e2a | CSS \u89c4\u5219 355 \u2192 163 \u6761\n     \u5df2\u505a\uff1a\u91cd\u590d\u5757\u53bb\u91cd \/ \u9010\u5c5e\u6027\u7ea7\u8054\u5408\u5e76 \/ \u9762\u5305\u5c51+\u516d\u7cfb\u5217\u5bfc\u822a \/ \u8868\u683c scope+aria-label \/\n           FAQ aria-expanded+aria-controls \/ FAQPage schema \/ \u4fee #products \u951a\u70b9\n     \u7528\u6cd5\uff1a\u8d34\u8fdb\u7b2c 1 \u4e2a HTML \u5c0f\u5de5\u5177\uff08\u9762\u5305\u5c51\u90a3\u4e2a\uff09\uff0c\u5220\u6389\u5176\u4f59 10 \u4e2a\uff08\u7b2c 3,4,5,6,7,8,9,10,11,12 \u4e2a\uff09\u3002\n     \u26a0 \u4fdd\u7559\u4e0d\u52a8\uff1a\u4fe1\u4efb\u6761(when you partner\u2026)\u3001fsrp \u76f8\u5173\u4ea7\u54c1\u6ed1\u5757\u3001LocalBusiness schema \u5757\u3002\n     ================================================================ -->\n<style>\n    .fsb.fsb-bhda .hero {\n        position: relative;\n        overflow: hidden;\n        display: flex;\n        align-items: center;\n        width: 100vw;\n        max-width: 100vw;\n        margin-left: calc(50% - 50vw);\n        margin-right: calc(50% - 50vw);\n        margin-top: -10px;\n        min-height: 520px;\n        color: #26333f !important;\n        background: radial-gradient(1000px 440px at 88% -10%, rgba(66,162,217,.18), transparent 62%),linear-gradient(92deg, rgba(255,255,255,.985) 0%, rgba(255,255,255,.96) 30%, rgba(255,255,255,.86) 56%, rgba(255,255,255,.62) 100%),url('https:\/\/forgesail.com\/wp-content\/uploads\/2026\/09\/Hydraulic-Buffer-BHDA-Adjustable-Air-Bag-Like-Heavy-Duty-banner-scaled.jpg') center\/cover no-repeat #fff;\n        padding: 74px 0 44px;\n        border-bottom: 1px solid var(--fsb-line)\n    }\n\n    .fsb.fsb-bhda .hero::after {\n        content: \"\";\n        position: absolute;\n        inset: 0;\n        pointer-events: none;\n        background-image: linear-gradient(rgba(4,51,132,.05) 1px,transparent 1px), linear-gradient(90deg,rgba(4,51,132,.05) 1px,transparent 1px);\n        background-size: 64px 64px;\n        mask-image: linear-gradient(to bottom right,#000,transparent 72%);\n        -webkit-mask-image: linear-gradient(to bottom right,#000,transparent 72%);\n    }\n\n    .fsb.fsb-bhda .hero .wrap {\n        position: relative;\n        z-index: 2;\n    }\n\n    .fsb.fsb-bhda .hero h1 {\n        color: #0f2f4f !important;\n        max-width: 19ch\n    }\n\n    .fsb.fsb-bhda .hero-sub {\n        font-size: 18px !important;\n        color: #3d4b58 !important;\n        max-width: 60ch\n    }\n\n    .fsb.fsb-bhda .specbar {\n        display: grid;\n        grid-template-columns: repeat(5,1fr);\n        gap: 1px;\n        background: rgba(4,51,132,.14);\n        border-radius: 10px;\n        overflow: hidden;\n        margin-top: 40px\n   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52px;\n        align-items: center;\n    }\n\n    .fsb.fsb-bhda .figure {\n        background: var(--fsb-white);\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius-card);\n        padding: 24px;\n    }\n\n    .fsb.fsb-bhda .figure figcaption {\n        font-size: 13px !important;\n        color: var(--fsb-muted) !important;\n        margin-top: 13px;\n        padding-top: 12px;\n        border-top: 1px solid var(--fsb-line);\n        line-height: 1.55 !important;\n    }\n\n    @media(max-width: 1024px) {\n        .fsb.fsb-bhda .split {\n            grid-template-columns:1fr;\n            gap: 34px;\n        }\n    }\n\n    .fsb.fsb-bhda .adv {\n        display: grid;\n        grid-template-columns: repeat(3,1fr);\n        gap: 22px;\n    }\n\n    .fsb.fsb-bhda .adv-item {\n        background: var(--fsb-white);\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius-card);\n        padding: 26px 24px;\n        transition: all .22s ease;\n    }\n\n    .fsb.fsb-bhda .adv-item:hover {\n        transform: translateY(-4px);\n        box-shadow: 0 16px 34px rgba(15,35,70,.09);\n        border-color: #c3d5ef;\n    }\n\n    .fsb.fsb-bhda .adv-item .n {\n        font-family: var(--fsb-font-head) !important;\n        font-size: 12px !important;\n        font-weight: 800 !important;\n        color: var(--fsb-primary-hover) !important;\n        letter-spacing: .1em !important;\n        display: block;\n        margin-bottom: 10px;\n    }\n\n    .fsb.fsb-bhda .adv-item h4 {\n        margin-bottom: 8px;\n    }\n\n    .fsb.fsb-bhda .adv-item p {\n        font-size: 15px !important;\n        margin: 0;\n    }\n\n    @media(max-width: 1024px) {\n        .fsb.fsb-bhda .adv {\n            grid-template-columns:1fr 1fr;\n        }\n    }\n\n    .fsb.fsb-bhda .filterbar {\n        display: flex;\n        flex-wrap: wrap;\n        align-items: center;\n        gap: 14px;\n        margin-bottom: 18px;\n    }\n\n    .fsb.fsb-bhda .filterbar input {\n        flex: 1;\n        min-width: 230px;\n        font-family: var(--fsb-font-body) !important;\n        font-size: 15px !important;\n        padding: 12px 16px;\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius);\n        background: var(--fsb-white);\n        color: var(--fsb-ink) !important;\n    }\n\n    .fsb.fsb-bhda .filterbar input:focus {\n        outline: none;\n        border-color: var(--fsb-primary-hover);\n    }\n\n    .fsb.fsb-bhda .filterbar .count {\n        font-size: 14px !important;\n        color: var(--fsb-muted) !important;\n        font-weight: 600 !important;\n        white-space: nowrap;\n    }\n\n    .fsb.fsb-bhda .table-scroll {\n        overflow-x: auto;\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius-card);\n        background: var(--fsb-white);\n    }\n\n    .fsb.fsb-bhda table.spec {\n        width: 100%;\n        border-collapse: collapse;\n        font-size: 15px !important;\n        min-width: 720px;\n    }\n\n    .fsb.fsb-bhda table.spec th {\n        background: var(--fsb-primary);\n        color: var(--fsb-white) !important;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 12.5px !important;\n        font-weight: 700 !important;\n        letter-spacing: .04em !important;\n        text-transform: uppercase !important;\n        text-align: left;\n        padding: 15px 17px;\n        white-space: nowrap;\n    }\n\n    .fsb.fsb-bhda table.spec td {\n        padding: 13px 17px;\n        border-bottom: 1px solid var(--fsb-line);\n        white-space: nowrap;\n    }\n\n    .fsb.fsb-bhda table.spec tbody tr:nth-child(even) {\n        background: #fafbfd;\n    }\n\n    .fsb.fsb-bhda table.spec tbody tr:hover {\n        background: #eef4fc;\n    }\n\n    .fsb.fsb-bhda table.spec td:first-child {\n        font-family: var(--fsb-font-head) !important;\n        font-weight: 700 !important;\n        color: var(--fsb-ink) !important;\n    }\n\n    .fsb.fsb-bhda table.spec .num {\n        font-variant-numeric: tabular-nums !important;\n    }\n\n    .fsb.fsb-bhda table.spec tbody tr.hide {\n        display: none;\n    }\n\n    .fsb.fsb-bhda .empty-row td {\n        text-align: center;\n        color: var(--fsb-muted) !important;\n        padding: 26px;\n    }\n\n    .fsb.fsb-bhda .fsb .table-scroll {\n        position: relative;\n        -webkit-overflow-scrolling: touch;\n    }\n\n    .fsb.fsb-bhda .fsb .table-scroll::-webkit-scrollbar {\n        height: 9px;\n    }\n\n    .fsb.fsb-bhda .fsb .table-scroll::-webkit-scrollbar-track {\n        background: #eef2f7;\n        border-radius: 99px;\n    }\n\n    .fsb.fsb-bhda .fsb .table-scroll::-webkit-scrollbar-thumb {\n        background: #b8c6dc;\n        border-radius: 99px;\n    }\n\n    .fsb.fsb-bhda .fsb .table-scroll::-webkit-scrollbar-thumb:hover {\n        background: var(--fsb-primary-hover);\n    }\n\n    .fsb.fsb-bhda .fsb table.spec td:first-child, .fsb.fsb-bhda .fsb table.spec th:first-child {\n        position: sticky;\n        left: 0;\n        z-index: 2;\n        background: var(--fsb-white);\n        box-shadow: 1px 0 0 var(--fsb-line);\n    }\n\n    .fsb.fsb-bhda .fsb table.spec th:first-child {\n        background: var(--fsb-primary);\n        color: var(--fsb-white) !important;\n        z-index: 3;\n        box-shadow: none;\n    }\n\n    .fsb.fsb-bhda .fsb table.spec tbody tr:nth-child(even) td:first-child {\n        background: #fafbfd;\n    }\n\n    .fsb.fsb-bhda .fsb table.spec tbody tr:hover td:first-child {\n        background: #eef4fc;\n    }\n\n    .fsb.fsb-bhda .fsb table.spec .empty-row td:first-child {\n        position: static;\n        box-shadow: none;\n    }\n\n    .fsb.fsb-bhda .fsb table.spec td:nth-child(2) {\n        font-weight: 700 !important;\n        color: var(--fsb-ink) !important;\n    }\n\n    .fsb.fsb-bhda .fsb table.spec td, .fsb.fsb-bhda .fsb table.spec th {\n        font-variant-numeric: tabular-nums !important;\n    }\n\n    .fsb.fsb-bhda .fsb .scroll-hint {\n        display: none;\n        font-size: 12.5px !important;\n        color: var(--fsb-muted) !important;\n        margin-top: 9px;\n    }\n\n    @media(max-width: 860px) {\n        .fsb.fsb-bhda .fsb .scroll-hint {\n            display:block;\n        }\n    }\n\n    .fsb.fsb-bhda .section-alt {\n        background: var(--fsb-surface);\n    }\n\n    .fsb.fsb-bhda .notebox {\n        border-left: 4px solid var(--fsb-primary);\n        background: #f4f8fd;\n        border-radius: 0 var(--fsb-radius-card) var(--fsb-radius-card) 0;\n        padding: 22px 26px;\n        margin: 26px 0;\n    }\n\n    .fsb.fsb-bhda .notebox.danger {\n        border-left-color: #c0392b;\n        background: #fdf1ef;\n    }\n\n    .fsb.fsb-bhda .notebox h4 {\n        margin-bottom: 8px;\n        font-size: 16px !important;\n    }\n\n    .fsb.fsb-bhda .notebox p {\n        font-size: 15.5px !important;\n        margin: 0 0 .7em;\n    }\n\n    .fsb.fsb-bhda .notebox p:last-child {\n        margin: 0;\n    }\n\n    .fsb.fsb-bhda .notebox ul {\n        margin: 0;\n        padding-left: 20px;\n        font-size: 15.5px !important;\n    }\n\n    .fsb.fsb-bhda .notebox li {\n        margin-bottom: 7px;\n    }\n\n    .fsb.fsb-bhda .osteps {\n        counter-reset: os;\n        list-style: none;\n        padding: 0;\n        margin: 0;\n    }\n\n    .fsb.fsb-bhda .osteps li {\n        counter-increment: os;\n        position: relative;\n        padding-left: 52px;\n        margin-bottom: 20px;\n    }\n\n    .fsb.fsb-bhda .osteps li::before {\n        content: counter(os);\n        position: absolute;\n        left: 0;\n        top: 0;\n        width: 34px;\n        height: 34px;\n        border-radius: 9px;\n        background: var(--fsb-primary);\n        color: var(--fsb-white) !important;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 15px !important;\n        font-weight: 800 !important;\n        display: flex;\n        align-items: center;\n        justify-content: center;\n    }\n\n    .fsb.fsb-bhda .osteps b {\n        display: block;\n        font-family: var(--fsb-font-head) !important;\n        color: var(--fsb-ink) !important;\n        font-size: 16px !important;\n        margin-bottom: 2px;\n    }\n\n    .fsb.fsb-bhda .osteps span {\n        font-size: 15.5px !important;\n    }\n\n    .fsb.fsb-bhda .acc {\n        display: grid;\n        grid-template-columns: repeat(4,1fr);\n        gap: 16px;\n    }\n\n    .fsb.fsb-bhda .acc-item {\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius-card);\n        padding: 22px 20px;\n        background: var(--fsb-white);\n    }\n\n    .fsb.fsb-bhda .acc-item b {\n        display: block;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 15px !important;\n        color: var(--fsb-primary) !important;\n        margin-bottom: 6px;\n    }\n\n    .fsb.fsb-bhda .acc-item span {\n        font-size: 14.5px !important;\n        color: var(--fsb-body) !important;\n    }\n\n    .fsb.fsb-bhda .mount {\n        display: grid;\n        grid-template-columns: repeat(5,1fr);\n        gap: 16px;\n        margin-top: 26px;\n    }\n\n    .fsb.fsb-bhda .mount-item {\n        text-align: center;\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius-card);\n        padding: 18px 12px;\n        background: var(--fsb-white);\n    }\n\n    .fsb.fsb-bhda .mount-item svg {\n        margin: 0 auto 12px;\n    }\n\n    .fsb.fsb-bhda .mount-item b {\n        display: block;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 14px !important;\n        color: var(--fsb-ink) !important;\n    }\n\n    .fsb.fsb-bhda .mount-item span {\n        font-size: 13px !important;\n        color: var(--fsb-muted) !important;\n    }\n\n    @media(max-width: 1024px) {\n        .fsb.fsb-bhda .acc {\n            grid-template-columns:1fr 1fr;\n        }\n\n        .fsb.fsb-bhda .mount {\n            grid-template-columns: repeat(3,1fr);\n        }\n    }\n\n    .fsb.fsb-bhda .dodont {\n        display: grid;\n        grid-template-columns: 1fr 1fr;\n        gap: 0;\n        border: 1px solid var(--fsb-line);\n        border-radius: var(--fsb-radius-card);\n        overflow: hidden;\n        background: var(--fsb-white);\n    }\n\n    .fsb.fsb-bhda .dd-col {\n        padding: 28px 28px 24px;\n    }\n\n    .fsb.fsb-bhda .dd-col+.dd-col {\n        border-left: 1px solid var(--fsb-line);\n    }\n\n    .fsb.fsb-bhda .dd-head {\n        font-family: var(--fsb-font-head) !important;\n        font-size: 15px !important;\n        font-weight: 800 !important;\n        text-transform: uppercase !important;\n        letter-spacing: .05em !important;\n        padding-bottom: 13px;\n        margin-bottom: 16px;\n        border-bottom: 2px solid var(--fsb-line);\n        display: flex;\n        align-items: center;\n        gap: 10px;\n    }\n\n    .fsb.fsb-bhda .dd-no .dd-head {\n        color: #c0392b !important;\n        border-color: #f4d4d0;\n    }\n\n    .fsb.fsb-bhda .dd-yes .dd-head {\n        color: #1d7a44 !important;\n        border-color: #cfe9db;\n    }\n\n    .fsb.fsb-bhda .dd-list {\n        list-style: none;\n        padding: 0;\n        margin: 0;\n        font-size: 15px !important;\n    }\n\n    .fsb.fsb-bhda .dd-list li {\n        position: relative;\n        padding-left: 30px;\n        margin-bottom: 14px;\n        line-height: 1.6 !important;\n    }\n\n    .fsb.fsb-bhda .dd-list li:last-child {\n        margin-bottom: 0;\n    }\n\n    .fsb.fsb-bhda .dd-no .dd-list li::before {\n        content: \"\\2715\";\n        position: absolute;\n        left: 0;\n        top: 1px;\n        color: #c0392b !important;\n        font-weight: 800 !important;\n        width: 20px;\n        height: 20px;\n        border-radius: 50%;\n        background: #fdecea;\n        display: flex;\n        align-items: center;\n        justify-content: center;\n        font-size: 10px !important;\n    }\n\n    .fsb.fsb-bhda .dd-yes .dd-list li::before {\n        content: \"\\2713\";\n        position: absolute;\n        left: 0;\n        top: 1px;\n        color: #1d7a44 !important;\n        font-weight: 800 !important;\n        width: 20px;\n        height: 20px;\n        border-radius: 50%;\n        background: #e6f6ec;\n        display: flex;\n        align-items: center;\n        justify-content: center;\n        font-size: 11px !important;\n    }\n\n    @media(max-width: 680px) {\n        .fsb.fsb-bhda .adv, .fsb.fsb-bhda .acc, .fsb.fsb-bhda .dodont, .fsb.fsb-bhda .mount, .fsb.fsb-bhda .rel {\n            grid-template-columns:1fr;\n        }\n\n        .fsb.fsb-bhda .dd-col+.dd-col {\n            border-left: 0;\n            border-top: 1px solid var(--fsb-line);\n        }\n    }\n\n    .fsb.fsb-bhda .eyebrow {\n        display: inline-block;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 12px !important;\n        font-weight: 800 !important;\n        letter-spacing: .14em !important;\n        text-transform: uppercase !important;\n        color: var(--fsb-primary) !important;\n        background: #eaf1fb;\n        padding: 6px 14px;\n        border-radius: var(--fsb-radius);\n        margin-bottom: 18px;\n    }\n\n    .fsb.fsb-bhda .eyebrow.on-dark {\n        background: transparent !important;\n        color: #0a3281 !important;\n        border: 1px solid rgba(10,50,129,.35)\n    }\n\n    .fsb.fsb-bhda .btn-light {\n        background: #1668b3;\n        border-color: #1668b3;\n        color: #fff !important\n    }\n\n    .fsb.fsb-bhda .btn-light:hover {\n        background: #0d4c86;\n        border-color: #0d4c86;\n        color: #fff !important;\n        transform: translateY(-2px)\n    }\n\n    .fsb.fsb-bhda .btn-ghost {\n        background: transparent;\n        color: #0a3281 !important;\n        border-color: rgba(10,50,129,.45)\n    }\n\n    .fsb.fsb-bhda .btn-ghost:hover {\n        background: #f0f6fd;\n        border-color: #0a3281;\n        color: #0a3281 !important;\n        transform: translateY(-2px)\n    }\n\n    .fsb.fsb-bhda .params {\n        display: flex;\n        flex-wrap: wrap;\n        gap: 12px;\n        margin: 26px 0 32px;\n        list-style: none;\n        padding: 0;\n    }\n\n    .fsb.fsb-bhda .params li {\n        font-family: var(--fsb-font-head) !important;\n        font-size: 14.5px !important;\n        font-weight: 700 !important;\n        background: rgba(255,255,255,.12);\n        border: 1px solid rgba(255,255,255,.28);\n        padding: 11px 20px;\n        border-radius: var(--fsb-radius);\n        color: var(--fsb-white) !important;\n    }\n\n    .fsb.fsb-bhda .params li em {\n        font-style: normal !important;\n        font-weight: 500 !important;\n        opacity: .78;\n        font-size: 13px !important;\n    }\n\n    .fsb.fsb-bhda .sizing {\n        background: linear-gradient(118deg,#060097 0%,#043384 55%,#04214f 100%);\n        color: var(--fsb-white) !important;\n        position: relative;\n        overflow: hidden;\n    }\n\n    .fsb.fsb-bhda .sizing::after {\n        content: \"\";\n        position: absolute;\n        inset: 0;\n        pointer-events: none;\n        background: radial-gradient(720px 320px at 92% 8%,rgba(97,206,112,.2),transparent 60%);\n    }\n\n    .fsb.fsb-bhda .sizing .wrap {\n        position: relative;\n        z-index: 2;\n    }\n\n    .fsb.fsb-bhda .sizing h2 {\n        color: var(--fsb-white) !important;\n    }\n\n    .fsb.fsb-bhda .sizing .lede {\n        color: rgba(255,255,255,.88) !important;\n    }\n\n    .fsb, .fsb *, .fsb *::before, .fsb *::after {\n        box-sizing: border-box;\n    }\n\n    .fsb {\n        --fsb-brand: #060097;\n        --fsb-brand-deep: #032a5e;\n        --fsb-primary: #043384;\n        --fsb-primary-hover: #42A2D9;\n        --fsb-accent: #61CE70;\n        --fsb-ink: #1e293b;\n        --fsb-body: #46536a;\n        --fsb-muted: #67768e;\n        --fsb-line: #e2e8f0;\n        \/* \u4f18\u5316\u6295\u5f71\u548c\u5361\u7247\u95f4\u8ddd *\/\n        --fsb-card-shadow: 0 4px 18px rgba(0, 24, 60, 0.05);\n        --fsb-card-shadow-open: 0 8px 32px rgba(4, 51, 132, 0.1);\n        --fsb-card-gap: 16px;\n        --fsb-surface: #F2F5F7;\n        --fsb-surface-alt: #f9f6fe;\n        --fsb-gold: #ffcd57;\n        --fsb-white: #ffffff;\n        --fsb-font-head: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans\u2011serif;\n        --fsb-font-body: 'Inter', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans\u2011serif;\n        --fsb-container: 1140px;\n        --fsb-radius: 2px;\n        --fsb-radius-card: 12px;\n        margin: 0;\n        font-family: var(--fsb-font-body);\n        font-size: 17px;\n        line-height: 1.75;\n        color: var(--fsb-body);\n        background: var(--fsb-white);\n        \/* \u6574\u4f53\u6539\u4e3a\u7eaf\u767d\u5e95 *\/\n        -webkit-font-smoothing: antialiased;\n    }\n\n    .fsb img, .fsb svg {\n        max-width: 100%;\n        height: auto;\n        display: block;\n    }\n\n    .fsb a {\n        color: var(--fsb-primary);\n        text-decoration: none;\n        transition: color .2s ease;\n    }\n\n    .fsb a:hover {\n        color: var(--fsb-primary-hover);\n    }\n\n    .fsb h1, .fsb h2, .fsb h3, .fsb h4 {\n        font-family: var(--fsb-font-head);\n        color: var(--fsb-ink);\n        margin: 0 0 .6em;\n        line-height: 1.2;\n        font-weight: 700;\n        letter-spacing: -.01em;\n    }\n\n    .fsb h1 {\n        font-size: clamp(30px, 4.2vw, 52px);\n        font-weight: 800;\n    }\n\n    .fsb h2 {\n        font-size: clamp(26px, 3.1vw, 40px);\n        margin-bottom: 40px;\n    }\n\n    .fsb h3 {\n        font-size: clamp(19px, 1.7vw, 23px);\n        font-weight: 700;\n    }\n\n    .fsb h4 {\n        font-size: 17px;\n        font-weight: 700;\n    }\n\n    .fsb p {\n        margin: 0 0 1.15em;\n    }\n\n    .fsb p:last-child {\n        margin-bottom: 0;\n    }\n\n    .fsb .wrap {\n        max-width: var(--fsb-container);\n        margin: 0 auto;\n        padding: 0 40px;\n    }\n\n    .fsb section {\n        padding: 80px 0;\n    }\n\n    .fsb .section-alt {\n        background: var(--fsb-white);\n    }\n\n    .fsb .eyebrow {\n        display: inline-block;\n        font-family: var(--fsb-font-head);\n        font-size: 12px;\n        font-weight: 800;\n        letter-spacing: .14em;\n        text-transform: uppercase;\n        color: var(--fsb-primary);\n        background: #eaf1fb;\n        padding: 6px 14px;\n        border-radius: var(--fsb-radius);\n        margin-bottom: 18px;\n    }\n\n    .fsb .faq {\n        max-width: 900px;\n        margin: 0 auto;\n        border: 0;\n        \/* \u79fb\u9664\u539f\u672c\u9876\u90e8\u8fb9\u6846 *\/\n        display: flex;\n        flex-direction: column;\n        gap: var(--fsb-card-gap);\n    }\n\n    .fsb .faq-item {\n        background: var(--fsb-white);\n        border: 1px solid rgba(226, 232, 240, 0.5);\n        \/* \u67d4\u548c\u7684\u8fb9\u6846 *\/\n        border-radius: var(--fsb-radius-card);\n        \/* \u7edf\u4e00\u5706\u89d2 *\/\n        box-shadow: var(--fsb-card-shadow);\n        \/* \u5361\u7247\u6295\u5f71 *\/\n        transition: box-shadow .34s ease, border-color .34s ease;\n        overflow: hidden;\n    }\n\n    .fsb .faq-item.open {\n        box-shadow: var(--fsb-card-shadow-open);\n        border-color: rgba(4, 51, 132, 0.1);\n        border-left: 4px solid var(--fsb-primary);\n    }\n\n    .fsb .faq-q {\n        width: 100%;\n        text-align: left;\n        background: none;\n        border: 0;\n        cursor: pointer;\n        font-family: var(--fsb-font-head);\n        font-size: 18px;\n        \/* \u5b57\u4f53\u52a0\u5927 *\/\n        font-weight: 700;\n        color: var(--fsb-ink);\n        padding: 24px 72px 24px 28px;\n        \/* \u589e\u52a0 padding *\/\n        position: relative;\n        line-height: 1.45;\n        transition: color .26s ease;\n    }\n\n    .fsb .faq-q:hover {\n        color: var(--fsb-primary);\n    }\n\n    .fsb .faq-q::after {\n        content: \"\";\n        position: absolute;\n        right: 24px;\n        top: 50%;\n        width: 36px;\n        \/* \u52a0\u5927\u56fe\u6807\u80cc\u666f\u8303\u56f4 *\/\n        height: 36px;\n        background: rgba(226, 232, 240, 0.4);\n        \/* \u7070\u8272\u56fe\u6807\u80cc\u666f *\/\n        border-radius: 50%;\n        \/* \u5706\u5f62\u56fe\u6807\u80cc\u666f *\/\n        transform: translateY(-50%) rotate(0deg);\n        \/* \u65cb\u8f6c\u4e2d\u5fc3\u4f18\u5316 *\/\n        transition: transform .26s ease, background .26s ease;\n        \/* \u91cd\u65b0\u4f7f\u7528 CSS \u7ed8\u5236\u66f4\u5927\u4e0b\u7bad\u5934 *\/\n        background-image: url(\"data:image\/svg+xml;utf8,<svg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 24 24' fill='none' stroke='%23043384' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'\/><\/svg>\");\n        background-repeat: no-repeat;\n        background-position: center;\n        background-size: 18px;\n    }\n\n    .fsb .faq-item.open .faq-q {\n        color: var(--fsb-primary);\n        padding-bottom: 12px;\n    }\n\n    .fsb .faq-item.open .faq-q::after {\n        transform: translateY(-50%) rotate(180deg);\n        \/* 180\u5ea6\u7ffb\u8f6c *\/\n        background-color: #eaf1fb;\n    }\n\n    .fsb .faq-a {\n        max-height: 0;\n        overflow: hidden;\n        transition: max-height .34s ease-out;\n    }\n\n    .fsb .faq-a-inner {\n        padding: 0 72px 28px 28px;\n        \/* \u4f7f\u6587\u5b57\u5de6\u53f3\u548c\u95ee\u9898\u5bf9\u9f50 *\/\n        font-size: 16px;\n        line-height: 1.7;\n        color: var(--fsb-body);\n    }\n\n    @media(max-width: 1024px) {\n        .fsb .faq {\n            max-width:100%;\n        }\n    }\n\n    @media(max-width: 680px) {\n        .fsb .wrap {\n            padding:0 24px;\n        }\n\n        .fsb section {\n            padding: 54px 0;\n        }\n\n        .fsb .eyebrow {\n            margin-bottom: 12px;\n        }\n\n        .fsb h2 {\n            margin-bottom: 28px;\n        }\n\n        .fsb .faq {\n            gap: 12px;\n        }\n\n        .fsb .faq-q {\n            font-size: 17px;\n            padding: 18px 60px 18px 20px;\n        }\n\n        .fsb .faq-q::after {\n            width: 32px;\n            height: 32px;\n            right: 18px;\n            background-size: 16px;\n        }\n\n        .fsb .faq-a-inner {\n            padding: 0 20px 20px 20px;\n        }\n    }\n\n    .fsb.fsb-bhda, .fsb.fsb-bhda *, .fsb.fsb-bhda *::before, .fsb.fsb-bhda *::after {\n        box-sizing: border-box;\n    }\n\n    .fsb.fsb-bhda {\n        --fsb-brand: #060097;\n        --fsb-primary: #043384;\n        --fsb-primary-hover: #42A2D9;\n        --fsb-accent: #61CE70;\n        --fsb-ink: #1e293b;\n        --fsb-body: #46536a;\n        --fsb-muted: #67768e;\n        --fsb-line: #e2e8f0;\n        --fsb-surface: #F2F5F7;\n        --fsb-surface-alt: #f9f6fe;\n        --fsb-gold: #ffcd57;\n        --fsb-white: #fff;\n        --fsb-font-head: 'Plus Jakarta Sans','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;\n        --fsb-font-body: 'Inter','Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;\n        --fsb-container: 1140px;\n        --fsb-radius: 2px;\n        --fsb-radius-card: 12px;\n        margin: 0;\n        font-family: var(--fsb-font-body) !important;\n        font-size: 17px !important;\n        line-height: 1.75 !important;\n        color: var(--fsb-body) !important;\n        background: var(--fsb-white);\n        -webkit-font-smoothing: antialiased;\n    }\n\n    .fsb.fsb-bhda img, .fsb.fsb-bhda svg {\n        max-width: 100%;\n        height: auto;\n        display: block;\n    }\n\n    .fsb.fsb-bhda a {\n        color: var(--fsb-primary) !important;\n        text-decoration: none;\n        transition: color .2s ease;\n    }\n\n    .fsb.fsb-bhda a:hover {\n        color: var(--fsb-primary-hover) !important;\n    }\n\n    .fsb.fsb-bhda h1, .fsb.fsb-bhda h2, .fsb.fsb-bhda h3, .fsb.fsb-bhda h4 {\n        font-family: var(--fsb-font-head) !important;\n        color: var(--fsb-ink) !important;\n        margin: 0 0 .6em;\n        line-height: 1.2 !important;\n        font-weight: 700 !important;\n        letter-spacing: -.01em !important;\n    }\n\n    .fsb.fsb-bhda h1 {\n        font-size: clamp(28px,3.6vw,46px) !important;\n        font-weight: 800 !important;\n    }\n\n    .fsb.fsb-bhda h2 {\n        font-size: clamp(25px,2.9vw,38px) !important;\n    }\n\n    .fsb.fsb-bhda h3 {\n        font-size: clamp(19px,1.6vw,22px) !important;\n    }\n\n    .fsb.fsb-bhda h4 {\n        font-size: 16.5px !important;\n    }\n\n    .fsb.fsb-bhda p {\n        margin: 0 0 1.15em;\n    }\n\n    .fsb.fsb-bhda p:last-child {\n        margin-bottom: 0;\n    }\n\n    .fsb.fsb-bhda .wrap {\n        max-width: var(--fsb-container);\n        margin: 0 auto;\n        padding: 0 40px;\n    }\n\n    .fsb.fsb-bhda section {\n        padding: 70px 0;\n    }\n\n    .fsb.fsb-bhda .lede {\n        font-size: 18.5px !important;\n        color: var(--fsb-body) !important;\n        max-width: 860px;\n        margin: 0 0 36px;\n    }\n\n    .fsb.fsb-bhda .btn {\n        display: inline-flex;\n        align-items: center;\n        justify-content: center;\n        gap: 9px;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 14px !important;\n        font-weight: 800 !important;\n        letter-spacing: .06em !important;\n        text-transform: uppercase !important;\n        padding: 15px 30px;\n        border-radius: var(--fsb-radius);\n        border: 2px solid transparent;\n        cursor: pointer;\n        transition: all .22s ease;\n        text-align: center;\n    }\n\n    .fsb.fsb-bhda .btn-primary {\n        background: var(--fsb-primary);\n        color: var(--fsb-white) !important;\n        border-color: var(--fsb-primary);\n    }\n\n    .fsb.fsb-bhda .btn-primary:hover {\n        background: var(--fsb-brand);\n        border-color: var(--fsb-brand);\n        color: var(--fsb-white) !important;\n        transform: translateY(-2px);\n        box-shadow: 0 10px 22px rgba(4,51,132,.28);\n    }\n\n    .fsb.fsb-bhda .btn-outline {\n        background: transparent;\n        color: var(--fsb-primary) !important;\n        border-color: var(--fsb-primary);\n    }\n\n    .fsb.fsb-bhda .btn-outline:hover {\n        background: var(--fsb-primary);\n        color: var(--fsb-white) !important;\n        transform: translateY(-2px);\n    }\n\n    .fsb.fsb-bhda .btn-row {\n        display: flex;\n        flex-wrap: wrap;\n        gap: 14px;\n        margin-top: 28px;\n    }\n\n    .fsb.fsb-bhda .final-cta {\n        background: var(--fsb-surface);\n        text-align: center;\n    }\n\n    .fsb.fsb-bhda .final-cta .lede {\n        margin: 0 auto 32px;\n    }\n\n    @media(max-width: 680px) {\n        .fsb.fsb-bhda .wrap {\n            padding:0 20px;\n        }\n\n        .fsb.fsb-bhda section {\n            padding: 52px 0;\n        }\n\n        .fsb.fsb-bhda .btn {\n            width: 100%;\n        }\n\n        .fsb.fsb-bhda .btn-row {\n            flex-direction: column;\n        }\n    }\n\n    \/* ===== \u56fe\u6587\u589e\u5f3a\uff08\u672c\u6b21\u65b0\u589e\uff09\uff1aOverview \u56fe\u6587\u4e24\u680f + Model Selection \u5de5\u7a0b\u56fe ===== *\/\n    .fsb.fsb-bhda .ov-split {\n        display: grid;\n        grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr);\n        gap: 48px;\n        align-items: start\n    }\n\n    .fsb.fsb-bhda .ov-split .lede {\n        margin: 0\n    }\n\n    .fsb.fsb-bhda .ov-figure {\n        margin: 0;\n        width: 100%;\n        max-width: 520px;\n        justify-self: end\n    }\n\n    .fsb.fsb-bhda .ov-figure img {\n        display: block;\n        width: 100%;\n        height: auto;\n        border: 1px solid var(--fsb-line);\n        border-radius: 14px;\n        background: #fff;\n        box-shadow: 0 10px 30px rgba(15,35,70,.07)\n    }\n\n    .fsb.fsb-bhda .ms-figure {\n        margin: 6px 0 22px\n    }\n\n    .fsb.fsb-bhda .ms-figure img {\n        display: block;\n        width: 100%;\n        height: auto;\n        border: 1px solid var(--fsb-line);\n        border-radius: 14px;\n        background: #fff\n    }\n\n    @media(max-width: 900px) {\n        .fsb.fsb-bhda .ov-split {\n            grid-template-columns:1fr;\n            gap: 26px\n        }\n\n        .fsb.fsb-bhda .ov-figure {\n            max-width: 560px;\n            justify-self: center\n        }\n    }\n<\/style>\n<style>\n    .fsb-crumbs {\n        padding: 16px 0 18px;\n        background: var(--fsb-white);\n        border-bottom: 1px solid var(--fsb-line)\n    }\n\n    .fsb-crumbs .crmb {\n        display: flex;\n        flex-wrap: wrap;\n        align-items: center;\n        gap: 8px;\n        font-size: 13px;\n        color: var(--fsb-muted)\n    }\n\n    .fsb-crumbs .crmb a {\n        color: var(--fsb-primary);\n        text-decoration: none\n    }\n\n    .fsb-crumbs .crmb a:hover {\n        text-decoration: underline\n    }\n\n    .fsb-crumbs .crmb .sep {\n        color: #c3ccd8\n    }\n\n    .fsb-crumbs .crmb .cur {\n        color: var(--fsb-ink);\n        font-weight: 600\n    }\n\n    .fsb-crumbs .ser-nav {\n        display: flex;\n        flex-wrap: wrap;\n        align-items: center;\n        gap: 8px;\n        margin-top: 12px\n    }\n\n    .fsb-crumbs .sn-title {\n        font-size: 11.5px;\n        font-weight: 700;\n        letter-spacing: .12em;\n        text-transform: uppercase;\n        color: var(--fsb-muted);\n        margin-right: 2px\n    }\n\n    .fsb-crumbs .chip {\n        display: inline-flex;\n        align-items: baseline;\n        gap: 6px;\n        padding: 7px 14px;\n        border: 1px solid var(--fsb-line);\n        border-radius: 999px;\n        background: var(--fsb-white);\n        color: var(--fsb-body);\n        text-decoration: none;\n        font-size: 13px;\n        line-height: 1.2;\n        transition: border-color .18s,background .18s\n    }\n\n    .fsb-crumbs .chip b {\n        font-weight: 800;\n        color: var(--fsb-primary);\n        letter-spacing: .02em\n    }\n\n    .fsb-crumbs .chip:hover {\n        border-color: var(--fsb-primary);\n        background: #f2f7fd\n    }\n\n    .fsb-crumbs .chip.is-cur {\n        background: var(--fsb-primary);\n        border-color: var(--fsb-primary);\n        color: #fff\n    }\n\n    .fsb-crumbs .chip.is-cur b {\n        color: #fff\n    }\n\n    @media(max-width: 680px) {\n        .fsb-crumbs {\n            padding:12px 0 14px\n        }\n\n        .fsb-crumbs .chip {\n            font-size: 12px;\n            padding: 6px 11px\n        }\n    }\n\n    \/* ===== \u9002\u914d\u4fee\u6b63\uff08\u672c\u6b21\u65b0\u589e\uff09=====\n   \u2460 html overflow-x:clip \u2014 \u5168\u5bbd hero \u7528 100vw\uff0cWindows \u7ecf\u5178\u6eda\u52a8\u6761\u4f1a\u8ba9 100vw \u6bd4\u5185\u5bb9\u533a\u5bbd\u7ea6 15px\n      \u800c\u6324\u51fa\u6a2a\u5411\u6eda\u52a8\u6761\uff1b\u7528 clip\uff08\u975e hidden\uff09\u88c1\u6389\uff0c\u4e0d\u751f\u6210\u6eda\u52a8\u5bb9\u5668\u3001\u4e0d\u5f71\u54cd sticky \u83dc\u5355\u5934\u3002\n   \u2461 \u2264680px\uff1ahero \u4e0d\u518d\u5360\u6ee1\u6574\u5c4f\uff0c\u906e\u7f69\u52a0\u539a + \u5e95\u56fe\u53f3\u79fb\uff0c\u907f\u514d\u6a2a\u5e45\u5728\u7a84\u5c4f\u88ab cover \u88c1\u5230\u53ea\u5269\u4e2d\u95f4\u4e00\u5c0f\u6761\u3002 *\/\n    html {\n        overflow-x: clip\n    }\n\n    @media(max-width: 680px) {\n        .fsb.fsb-bhda .hero {\n            min-height:auto;\n            padding: 52px 0 34px;\n            background: linear-gradient(180deg,rgba(255,255,255,.965) 0%,rgba(255,255,255,.94) 60%,rgba(255,255,255,.90) 100%),url('https:\/\/forgesail.com\/wp-content\/uploads\/2026\/09\/Hydraulic-Buffer-BHDA-Adjustable-Air-Bag-Like-Heavy-Duty-banner-scaled.jpg') 78% center\/cover no-repeat #fff\n        }\n    }\n\n    \/* \u624b\u673a\u7aef specbar \u6536\u7d27\uff1a\u7a84\u5c4f 2 \u5217 \u00d7 3 \u884c\u65f6\u6bcf\u884c 120px\uff0c\u5360\u6389\u6574\u5c4f\u8fd1\u4e09\u5206\u4e4b\u4e00 *\/\n    @media(max-width: 680px) {\n        .fsb.fsb-bhda .specbar div {\n            padding:13px 12px\n        }\n\n        .fsb.fsb-bhda .specbar b {\n            font-size: 19px !important\n        }\n\n        .fsb.fsb-bhda .specbar span {\n            font-size: 11.5px !important;\n            margin-top: 3px\n        }\n    }\n\n    \/* \u7ad9\u5185\u4e92\u94fe\u6761\uff08\u672c\u6b21\u65b0\u589e\uff09\uff1a\u672c\u65cf\u9875\u9762\u6b63\u6587\u539f\u5148\u4e0d\u6d89\u53ca\u5176\u4ed6\u4ea7\u54c1\u7ebf\uff0c\u8865\u4e00\u6761\u901a\u5f80\u4e3b\u4ea7\u54c1\u7ebf\u7684\u5185\u94fe *\/\n    .fsb.fsb-bhda .rail-links {\n        padding: 48px 0 0\n    }\n\n    .fsb.fsb-bhda .rail-links .rl-in {\n        border: 1px solid var(--fsb-line);\n        border-left: 4px solid var(--fsb-primary);\n        border-radius: var(--fsb-radius-card);\n        background: var(--fsb-surface);\n        padding: 26px 30px\n    }\n\n    .fsb.fsb-bhda .rail-links h2 {\n        font-size: 19px\n    }\n\n    .fsb.fsb-bhda .rail-links p {\n        margin: 10px 0 0;\n        font-size: 14px;\n        color: var(--fsb-body)\n    }\n\n    .fsb.fsb-bhda .rail-links ul {\n        display: grid;\n        grid-template-columns: repeat(3,minmax(0,1fr));\n        gap: 10px 26px;\n        margin: 18px 0 0;\n        padding: 0;\n        list-style: none\n   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Adjustable Heavy-Duty Buffers \u2014 Air-Bag Return with 1\u20135 Step On-Site Tuning<\/h1>\n                <p class=\"hero-sub\">Everything the BHD platform does, plus an adjustment knob. One heavy-duty model can cover several work stations with different loads.<\/p>\n                <div class=\"btn-row\">\n                    <a href=\"#form\" class=\"btn btn-light\">Request Free Sizing<\/a>\n                    <a href=\"#fsb-bhda-models\" class=\"btn btn-ghost\">See Model Table<\/a>\n                <\/div>\n                <div class=\"specbar\">\n                    <div>\n                        <b>9.6 \u2013 224 kJ<\/b>\n                        <span>Energy per cycle<\/span>\n                    <\/div>\n                    <div>\n                        <b>50 \u2013 300 mm<\/b>\n                        <span>Stroke range<\/span>\n                    <\/div>\n                    <div>\n                        <b>\u00d8130 \u2013 \u00d8275<\/b>\n                        <span>Cylinder bore<\/span>\n                    <\/div>\n                    <div>\n                        <b>1 \u2013 5<\/b>\n                        <span>Adjustment steps<\/span>\n                    <\/div>\n                    <div>\n                        <b>0.75 \u2013 3.25 m\/s<\/b>\n                        <span>Impact velocity<\/span>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<!-- FORGESAIL \u00b7 \u9762\u5305\u5c51 + \u516d\u7cfb\u5217\u8054\u52a8\u5bfc\u822a \u00b7 \u5f53\u524d\u9875\uff1aBHDA Adjustable -->\n<div class=\"fsb fsb-crumbs\">\n    <div class=\"wrap\">\n        <nav class=\"crmb\" aria-label=\"Breadcrumb\">\n            <a href=\"https:\/\/forgesail.com\/\">Home<\/a>\n            <span class=\"sep\">\/<\/span>\n            <a href=\"https:\/\/forgesail.com\/products\/\">Products<\/a>\n            <span class=\"sep\">\/<\/span>\n            <a href=\"https:\/\/forgesail.com\/products\/buffer-stops\/\">Buffer Stops<\/a>\n            <span class=\"sep\">\/<\/span>\n            <a href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/\">Hydraulic Buffers<\/a>\n            <span class=\"sep\">\/<\/span>\n            <span class=\"cur\" aria-current=\"page\">BHDA Adjustable<\/span>\n        <\/nav>\n        <nav class=\"ser-nav\" aria-label=\"BHDA Adjustable series\">\n            <span class=\"sn-title\">Six series<\/span>\n            <a class=\"chip\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/\">\n                <b>Overview<\/b>\n            <\/a>\n            <a class=\"chip\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bd\/\">\n                <b>BD<\/b>\n                Adjustable\n            <\/a>\n            <a class=\"chip\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bc\/\">\n                <b>BC<\/b>\n                Self-Compensating\n            <\/a>\n            <a class=\"chip\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bhd\/\">\n                <b>BHD<\/b>\n                Air-Bag\n            <\/a>\n            <a class=\"chip is-cur\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bhda\/\" aria-current=\"page\">\n                <b>BHDA<\/b>\n                Adjustable\n            <\/a>\n            <a class=\"chip\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bhs\/\">\n                <b>BHS<\/b>\n                Spring-Type\n            <\/a>\n            <a class=\"chip\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bhi\/\">\n                <b>BHI<\/b>\n                Pneumatic\n            <\/a>\n        <\/nav>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-612b776 elementor-widget elementor-widget-html\" data-id=\"612b776\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"overview\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Overview<\/span>\n                <h2>What the BHDA Series Is For<\/h2>\n                <div class=\"ov-split\">\n                    <div class=\"lede\">\n                        <p>BHDA takes the BHD air-bag platform and adds an adjustment assembly. You keep the short body and the low recoil of the nitrogen return, and you gain the ability to retune the damping force on site.<\/p>\n                        <p>The practical benefit is inventory. A single BHDA model can cover several work stations with different loads, which cuts the number of heavy-duty sizes you have to stock \u2014 and it removes the risk of ordering a factory-set unit against a load estimate that turns out to be wrong.<\/p>\n                        <p>The adjustment range is narrower than BHD &#x27;s stroke and energy envelope: BHDA covers 50 to 300 mm of stroke and up to 224 kJ per cycle. Beyond that, BHD is the right call.<\/p>\n                    <\/div>\n                    <figure class=\"ov-figure\">\n                        <img loading=\"lazy\" src=\"https:\/\/forgesail.com\/wp-content\/uploads\/2026\/09\/hydraulic-buffer-bhda-Exploded_Diagram.webp\" alt=\"BHDA Adjustable Heavy-Duty Hydraulic Buffers \u2014 exploded view of internal components\" width=\"1037\" height=\"1370\" loading=\"lazy\" decoding=\"async\">\n                    <\/figure>\n                <\/div>\n                >\n  \n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-5d9c663 elementor-widget elementor-widget-html\" data-id=\"5d9c663\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"theory\" class=\"section-alt\">\n            <div class=\"wrap\">\n                <div class=\"split\">\n                    <div>\n                        <span class=\"eyebrow\">Energy Absorption<\/span>\n                        <h2>Air-Bag Return with an Adjustment Sleeve<\/h2>\n                        <p>The nitrogen bladder handles the return exactly as it does in the BHD series. On top of that, an adjustable sleeve meters how much oil bypasses the orifice stack at each step. Step 1 gives the lightest damping and the highest impact velocity; step 5 gives the heaviest damping and the lowest.<\/p>\n                    <\/div>\n                    <figure class=\"figure\">\n                        <svg viewBox=\"0 0 360 210\" role=\"img\" aria-label=\"Nitrogen air bag return cross-section\">\n                            <rect x=\"34\" y=\"70\" width=\"266\" height=\"70\" rx=\"8\" fill=\"#eaf1fb\" stroke=\"#043384\" stroke-width=\"2.2\"\/>\n                            <rect x=\"150\" y=\"70\" width=\"14\" height=\"70\" fill=\"#043384\"\/>\n                            <rect x=\"164\" y=\"97\" width=\"118\" height=\"12\" rx=\"6\" fill=\"#42A2D9\"\/>\n                            <ellipse cx=\"238\" cy=\"92\" rx=\"42\" ry=\"20\" fill=\"#61CE70\" opacity=\".4\" stroke=\"#1d7a44\" stroke-width=\"2\"\/>\n                            <ellipse cx=\"238\" cy=\"130\" rx=\"36\" ry=\"16\" fill=\"#61CE70\" opacity=\".28\" stroke=\"#1d7a44\" stroke-width=\"1.8\"\/>\n                            <text x=\"238\" y=\"97\" text-anchor=\"middle\" font-family=\"Plus Jakarta Sans,sans-serif\" font-size=\"13\" font-weight=\"800\" fill=\"#1d7a44\">N &#8322;<\/text>\n                            <rect x=\"300\" y=\"92\" width=\"14\" height=\"14\" rx=\"3\" fill=\"#060097\"\/>\n                            <path d=\"M40 105 L14 105\" stroke=\"#67768e\" stroke-width=\"2.4\"\/>\n                            <path d=\"M22 97 L12 105 L22 113\" fill=\"none\" stroke=\"#67768e\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\n                            <text x=\"10\" y=\"88\" font-family=\"Inter,sans-serif\" font-size=\"11\" fill=\"#67768e\">impact<\/text>\n                            <g font-family=\"Inter,sans-serif\" font-size=\"10.5\" fill=\"#67768e\">\n                                <text x=\"150\" y=\"176\">piston<\/text>\n                                <text x=\"212\" y=\"176\">air bag<\/text>\n                                <text x=\"296\" y=\"176\">gas valve<\/text>\n                            <\/g>\n                            <g stroke=\"#94a3b8\" stroke-width=\"1\" stroke-dasharray=\"3 3\">\n                                <line x1=\"157\" y1=\"140\" x2=\"157\" y2=\"168\"\/>\n                                <line x1=\"238\" y1=\"150\" x2=\"238\" y2=\"168\"\/>\n                                <line x1=\"307\" y1=\"140\" x2=\"307\" y2=\"168\"\/>\n                            <\/g>\n                        <\/svg>\n                        <figcaption>\n                            <strong>Figure.<\/strong>\n                            Air-Bag Return with an Adjustment Sleeve \u2014 schematic cross-section,\n        not to scale. Dimensional drawings and 3D STEP files are supplied with every quotation.\n                        <\/figcaption>\n                    <\/figure>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-f296eeb elementor-widget elementor-widget-html\" data-id=\"f296eeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"advantages\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Performance<\/span>\n                <h2>Performance &amp;Advantages<\/h2>\n                <div class=\"lede\">\n                    <p>OSHA \/ AISE \/ CMMA \/ DIN \/ FEM compliant. Special epoxy-painted cylinder and hard-chrome-plated piston rod for outdoor and corrosive service. 60 cycles\/hour maximum.<\/p>\n                <\/div>\n                <div class=\"adv\">\n                    <div class=\"adv-item\">\n                        <span class=\"n\">01<\/span>\n                        <h4>1\u20135 step adjustment<\/h4>\n                        <p>Tune the damping force on site as the load or speed changes.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">02<\/span>\n                        <h4>One model, several stations<\/h4>\n                        <p>Cuts heavy-duty spare-part inventory and removes the risk of a wrong factory setting.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">03<\/span>\n                        <h4>Air-bag return<\/h4>\n                        <p>Short body and very low recoil, inherited from the BHD platform.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">04<\/span>\n                        <h4>Certified design<\/h4>\n                        <p>Meets OSHA, AISE, CMMA, DIN and FEM requirements.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">05<\/span>\n                        <h4>60 cycles per hour<\/h4>\n                        <p>Maximum cycle rate across the adjustment range.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">06<\/span>\n                        <h4>Outdoor and corrosive duty<\/h4>\n                        <p>Special epoxy paint system and hard-chrome-plated piston rod as standard.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">07<\/span>\n                        <h4>-35 \u00b0C to 100 \u00b0C<\/h4>\n                        <p>With the special seal and hydraulic oil package, up from -10 \u00b0C to 60 \u00b0C.\n<\/p>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-1e8fac8 elementor-widget elementor-widget-html\" data-id=\"1e8fac8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"fsb-bhda-models\" class=\"section-alt\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Model Selection<\/span>\n                <h2>Model Selection<\/h2>\n                <p class=\"lede\">Select by stroke and energy per cycle, then confirm with the maximum energy per hour.\n    If your duty cycle is demanding, send us the numbers and we will run the calculation for you.<\/p>\n                <!-- Engineering data drawing -->\n                <figure class=\"ms-figure\">\n                    <img loading=\"lazy\" src=\"https:\/\/forgesail.com\/wp-content\/uploads\/2026\/09\/bhda-Engineering-Data-no-bdc.png\" alt=\"BHDA Adjustable Heavy-Duty Hydraulic Buffers \u2014 engineering data: dimensions, stroke and energy ratings\" width=\"1489\" height=\"621\" loading=\"lazy\" decoding=\"async\">\n                <\/figure>\n                <div class=\"filterbar\">\n                    <input id=\"fsb-bhda-modelFilter\" type=\"search\" placeholder=\"Filter by model group, stroke or energy\u2026\" aria-label=\"Filter models\">\n                    <span class=\"count\" id=\"fsb-bhda-modelCount\"><\/span>\n                <\/div>\n                <div class=\"table-scroll\">\n                    <table aria-label=\"Model Selection\" class=\"spec\" id=\"fsb-bhda-modelTable\">\n                        <thead>\n                            <tr>\n                                <th scope=\"col\">Model Group<\/th>\n                                <th scope=\"col\">Stroke Range (mm)<\/th>\n                                <th scope=\"col\">Max Energy\/Cycle (Nm)<\/th>\n                                <th scope=\"col\">Cylinder \u00d8 (mm)<\/th>\n                            <\/tr>\n                        <\/thead>\n                        <tbody>\n                            <tr>\n                                <td>BHDA3.0<\/td>\n                                <td class=\"num\">50 \u2013 300<\/td>\n                                <td class=\"num\">9,600 \u2013 50,700<\/td>\n                                <td class=\"num\">\u00d8130<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BHDA4.0<\/td>\n                                <td class=\"num\">50 \u2013 250<\/td>\n                                <td class=\"num\">15,100 \u2013 67,500<\/td>\n                                <td class=\"num\">\u00d8200<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BHDA5.0<\/td>\n                                <td class=\"num\">100 \u2013 300<\/td>\n                                <td class=\"num\">46,700 \u2013 140,000<\/td>\n                                <td class=\"num\">\u00d8215<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BHDA6.0<\/td>\n                                <td class=\"num\">100 \u2013 300<\/td>\n                                <td class=\"num\">76,500 \u2013 224,000<\/td>\n                                <td class=\"num\">\u00d8275<\/td>\n                            <\/tr>\n                            <tr id=\"fsb-bhda-emptyRow\" class=\"empty-row hide\">\n                                <td colspan=\"4\">No model matches that search.<\/td>\n                            <\/tr>\n                        <\/tbody>\n                    <\/table>\n                <\/div>\n                <div class=\"scroll-hint\">\u2190 Swipe to see all columns \u2192<\/div>\n                <p style=\"font-size:13.5px;color:var(--fsb-muted);margin-top:14px\">Model group shown as BHDA &lt;bore &gt;\u00d7&lt;stroke &gt;. Add the mounting code (FF \/ FR \/ TF \/ FM \/ CM) and options (SC \/ SS \/ PB). Standard fill is ISO VG 46 hydraulic oil.<\/p>\n            <\/div>\n        <\/section>\n    <\/div>\n    <script>\n        (function() {\n            var box = document.getElementById('fsb-bhda-modelFilter');\n            if (!box) {\n                return;\n            }\n            var table = document.getElementById('fsb-bhda-modelTable');\n            var rows = table ? table.querySelectorAll('tbody tr') : [];\n            var out = document.getElementById('fsb-bhda-modelCount');\n            var empty = document.getElementById('fsb-bhda-emptyRow');\n            var total = 0;\n            Array.prototype.forEach.call(rows, function(r) {\n                if (r.id !== 'fsb-bhda-emptyRow') {\n                    total++;\n                }\n            });\n            box.addEventListener('input', function() {\n                var q = box.value.trim().toLowerCase()\n                  , shown = 0;\n                Array.prototype.forEach.call(rows, function(r) {\n                    if (r.id === 'fsb-bhda-emptyRow') {\n                        return;\n                    }\n                    var hit = r.textContent.toLowerCase().indexOf(q) > -1;\n                    r.classList.toggle('hide', !hit);\n                    if (hit) {\n                        shown++;\n                    }\n                });\n                if (empty) {\n                    empty.classList.toggle('hide', shown > 0);\n                }\n                if (out) {\n                    out.textContent = shown + ' of ' + total + ' models';\n                }\n            });\n            if (out) {\n                out.textContent = total + ' models';\n            }\n        }\n        )();\n    <\/script>\n<\/div>\n<div class=\"elementor-element elementor-element-48e3717 elementor-widget elementor-widget-html\" data-id=\"48e3717\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"adjustment\" class=\"section-alt\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Set-Up<\/span>\n                <h2>How to Set the Adjustment Step<\/h2>\n                <ol class=\"osteps\">\n                    <li>\n                        <b>Loosen the locking screw first<\/b>\n                        <span>The adjustment nut cannot move until the locking screw is released.<\/span>\n                    <\/li>\n                    <li>\n                        <b>Set step 1<\/b>\n                        <span>Always begin at the lightest setting.<\/span>\n                    <\/li>\n                    <li>\n                        <b>Increase one step at a time<\/b>\n                        <span>1 \u2192 2 \u2192 3 \u2192 4 \u2192 5, checking the stopping behaviour after each change.<\/span>\n                    <\/li>\n                    <li>\n                        <b>Tighten the locking screw<\/b>\n                        <span>If it is left loose, the nut rotates under impact and the step drifts.<\/span>\n                    <\/li>\n                <\/ol>\n                <div class=\"notebox danger\">\n                    <h4>Always start at step 1<\/h4>\n                    <p>Starting from a high step will overload and damage the buffer. Step 1 is the lightest damping and the highest impact velocity; step 5 is the heaviest and the slowest.<\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-35e7ea7 elementor-widget elementor-widget-html\" data-id=\"35e7ea7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"mounting\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Mounting<\/span>\n                <h2>Mounting Arrangements &amp;Accessories<\/h2>\n                <div class=\"lede\">\n                    <p>Five standard mounting arrangements. Add SC for a safety chain, SS for a rod-return position sensor, or PB for a piston rod bellow.<\/p>\n                <\/div>\n                <div class=\"mount\">\n                    <div class=\"mount-item\">\n                        <svg viewBox=\"0 0 120 76\" role=\"img\" aria-label=\"FF Front Flange\">\n                            <line x1=\"8\" y1=\"20\" x2=\"112\" y2=\"20\" stroke=\"#cbd5e1\" stroke-width=\"1.4\" stroke-dasharray=\"4 3\"\/>\n                            <rect x=\"46\" y=\"26\" width=\"46\" height=\"24\" rx=\"4\" fill=\"#eaf1fb\" stroke=\"#043384\" stroke-width=\"2\"\/>\n                            <rect x=\"92\" y=\"33\" width=\"26\" height=\"10\" rx=\"4\" fill=\"#42A2D9\"\/>\n                            <rect x=\"32\" y=\"18\" width=\"12\" height=\"40\" rx=\"2\" fill=\"#060097\"\/>\n                        <\/svg>\n                        <b>FF<\/b>\n                        <span>Front Flange<\/span>\n                    <\/div>\n                    <div class=\"mount-item\">\n                        <svg viewBox=\"0 0 120 76\" role=\"img\" aria-label=\"FR Rear Flange\">\n                            <line x1=\"8\" y1=\"20\" x2=\"112\" y2=\"20\" stroke=\"#cbd5e1\" stroke-width=\"1.4\" stroke-dasharray=\"4 3\"\/>\n                            <rect x=\"46\" y=\"26\" width=\"46\" height=\"24\" rx=\"4\" fill=\"#eaf1fb\" stroke=\"#043384\" stroke-width=\"2\"\/>\n                            <rect x=\"92\" y=\"33\" width=\"26\" height=\"10\" rx=\"4\" fill=\"#42A2D9\"\/>\n                            <rect x=\"94\" y=\"18\" width=\"12\" height=\"40\" rx=\"2\" fill=\"#060097\"\/>\n                        <\/svg>\n                        <b>FR<\/b>\n                        <span>Rear Flange<\/span>\n                    <\/div>\n                    <div class=\"mount-item\">\n                        <svg viewBox=\"0 0 120 76\" role=\"img\" aria-label=\"TF Front + Rear\">\n                            <line x1=\"8\" y1=\"20\" x2=\"112\" y2=\"20\" stroke=\"#cbd5e1\" stroke-width=\"1.4\" stroke-dasharray=\"4 3\"\/>\n                            <rect x=\"46\" y=\"26\" width=\"46\" height=\"24\" rx=\"4\" fill=\"#eaf1fb\" stroke=\"#043384\" stroke-width=\"2\"\/>\n                            <rect x=\"92\" y=\"33\" width=\"26\" height=\"10\" rx=\"4\" fill=\"#42A2D9\"\/>\n                            <rect x=\"32\" y=\"18\" width=\"12\" height=\"40\" rx=\"2\" fill=\"#060097\"\/>\n                            <rect x=\"94\" y=\"18\" width=\"12\" height=\"40\" rx=\"2\" fill=\"#060097\"\/>\n                        <\/svg>\n                        <b>TF<\/b>\n                        <span>Front + Rear<\/span>\n                    <\/div>\n                    <div class=\"mount-item\">\n                        <svg viewBox=\"0 0 120 76\" role=\"img\" aria-label=\"FM Foot Mount\">\n                            <line x1=\"8\" y1=\"20\" x2=\"112\" y2=\"20\" stroke=\"#cbd5e1\" stroke-width=\"1.4\" stroke-dasharray=\"4 3\"\/>\n                            <rect x=\"46\" y=\"26\" width=\"46\" height=\"24\" rx=\"4\" fill=\"#eaf1fb\" stroke=\"#043384\" stroke-width=\"2\"\/>\n                            <rect x=\"92\" y=\"33\" width=\"26\" height=\"10\" rx=\"4\" fill=\"#42A2D9\"\/>\n                            <rect x=\"40\" y=\"52\" width=\"14\" height=\"8\" rx=\"2\" fill=\"#060097\"\/>\n                            <rect x=\"82\" y=\"52\" width=\"14\" height=\"8\" rx=\"2\" fill=\"#060097\"\/>\n                        <\/svg>\n                        <b>FM<\/b>\n                        <span>Foot Mount<\/span>\n                    <\/div>\n                    <div class=\"mount-item\">\n                        <svg viewBox=\"0 0 120 76\" role=\"img\" aria-label=\"CM U Clevis\">\n                            <line x1=\"8\" y1=\"20\" x2=\"112\" y2=\"20\" stroke=\"#cbd5e1\" stroke-width=\"1.4\" stroke-dasharray=\"4 3\"\/>\n                            <rect x=\"46\" y=\"26\" width=\"46\" height=\"24\" rx=\"4\" fill=\"#eaf1fb\" stroke=\"#043384\" stroke-width=\"2\"\/>\n                            <rect x=\"92\" y=\"33\" width=\"26\" height=\"10\" rx=\"4\" fill=\"#42A2D9\"\/>\n                            <path d=\"M32 26 L32 50 M32 30 L46 30 M32 46 L46 46\" stroke=\"#060097\" stroke-width=\"3\" fill=\"none\" stroke-linecap=\"round\"\/>\n                        <\/svg>\n                        <b>CM<\/b>\n                        <span>U Clevis<\/span>\n                    <\/div>\n                <\/div>\n                <h3 style=\"margin-top:44px\">Accessories<\/h3>\n                <div class=\"acc\">\n                    <div class=\"acc-item\">\n                        <b>SC<\/b>\n                        <span>Safety chain \u2014 mandatory on any installation above 2 m height.<\/span>\n                    <\/div>\n                    <div class=\"acc-item\">\n                        <b>SS<\/b>\n                        <span>Safety sensor \u2014 confirms the piston rod has fully returned.<\/span>\n                    <\/div>\n                    <div class=\"acc-item\">\n                        <b>PB<\/b>\n                        <span>Piston rod bellow \u2014 strongly recommended in dusty service.<\/span>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-dd2dce6 elementor-widget elementor-widget-html\" data-id=\"dd2dce6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"maintenance\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Installation &amp;Maintenance<\/span>\n                <h2>Installation &amp;Maintenance<\/h2>\n                <div class=\"dodont\">\n                    <div class=\"dd-col dd-no\">\n                        <div class=\"dd-head\">Never do this<\/div>\n                        <ul class=\"dd-list\">\n                            <li>Use the buffer as an end stop.<\/li>\n                            <li>Remove the steel strike head.<\/li>\n                            <li>Exceed the permitted side load angle.<\/li>\n                            <li>Paint the piston rod or the body.<\/li>\n                            <li>Place it near acids, solvents or soluble cutting oil.<\/li>\n                            <li>Expose it to open flame \u2014 the unit is oil filled.<\/li>\n                        <\/ul>\n                    <\/div>\n                    <div class=\"dd-col dd-yes\">\n                        <div class=\"dd-head\">Do this<\/div>\n                        <ul class=\"dd-list\">\n                            <li>Side load angle: below 2.5\u00b0 at strokes up to 300 mm, below 1\u00b0 above 300 mm.<\/li>\n                            <li>Never use the buffer as an end stop \u2014 fit a stop collar 1 mm before end of travel.<\/li>\n                            <li>Always tighten the locking screw after every adjustment.<\/li>\n                            <li>Parallel buffers must be the same model, with the knob on the same step.<\/li>\n                            <li>Inspect every 6 months on safety and emergency duty, monthly in frequent service.<\/li>\n                        <\/ul>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-4b8000a elementor-widget elementor-widget-html\" data-id=\"4b8000a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <section id=\"sizing\" class=\"sizing\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow on-dark\">What We Need From You<\/span>\n                <h2>Send Us Five Numbers \u2014 Get a Sizing Report in 48 Hours<\/h2>\n                <p class=\"lede\">Every BHDA unit is configured against your application data. Give us these five\n    values and our engineers will return a recommended model with verified shock-force versus stroke and\n    deceleration versus stroke curves. Free, and with no commitment to buy.<\/p>\n                <ul class=\"params\">\n                    <li>\n                        W <em>kg \u00b7 moving weight<\/em>\n                    <\/li>\n                    <li>\n                        V <em>m\/s \u00b7 impact velocity<\/em>\n                    <\/li>\n                    <li>\n                        Fp <em>N \u00b7 driving force<\/em>\n                    <\/li>\n                    <li>\n                        n <em>pcs \u00b7 buffers in parallel<\/em>\n                    <\/li>\n                    <li>Cycles \/ hour<\/li>\n                <\/ul>\n                <div class=\"btn-row\">\n                    <a href=\"#form\" class=\"btn btn-light\">Request Free Sizing<\/a>\n                    <a href=\"https:\/\/wa.me\/8617768339068\" class=\"btn btn-ghost\" target=\"_blank\" rel=\"noopener\">Talk to an Engineer<\/a>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-6442884 elementor-widget elementor-widget-html\" data-id=\"6442884\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <!-- ===== FORGESAIL BLOCK \u00b7 12\u2011faq \u00b7 FAQ \u624b\u98ce\u7434\uff08\u5361\u7247\u7248\uff0cBHDA\u7cfb\u5217\u95ee\u7b54\u5185\u5bb9\uff09 ===== -->\n    <!-- \u7528\u6cd5\uff1a\u5728 Elementor \u62d6\u5165\u300cHTML\u300d\u5c0f\u5de5\u5177\uff0c\u6574\u6bb5\u7c98\u8d34\u5373\u53ef -->\n    <div class=\"fsb fsb-block fsb-12-faq\" data-page-node-id=\"sf1H902VPmvv4eaApESuFB\">\n        <section id=\"faq\" class=\"section-alt\" data-page-node-id=\"GKtEcV1IbIAXN1pL25AZCx\">\n            <div class=\"wrap\" data-page-node-id=\"pB5okwRcd2PCFftztuvIF5\">\n                <span class=\"eyebrow\" data-page-node-id=\"Du2UPvF64b2ZUn2CZCgYTT\">FAQ<\/span>\n                <h2 data-page-node-id=\"WUo21MnMTRrE2KhBgM3uCb\">BHDA Series FAQ<\/h2>\n                <div class=\"faq\" id=\"fsb-12-faq-faqList\" data-page-node-id=\"fBDeBYX08jKNjXIOgkAeo8\">\n                    <div class=\"faq-item\" data-page-node-id=\"Lk2I7Io4EGk9C6YD6oih9T\">\n                        <button class=\"faq-q\" type=\"button\" aria-expanded=\"false\" aria-controls=\"faq-a-1\" data-page-node-id=\"noZWHXsQgC7MZJUsc7kjiJ\">How is BHDA different from BHD?<\/button>\n                        <div class=\"faq-a\" id=\"faq-a-1\" role=\"region\" data-page-node-id=\"BKSxXws1LMknfxQBreJsw9\">\n                            <div class=\"faq-a-inner\" data-page-node-id=\"MI4vJwFBmOnYoiGeNqzTUH\">Same air\u2011bag return platform, with an added adjustment sleeve giving five damping steps. The trade\u2011off is envelope: BHDA covers 50 to 300\u202fmm stroke and up to 224\u202fkJ per cycle, while BHD reaches 1500\u202fmm and 900\u202fkJ.<\/div>\n                        <\/div>\n                    <\/div>\n                    <div class=\"faq-item\" data-page-node-id=\"lRdD5as6Ki3484lOzEtlA0\">\n                        <button class=\"faq-q\" type=\"button\" aria-expanded=\"false\" aria-controls=\"faq-a-2\" data-page-node-id=\"FNb1Z5AgNDHCR71E40IeFM\">Which direction do I turn the knob?<\/button>\n                        <div class=\"faq-a\" id=\"faq-a-2\" role=\"region\" data-page-node-id=\"r7pbOOEU4gQIIIcy0SCXom\">\n                            <div class=\"faq-a-inner\" data-page-node-id=\"EePNJICmRrGjIo119l0x2b\">Step\u202f1 is the lightest damping and suits the highest impact velocity; step\u202f5 is the heaviest damping and the lowest velocity. Always start at\u202f1 and work up.<\/div>\n                        <\/div>\n                    <\/div>\n                    <div class=\"faq-item\" data-page-node-id=\"UkBAQCEwf0wmMctiupD6gD\">\n                        <button class=\"faq-q\" type=\"button\" aria-expanded=\"false\" aria-controls=\"faq-a-3\" data-page-node-id=\"Au8OBO7DVAfYg4g1WeLPxX\">What happens if I start at step 5?<\/button>\n                        <div class=\"faq-a\" id=\"faq-a-3\" role=\"region\" data-page-node-id=\"78AfN81M6gm8JyjUCyj5Pc\">\n                            <div class=\"faq-a-inner\" data-page-node-id=\"4O5WpQtc2jYBqQ7nvStiIl\">You risk overloading and damaging the buffer. The adjustment nut should always be set to\u202f1 before the first impact, then increased one step at a time.<\/div>\n                        <\/div>\n                    <\/div>\n                    <div class=\"faq-item\" data-page-node-id=\"H0bAc1ACAbGVJJVumOJ3uO\">\n                        <button class=\"faq-q\" type=\"button\" aria-expanded=\"false\" aria-controls=\"faq-a-4\" data-page-node-id=\"nMT0DEf99grhk63rvyBqi1\">What oil does BHDA use?<\/button>\n                        <div class=\"faq-a\" id=\"faq-a-4\" role=\"region\" data-page-node-id=\"HorVuQUpvyYe7Urgnz9OVw\">\n                            <div class=\"faq-a-inner\" data-page-node-id=\"mSooZ4nwCxgFFRvyhl5bOx\">Standard industrial ISO\u202fVG\u202f46 hydraulic oil, operating from \u201110\u202f\u00b0C to 60\u202f\u00b0C. With the special seal and oil package the range extends to \u201135\u202f\u00b0C to 100\u202f\u00b0C.<\/div>\n                        <\/div>\n                    <\/div>\n                    <div class=\"faq-item\" data-page-node-id=\"v5V1eGaBSzoiwadaqIJxvv\">\n                        <button class=\"faq-q\" type=\"button\" aria-expanded=\"false\" aria-controls=\"faq-a-5\" data-page-node-id=\"y7loAGw1rEhcVTtSMEAQQx\">What is the lead time?<\/button>\n                        <div class=\"faq-a\" id=\"faq-a-5\" role=\"region\" data-page-node-id=\"UbE4UKNwJJp0kQ2vJuU5BQ\">\n                            <div class=\"faq-a-inner\" data-page-node-id=\"0HeA6V5i5K45wiEKJAvhqV\">BHDA is built to order against your application data. Typical lead time is 4 to 6\u202fweeks depending on configuration, with express manufacturing available for urgent projects.<\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n        <script>\n            (function() {\n                var root = document.getElementById('fsb-12-faq-faqList');\n                if (!root) {\n                    return;\n                }\n                var items = root.querySelectorAll('.faq-item');\n                Array.prototype.forEach.call(items, function(item) {\n                    var q = item.querySelector('.faq-q');\n                    var a = item.querySelector('.faq-a');\n                    q.addEventListener('click', function() {\n                        var isOpen = item.classList.contains('open');\n\n                        \/\/ \u5173\u95ed\u5176\u4ed6\uff0c\u5b9e\u73b0\u624b\u98ce\u7434\u6548\u679c\n                        Array.prototype.forEach.call(items, function(other) {\n                            other.classList.remove('open');\n                            other.querySelector('.faq-a').style.maxHeight = null;\n                        });\n\n                        \/\/ \u6253\u5f00\u5f53\u524d\n                        if (!isOpen) {\n                            item.classList.add('open');\n                            a.style.maxHeight = a.scrollHeight + 'px';\n                        }\n                    });\n                });\n\n                \/\/ \u76d1\u542c\u7a97\u53e3\u5927\u5c0f\u53d8\u5316\u4ee5\u91cd\u65b0\u8c03\u6574 max\u2011height\n                window.addEventListener('resize', function() {\n                    var openAnswer = root.querySelector('.faq-item.open .faq-a');\n                    if (openAnswer) {\n                        openAnswer.style.maxHeight = openAnswer.scrollHeight + 'px';\n                    }\n                });\n            }\n            )();\n        <\/script>\n    <\/div>\n    <!-- ===== END BLOCK \u00b7 12\u2011faq ===== -->\n<\/div>\n<div class=\"elementor-element elementor-element-c1bdf49 elementor-widget elementor-widget-html\" data-id=\"c1bdf49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bhda\">\n        <!-- \u7ad9\u5185\u4e92\u94fe\uff1a\u672c\u65cf\u6b63\u6587\u539f\u4e0d\u6d89\u53ca\u5176\u4ed6\u4ea7\u54c1\u7ebf\uff0c\u8865\u4e00\u6761\u901a\u5f80\u4e3b\u4ea7\u54c1\u7ebf\u7684\u5185\u94fe -->\n        <section class=\"rail-links\" id=\"rail-system\">\n            <div class=\"wrap\">\n                <div class=\"rl-in\">\n                    <h2>Part of a Complete Crane Rail System<\/h2>\n                    <p>Hydraulic buffers are one component we supply. The same engineering and manufacturing team also delivers the rest of the runway system:<\/p>\n                    <ul>\n                        <li>\n                            <a href=\"https:\/\/forgesail.com\/products\/rails\/\">Crane rails<\/a>\n                            \u2014 rail sections for crane runway systems\n                        <\/li>\n                        <li>\n                            <a href=\"https:\/\/forgesail.com\/products\/rail-clips\/\">Rail clips<\/a>\n                            \u2014 bolted and welded fastening systems\n                        <\/li>\n                        <li>\n                            <a href=\"https:\/\/forgesail.com\/products\/rail-pads\/\">Rail pads<\/a>\n                            \u2014 vibration and impact damping\n                        <\/li>\n                        <li>\n                            <a href=\"https:\/\/forgesail.com\/products\/sole-plates\/\">Sole plates<\/a>\n                            \u2014 rail support and load distribution\n                        <\/li>\n                        <li>\n                            <a href=\"https:\/\/forgesail.com\/products\/grouts\/\">Rail grouts<\/a>\n                            \u2014 cementitious bedding for rail fixings\n                        <\/li>\n                        <li>\n                            <a href=\"https:\/\/forgesail.com\/services\/machining-center\/\">Custom machining<\/a>\n                            \u2014 molds and precision machined parts\n                        <\/li>\n                    <\/ul>\n                <\/div>\n            <\/div>\n        <\/section>\n        <section class=\"final-cta\">\n            <div class=\"wrap\">\n                <h2>Talk to an Engineer<\/h2>\n                <p class=\"lede\">Tell us your application and we will come back with a recommendation, a sizing\n    calculation and a quotation. If you are still at the design stage, we are happy to work from drawings.<\/p>\n                <div class=\"btn-row\" style=\"justify-content:center\">\n                    <a href=\"https:\/\/wa.me\/8617768339068\" class=\"btn btn-primary\" target=\"_blank\" rel=\"noopener\">Contact Our Engineering Team<\/a>\n                    <a href=\"https:\/\/forgesail.com\/products\/\" class=\"btn btn-outline\">Back to Hydraulic Buffers<\/a>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<script type=\"application\/ld+json\">\n    {\n        \"@context\": \"https:\/\/schema.org\",\n        \"@type\": \"FAQPage\",\n        \"mainEntity\": [\n            {\n                \"@type\": \"Question\",\n                \"name\": \"How is BHDA different from BHD?\",\n                \"acceptedAnswer\": {\n                    \"@type\": \"Answer\",\n                    \"text\": \"Same air\u2011bag return platform, with an added adjustment sleeve giving five damping steps. 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