{"id":6259,"date":"2026-09-05T03:18:16","date_gmt":"2026-09-05T03:18:16","guid":{"rendered":"https:\/\/forgesail.com\/?page_id=6259"},"modified":"2026-09-22T08:06:34","modified_gmt":"2026-09-22T08:06:34","slug":"series-bc","status":"publish","type":"page","link":"https:\/\/forgesail.com\/fr\/products\/buffer-stops\/hydraulic-buffer\/series-bc\/","title":{"rendered":"s\u00e9rie BC"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6259\" class=\"elementor elementor-6259\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ddfe31a e-flex e-con-boxed e-con e-parent\" data-id=\"ddfe31a\" 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-d46b18a elementor-widget elementor-widget-html\" data-id=\"d46b18a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!-- ================================================================\n     FORGESAIL \u00b7 BC Self-Compensating \u00b7 \u9875\u9762\u5185\u5bb9\uff08\u5408\u5e76\u5757\uff09\n     \u539f 10 \u4e2a HTML \u5c0f\u5de5\u5177 \u2192 1 \u4e2a | CSS \u89c4\u5219 323 \u2192 152 \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 9 \u4e2a\uff08\u7b2c 3,4,5,6,8,9,10,11,12 \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-bc .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-BC-Compact-Non-Adjustable-Series-banner2-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-bc .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-bc .hero .wrap {\n        position: relative;\n        z-index: 2;\n    }\n\n    .fsb.fsb-bc .hero h1 {\n        color: #0f2f4f !important;\n        max-width: 19ch\n    }\n\n    .fsb.fsb-bc .hero-sub {\n        font-size: 18px !important;\n        color: #3d4b58 !important;\n        max-width: 60ch\n    }\n\n    .fsb.fsb-bc .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    }\n\n    .fsb.fsb-bc .specbar div {\n        background: #fff;\n        padding: 20px 18px\n    }\n\n    .fsb.fsb-bc .specbar b {\n        display: block;\n        font-family: var(--fsb-font-head) !important;\n        font-size: 25px !important;\n        font-weight: 800 !important;\n        color: #043384 !important;\n        line-height: 1.15 !important;\n        letter-spacing: -.02em !important\n    }\n\n    .fsb.fsb-bc .specbar span {\n        display: block;\n        font-size: 12px !important;\n        color: #5c6b7a !important;\n        margin-top: 5px;\n        line-height: 1.4 !important\n    }\n\n    @media(max-width: 1024px) {\n        .fsb.fsb-bc .specbar {\n            grid-template-columns:repeat(3,1fr);\n        }\n    }\n\n    @media(max-width: 680px) {\n        .fsb.fsb-bc .specbar {\n            grid-template-columns:1fr 1fr;\n        }\n    }\n\n    .fsb.fsb-bc .split {\n        display: grid;\n        grid-template-columns: 1fr 1fr;\n        gap: 52px;\n        align-items: center;\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc .split {\n            grid-template-columns:1fr;\n            gap: 34px;\n        }\n    }\n\n    .fsb.fsb-bc .adv {\n        display: grid;\n        grid-template-columns: repeat(3,1fr);\n        gap: 22px;\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc .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-bc .adv-item h4 {\n        margin-bottom: 8px;\n    }\n\n    .fsb.fsb-bc .adv-item p {\n        font-size: 15px !important;\n        margin: 0;\n    }\n\n    @media(max-width: 1024px) {\n        .fsb.fsb-bc .adv {\n            grid-template-columns:1fr 1fr;\n        }\n    }\n\n    .fsb.fsb-bc .filterbar {\n        display: flex;\n        flex-wrap: wrap;\n        align-items: center;\n        gap: 14px;\n        margin-bottom: 18px;\n    }\n\n    .fsb.fsb-bc .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-bc .filterbar input:focus {\n        outline: none;\n        border-color: var(--fsb-primary-hover);\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc table.spec {\n        width: 100%;\n        border-collapse: collapse;\n        font-size: 15px !important;\n        min-width: 720px;\n    }\n\n    .fsb.fsb-bc 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-bc table.spec td {\n        padding: 13px 17px;\n        border-bottom: 1px solid var(--fsb-line);\n        white-space: nowrap;\n    }\n\n    .fsb.fsb-bc table.spec tbody tr:nth-child(even) {\n        background: #fafbfd;\n    }\n\n    .fsb.fsb-bc table.spec tbody tr:hover {\n        background: #eef4fc;\n    }\n\n    .fsb.fsb-bc 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-bc table.spec .num {\n        font-variant-numeric: tabular-nums !important;\n    }\n\n    .fsb.fsb-bc table.spec tbody tr.hide {\n        display: none;\n    }\n\n    .fsb.fsb-bc .empty-row td {\n        text-align: center;\n        color: var(--fsb-muted) !important;\n        padding: 26px;\n    }\n\n    .fsb.fsb-bc .fsb .table-scroll {\n        position: relative;\n        -webkit-overflow-scrolling: touch;\n    }\n\n    .fsb.fsb-bc .fsb .table-scroll::-webkit-scrollbar {\n        height: 9px;\n    }\n\n    .fsb.fsb-bc .fsb .table-scroll::-webkit-scrollbar-track {\n        background: #eef2f7;\n        border-radius: 99px;\n    }\n\n    .fsb.fsb-bc .fsb .table-scroll::-webkit-scrollbar-thumb {\n        background: #b8c6dc;\n        border-radius: 99px;\n    }\n\n    .fsb.fsb-bc .fsb .table-scroll::-webkit-scrollbar-thumb:hover {\n        background: var(--fsb-primary-hover);\n    }\n\n    .fsb.fsb-bc .fsb table.spec td:first-child, .fsb.fsb-bc .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-bc .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-bc .fsb table.spec tbody tr:nth-child(even) td:first-child {\n        background: #fafbfd;\n    }\n\n    .fsb.fsb-bc .fsb table.spec tbody tr:hover td:first-child {\n        background: #eef4fc;\n    }\n\n    .fsb.fsb-bc .fsb table.spec .empty-row td:first-child {\n        position: static;\n        box-shadow: none;\n    }\n\n    .fsb.fsb-bc .fsb table.spec td:nth-child(2) {\n        font-weight: 700 !important;\n        color: var(--fsb-ink) !important;\n    }\n\n    .fsb.fsb-bc .fsb table.spec td, .fsb.fsb-bc .fsb table.spec th {\n        font-variant-numeric: tabular-nums !important;\n    }\n\n    .fsb.fsb-bc .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-bc .fsb .scroll-hint {\n            display:block;\n        }\n    }\n\n    .fsb.fsb-bc .section-alt {\n        background: var(--fsb-surface);\n    }\n\n    .fsb.fsb-bc .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-bc .notebox.warn {\n        border-left-color: #d98324;\n        background: #fdf6ec;\n    }\n\n    .fsb.fsb-bc .notebox h4 {\n        margin-bottom: 8px;\n        font-size: 16px !important;\n    }\n\n    .fsb.fsb-bc .notebox p {\n        font-size: 15.5px !important;\n        margin: 0 0 .7em;\n    }\n\n    .fsb.fsb-bc .notebox p:last-child {\n        margin: 0;\n    }\n\n    .fsb.fsb-bc .notebox ul {\n        margin: 0;\n        padding-left: 20px;\n        font-size: 15.5px !important;\n    }\n\n    .fsb.fsb-bc .notebox li {\n        margin-bottom: 7px;\n    }\n\n    .fsb.fsb-bc .osteps {\n        counter-reset: os;\n        list-style: none;\n        padding: 0;\n        margin: 0;\n    }\n\n    .fsb.fsb-bc .osteps li {\n        counter-increment: os;\n        position: relative;\n        padding-left: 52px;\n        margin-bottom: 20px;\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc .osteps span {\n        font-size: 15.5px !important;\n    }\n\n    .fsb.fsb-bc .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-bc .dd-col {\n        padding: 28px 28px 24px;\n    }\n\n    .fsb.fsb-bc .dd-col+.dd-col {\n        border-left: 1px solid var(--fsb-line);\n    }\n\n    .fsb.fsb-bc .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-bc .dd-no .dd-head {\n        color: #c0392b !important;\n        border-color: #f4d4d0;\n    }\n\n    .fsb.fsb-bc .dd-yes .dd-head {\n        color: #1d7a44 !important;\n        border-color: #cfe9db;\n    }\n\n    .fsb.fsb-bc .dd-list {\n        list-style: none;\n        padding: 0;\n        margin: 0;\n        font-size: 15px !important;\n    }\n\n    .fsb.fsb-bc .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-bc .dd-list li:last-child {\n        margin-bottom: 0;\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc .adv, .fsb.fsb-bc .acc, .fsb.fsb-bc .dodont, .fsb.fsb-bc .mount, .fsb.fsb-bc .rel {\n            grid-template-columns:1fr;\n        }\n\n        .fsb.fsb-bc .dd-col+.dd-col {\n            border-left: 0;\n            border-top: 1px solid var(--fsb-line);\n        }\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc .btn-light {\n        background: #1668b3;\n        border-color: #1668b3;\n        color: #fff !important\n    }\n\n    .fsb.fsb-bc .btn-light:hover {\n        background: #0d4c86;\n        border-color: #0d4c86;\n        color: #fff !important;\n        transform: translateY(-2px)\n    }\n\n    .fsb.fsb-bc .btn-ghost {\n        background: transparent;\n        color: #0a3281 !important;\n        border-color: rgba(10,50,129,.45)\n    }\n\n    .fsb.fsb-bc .btn-ghost:hover {\n        background: #f0f6fd;\n        border-color: #0a3281;\n        color: #0a3281 !important;\n        transform: translateY(-2px)\n    }\n\n    .fsb.fsb-bc .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-bc .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-bc .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-bc .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-bc .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-bc .sizing .wrap {\n        position: relative;\n        z-index: 2;\n    }\n\n    .fsb.fsb-bc .sizing h2 {\n        color: var(--fsb-white) !important;\n    }\n\n    .fsb.fsb-bc .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        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\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 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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-bc, .fsb.fsb-bc *, .fsb.fsb-bc *::before, .fsb.fsb-bc *::after {\n        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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        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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-BC-Compact-Non-Adjustable-Series-banner2-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-bc .specbar div {\n            padding:13px 12px\n        }\n\n        .fsb.fsb-bc .specbar b {\n            font-size: 19px !important\n        }\n\n        .fsb.fsb-bc .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-bc .rail-links {\n        padding: 48px 0 0\n    }\n\n    .fsb.fsb-bc .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-bc .rail-links h2 {\n        font-size: 19px\n    }\n\n    .fsb.fsb-bc .rail-links p {\n        margin: 10px 0 0;\n        font-size: 14px;\n        color: var(--fsb-body)\n    }\n\n    .fsb.fsb-bc .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    }\n\n    .fsb.fsb-bc .rail-links li {\n        font-size: 13.5px;\n        line-height: 1.6;\n        color: var(--fsb-body)\n    }\n\n    .fsb.fsb-bc .rail-links li a {\n        font-weight: 600\n    }\n\n    @media(max-width: 900px) {\n        .fsb.fsb-bc .rail-links ul {\n            grid-template-columns:repeat(2,minmax(0,1fr))\n        }\n    }\n\n    @media(max-width: 560px) {\n        .fsb.fsb-bc .rail-links ul {\n            grid-template-columns:1fr\n        }\n\n        .fsb.fsb-bc .rail-links .rl-in {\n            padding: 20px 18px\n        }\n    }\n<\/style>\n<div class=\"elementor-element elementor-element-286aa99 elementor-widget elementor-widget-html\" data-id=\"286aa99\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\n        <section class=\"hero\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow on-dark\">BC Series<\/span>\n                <h1>BC Self-Compensating Hydraulic Buffers \u2014 10 to 680 Nm in the Smallest Envelope<\/h1>\n                <p class=\"hero-sub\">Fixed orifice pattern, set at the factory for one load class. Maximum energy absorption per unit of volume, and the lowest unit price in the range.<\/p>\n                <div class=\"btn-row\">\n                    <a href=\"#form\" class=\"btn btn-light\">Request Free Sizing<\/a>\n                    <a href=\"#fsb-bc-models\" class=\"btn btn-ghost\">See Model Table<\/a>\n                <\/div>\n                <div class=\"specbar\">\n                    <div>\n                        <b>10 \u2013 680 Nm<\/b>\n                        <span>Energy per cycle<\/span>\n                    <\/div>\n                    <div>\n                        <b>4 \u2013 80 mm<\/b>\n                        <span>Stroke range<\/span>\n                    <\/div>\n                    <div>\n                        <b>M6 \u2013 M36<\/b>\n                        <span>Cylinder thread<\/span>\n                    <\/div>\n                    <div>\n                        <b>200 %+<\/b>\n                        <span>vs. comparable brands<\/span>\n                    <\/div>\n                    <div>\n                        <b>3 grades<\/b>\n                        <span>Soft \/ Middle \/ Hard<\/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\uff1aBC Self-Compensating -->\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\">BC Self-Compensating<\/span>\n        <\/nav>\n        <nav class=\"ser-nav\" aria-label=\"BC Self-Compensating 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 is-cur\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bc\/\" aria-current=\"page\">\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\" href=\"https:\/\/forgesail.com\/products\/buffer-stops\/hydraulic-buffer\/series-bhda\/\">\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-91b5517 elementor-widget elementor-widget-html\" data-id=\"91b5517\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\n        <section id=\"overview\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Overview<\/span>\n                <h2>What the BC Series Is For<\/h2>\n                <div class=\"ov-split\">\n                    <div class=\"lede\">\n                        <p>BC does one job and does it very well. With no adjustment mechanism to package, the series absorbs more energy than a comparable adjustable unit of the same size \u2014 in our testing, more than 200 % of the capacity of competing products in the same envelope.<\/p>\n                        <p>The trade-off is that the orifice pattern is fixed at the factory. You tell us the effective weight and impact velocity, and we select the pattern. Once built, the setting cannot be changed.<\/p>\n                        <p>To keep selection simple, every BC model is offered in three hardness grades \u2014 -1 (Soft), -2 (Middle) and -3 (Hard) \u2014 matched to an effective weight range. Pick the grade, pick the stroke, and you are done.<\/p>\n                    <\/div>\n                    <figure class=\"ov-figure\">\n                        <img loading=\"lazy\" src=\"https:\/\/forgesail.com\/wp-content\/uploads\/2026\/09\/hydraulic-buffer-bc-Exploded_Diagram.webp\" alt=\"BC Self-Compensating Hydraulic Buffers \u2014 exploded view of internal components\" width=\"925\" height=\"1267\" 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-dd44fe8 elementor-widget elementor-widget-html\" data-id=\"dd44fe8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\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>One-Piece Damping Tube and Piston<\/h2>\n                        <p>The damping tube and the piston are machined as a single unit, which is where the capacity advantage comes from. With no joint between the two, the oil column is shorter and the orifice pattern can be placed closer to the point of peak pressure. An internal coil spring returns the rod.<\/p>\n                    <\/div>\n                    <figure class=\"figure\">\n                        <svg viewBox=\"0 0 360 210\" role=\"img\" aria-label=\"Internal coil spring 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=\"300\" y=\"86\" width=\"26\" height=\"38\" rx=\"5\" fill=\"#043384\" opacity=\".2\"\/>\n                            <rect x=\"150\" y=\"70\" width=\"14\" height=\"70\" fill=\"#043384\"\/>\n                            <rect x=\"164\" y=\"97\" width=\"150\" height=\"12\" rx=\"6\" fill=\"#42A2D9\"\/>\n                            <path d=\"M186 84 q9 -9 18 0 t18 0 t18 0 t18 0 t18 0 t18 0\" fill=\"none\" stroke=\"#060097\" stroke-width=\"2.6\"\/>\n                            <path d=\"M186 124 q9 -9 18 0 t18 0 t18 0 t18 0 t18 0 t18 0\" fill=\"none\" stroke=\"#060097\" stroke-width=\"2.6\"\/>\n                            <g fill=\"none\" stroke=\"#060097\" stroke-width=\"2\">\n                                <circle cx=\"205\" cy=\"92\" r=\"3.4\"\/>\n                                <circle cx=\"231\" cy=\"92\" r=\"3.4\"\/>\n                                <circle cx=\"257\" cy=\"92\" r=\"3.4\"\/>\n                                <circle cx=\"218\" cy=\"130\" r=\"3.4\"\/>\n                                <circle cx=\"244\" cy=\"130\" r=\"3.4\"\/>\n                            <\/g>\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=\"168\" y=\"176\">piston<\/text>\n                                <text x=\"232\" y=\"176\">spring<\/text>\n                                <text x=\"286\" y=\"176\">orifices<\/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=\"222\" y1=\"140\" x2=\"222\" y2=\"168\"\/>\n                                <line x1=\"292\" y1=\"140\" x2=\"292\" y2=\"168\"\/>\n                            <\/g>\n                        <\/svg>\n                        <figcaption>\n                            <strong>Figure.<\/strong>\n                            One-Piece Damping Tube and Piston \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-af071e7 elementor-widget elementor-widget-html\" data-id=\"af071e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\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>Standard operating range -10 \u00b0C to 80 \u00b0C, extended to -30 \u00b0C to 100 \u00b0C with the special seal and hydraulic oil package.<\/p>\n                <\/div>\n                <div class=\"adv\">\n                    <div class=\"adv-item\">\n                        <span class=\"n\">01<\/span>\n                        <h4>One-piece tube and piston<\/h4>\n                        <p>Over 200 % of the energy absorption of other brands in the same model size.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">02<\/span>\n                        <h4>Matched sealing<\/h4>\n                        <p>Below M20: Japanese NBR rod seal and NBR wiper. From M20 up: polyurethane rod seal and NBR wiper, on a chrome-plated rod.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">03<\/span>\n                        <h4>Side-load bearing<\/h4>\n                        <p>Long front bearing with a bushing, for relaxed alignment tolerance.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">04<\/span>\n                        <h4>0.02 \u2013 5 m\/s<\/h4>\n                        <p>Standard impact velocity range, extensible to 20 m\/s on request.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">05<\/span>\n                        <h4>-10 \u00b0C to 80 \u00b0C<\/h4>\n                        <p>Extends to -30 \u00b0C to 100 \u00b0C with the special seal and oil package.<\/p>\n                    <\/div>\n                    <div class=\"adv-item\">\n                        <span class=\"n\">06<\/span>\n                        <h4>Three hardness grades<\/h4>\n                        <p>-1 Soft, -2 Middle, -3 Hard \u2014 selected by effective weight range.<\/p>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-a183f60 elementor-widget elementor-widget-html\" data-id=\"a183f60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\n        <section id=\"fsb-bc-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\/bc-Engineering-Data-no-bdc.png\" alt=\"BC Self-Compensating Hydraulic Buffers \u2014 engineering data: dimensions, stroke and energy ratings\" width=\"1300\" height=\"561\" loading=\"lazy\" decoding=\"async\">\n                <\/figure>\n                <div class=\"filterbar\">\n                    <input id=\"fsb-bc-modelFilter\" type=\"search\" placeholder=\"Filter by model, stroke, energy or thread\u2026\" aria-label=\"Filter models\">\n                    <span class=\"count\" id=\"fsb-bc-modelCount\"><\/span>\n                <\/div>\n                <div class=\"table-scroll\">\n                    <table aria-label=\"Model Selection\" class=\"spec\" id=\"fsb-bc-modelTable\">\n                        <thead>\n                            <tr>\n                                <th scope=\"col\">Model<\/th>\n                                <th scope=\"col\">Stroke (mm)<\/th>\n                                <th scope=\"col\">Max Energy\/Cycle (Nm)<\/th>\n                                <th scope=\"col\">Max Energy\/Hour (Nm\/h)<\/th>\n                                <th scope=\"col\">Cylinder Dia.<\/th>\n                                <th scope=\"col\">Weight (g)<\/th>\n                            <\/tr>\n                        <\/thead>\n                        <tbody>\n                            <tr>\n                                <td>BC06-04(B)<\/td>\n                                <td class=\"num\">4<\/td>\n                                <td class=\"num\">10<\/td>\n                                <td class=\"num\">3,000<\/td>\n                                <td class=\"num\">M6\u00d70.75<\/td>\n                                <td class=\"num\">4<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC08-06(B)<\/td>\n                                <td class=\"num\">6<\/td>\n                                <td class=\"num\">10<\/td>\n                                <td class=\"num\">8,100<\/td>\n                                <td class=\"num\">M8\u00d71.0<\/td>\n                                <td class=\"num\">14<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC10-08(B)<\/td>\n                                <td class=\"num\">8<\/td>\n                                <td class=\"num\">10<\/td>\n                                <td class=\"num\">14,800<\/td>\n                                <td class=\"num\">M10\u00d71.0<\/td>\n                                <td class=\"num\">21<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC12-10(B)<\/td>\n                                <td class=\"num\">10<\/td>\n                                <td class=\"num\">16<\/td>\n                                <td class=\"num\">34,000<\/td>\n                                <td class=\"num\">M12\u00d71.0<\/td>\n                                <td class=\"num\">38<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC14-12(B)<\/td>\n                                <td class=\"num\">12<\/td>\n                                <td class=\"num\">25<\/td>\n                                <td class=\"num\">41,000<\/td>\n                                <td class=\"num\">M14\u00d71.5<\/td>\n                                <td class=\"num\">67<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC14-15(B)<\/td>\n                                <td class=\"num\">15<\/td>\n                                <td class=\"num\">35<\/td>\n                                <td class=\"num\">51,200<\/td>\n                                <td class=\"num\">M14\u00d71.5<\/td>\n                                <td class=\"num\">74<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC20-15(B)<\/td>\n                                <td class=\"num\">15<\/td>\n                                <td class=\"num\">50<\/td>\n                                <td class=\"num\">38,000<\/td>\n                                <td class=\"num\">M20\u00d71.5<\/td>\n                                <td class=\"num\">183<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC20-20(B)<\/td>\n                                <td class=\"num\">20<\/td>\n                                <td class=\"num\">75<\/td>\n                                <td class=\"num\">55,000<\/td>\n                                <td class=\"num\">M20\u00d71.5<\/td>\n                                <td class=\"num\">204<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC20-30(B)<\/td>\n                                <td class=\"num\">30<\/td>\n                                <td class=\"num\">95<\/td>\n                                <td class=\"num\">65,000<\/td>\n                                <td class=\"num\">M20\u00d71.5<\/td>\n                                <td class=\"num\">226<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC20-50(B)<\/td>\n                                <td class=\"num\">50<\/td>\n                                <td class=\"num\">145<\/td>\n                                <td class=\"num\">75,000<\/td>\n                                <td class=\"num\">M20\u00d71.5<\/td>\n                                <td class=\"num\">288<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC25-25(B)<\/td>\n                                <td class=\"num\">25<\/td>\n                                <td class=\"num\">220<\/td>\n                                <td class=\"num\">111,000<\/td>\n                                <td class=\"num\">M25\u00d71.5<\/td>\n                                <td class=\"num\">293<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC25-40(B)<\/td>\n                                <td class=\"num\">40<\/td>\n                                <td class=\"num\">270<\/td>\n                                <td class=\"num\">182,000<\/td>\n                                <td class=\"num\">M25\u00d71.5<\/td>\n                                <td class=\"num\">343<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC25-50(B)<\/td>\n                                <td class=\"num\">50<\/td>\n                                <td class=\"num\">300<\/td>\n                                <td class=\"num\">200,000<\/td>\n                                <td class=\"num\">M25\u00d71.5<\/td>\n                                <td class=\"num\">458<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC25-80(B)\n<\/td>\n                                <td class=\"num\">80<\/td>\n                                <td class=\"num\">390<\/td>\n                                <td class=\"num\">210,000<\/td>\n                                <td class=\"num\">M25\u00d71.5<\/td>\n                                <td class=\"num\">579<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC36-25(B)<\/td>\n                                <td class=\"num\">25<\/td>\n                                <td class=\"num\">330<\/td>\n                                <td class=\"num\">125,000<\/td>\n                                <td class=\"num\">M36\u00d71.5<\/td>\n                                <td class=\"num\">760<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC36-50(B)<\/td>\n                                <td class=\"num\">50<\/td>\n                                <td class=\"num\">550<\/td>\n                                <td class=\"num\">160,000<\/td>\n                                <td class=\"num\">M36\u00d71.5<\/td>\n                                <td class=\"num\">995<\/td>\n                            <\/tr>\n                            <tr>\n                                <td>BC36-80(B)<\/td>\n                                <td class=\"num\">80<\/td>\n                                <td class=\"num\">680<\/td>\n                                <td class=\"num\">230,000<\/td>\n                                <td class=\"num\">M36\u00d71.5<\/td>\n                                <td class=\"num\">1,280<\/td>\n                            <\/tr>\n                            <tr id=\"fsb-bc-emptyRow\" class=\"empty-row hide\">\n                                <td colspan=\"6\">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\">Add the hardness suffix to the model number: -1 Soft, -2 Middle, -3 Hard. Suffix (B) = steel strike head.<\/p>\n            <\/div>\n        <\/section>\n    <\/div>\n    <script>\n        (function() {\n            var box = document.getElementById('fsb-bc-modelFilter');\n            if (!box) {\n                return;\n            }\n            var table = document.getElementById('fsb-bc-modelTable');\n            var rows = table ? table.querySelectorAll('tbody tr') : [];\n            var out = document.getElementById('fsb-bc-modelCount');\n            var empty = document.getElementById('fsb-bc-emptyRow');\n            var total = 0;\n            Array.prototype.forEach.call(rows, function(r) {\n                if (r.id !== 'fsb-bc-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-bc-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-01bc9ec elementor-widget elementor-widget-html\" data-id=\"01bc9ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\n        <section id=\"adjustment\" class=\"section-alt\">\n            <div class=\"wrap\">\n                <span class=\"eyebrow\">Set-Up<\/span>\n                <h2>Choosing the Hardness Grade<\/h2>\n                <ol class=\"osteps\">\n                    <li>\n                        <b>Work out the effective weight<\/b>\n                        <span>Include the moving mass plus any driven or carried load.<\/span>\n                    <\/li>\n                    <li>\n                        <b>Confirm the impact velocity<\/b>\n                        <span>Speed of the body at the moment of contact.<\/span>\n                    <\/li>\n                    <li>\n                        <b>Select the grade<\/b>\n                        <span>-1 Soft for light loads, -2 Middle for the middle of the range, -3 Hard for the top of the range.<\/span>\n                    <\/li>\n                    <li>\n                        <b>Send both numbers anyway<\/b>\n                        <span>We run the calculation and confirm the grade before you order \u2014 free, within 48 hours.<\/span>\n                    <\/li>\n                <\/ol>\n                <div class=\"notebox warn\">\n                    <h4>BC cannot be retuned after build<\/h4>\n                    <p>This series has no adjustment mechanism. The orifice pattern is fixed at the factory, so the effective weight and impact velocity you give us at enquiry stage drive the selection.<\/p>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-c62ce77 elementor-widget elementor-widget-html\" data-id=\"c62ce77\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\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 must stay below 2\u00b0.<\/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>Parallel buffers must be the same model and the same hardness grade.<\/li>\n                            <li>Do not paint the piston rod or the body.<\/li>\n                            <li>Inspect monthly in frequent service, every 6 months on safety duty.<\/li>\n                        <\/ul>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/section>\n    <\/div>\n<\/div>\n<div class=\"elementor-element elementor-element-86b9005 elementor-widget elementor-widget-html\" data-id=\"86b9005\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\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 BC 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-9e11a57 elementor-widget elementor-widget-html\" data-id=\"9e11a57\" 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\uff0cBC\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\">BC 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\">Why would I choose BC over BD?<\/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\">If your load and speed are known and stable, BC gives you more energy absorption in a smaller body at a lower price. BD only wins when conditions change, or when you are still commissioning and do not yet know the real load.<\/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\">What do -1, -2 and -3 mean?<\/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\">The hardness grade, which sets the effective weight range the buffer is tuned for. -1 is Soft, -2 is Middle, -3 is Hard. Send us your effective weight and impact velocity and we will confirm the grade.<\/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\">Can BC be adjusted later?<\/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\">No. The orifice pattern is fixed at the factory. If you need on\u2011site tuning, use the BD series instead.<\/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\">How small do these go?<\/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\">The smallest model is BC06\u201104 at M6 \u00d7 0.75 thread, 4\u202fmm stroke, 10\u202fNm per cycle and 4\u202fgrams. It is intended for light automation and instrument\u2011grade applications.<\/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\">BC ships from stock within 5 business days.<\/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-ac4328f elementor-widget elementor-widget-html\" data-id=\"ac4328f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n    <div class=\"fsb fsb-bc\">\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\": \"Why would I choose BC over BD?\",\n                \"acceptedAnswer\": {\n                    \"@type\": \"Answer\",\n                    \"text\": \"If your load and speed are known and stable, BC gives you more energy absorption in a smaller body at a lower price. 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