{"id":17121,"date":"2026-06-18T10:00:07","date_gmt":"2026-06-18T10:00:07","guid":{"rendered":"https:\/\/www.dgcrane.com\/?p=17121"},"modified":"2026-06-18T10:08:54","modified_gmt":"2026-06-18T10:08:54","slug":"crane-wire-rope-minimum-breaking-load-calculator","status":"publish","type":"post","link":"https:\/\/www.dgcrane.com\/de\/crane-wire-rope-minimum-breaking-load-calculator\/","title":{"rendered":"Rechner f\u00fcr die Mindestbruchlast von Kranseilen"},"content":{"rendered":"<!-- WordPress Embed Wire Rope Tension Calculator | Two Column Layout Fixed Duty Dropdown Bug -->\n<div id=\"calculator\">\n    <style>\n        #calculator {\n            --primary-color: #0a3487;\n            --primary-hover: #F58423;\n            --error-color: #e53935;\n            --bg-color: #EAEEF7;\n            --text-color: #4a4a4a;\n            max-width: 545px;\n            padding: 30px;\n            background: var(--bg-color);\n            font-family: system-ui, sans-serif;\n            color: var(--text-color);\n            box-sizing: border-box;\n        }\n        #calculator .calc-wrap {\n            width: 100%;\n        }\n        \/* Two Column Row Container *\/\n        #calculator .row-two-col {\n            display: flex;\n            gap: 16px;\n        }\n        #calculator .col-half {\n            flex: 1;\n            width: 50%;\n        }\n        #calculator label {\n            display: block;\n            font-size: 14px;height: 22px;\n        }\n#calculator div>div{gap: 0}\n        #calculator input,\n        #calculator select {\n            width: 100%;\n            height: 36px;\n            font-size: 16px;\n            border: 1px solid #ccc;\n            border-radius: 0;\n            padding: 0 10px;\n            box-sizing: border-box;\n            transition: 0.2s ease;\n            background: #ffffff;\n        }\n        #calculator input:focus,\n        #calculator select:focus {\n            outline: none;\n            border: 2px solid var(--primary-color);\n        }\n        #calculator input.error,\n        #calculator select.error {\n            border: 2px solid var(--error-color);\n        }\n        #calculator .error-msg {\n            display: none;\n            font-size: 12px;\n            color: var(--error-color);\n            margin-top: 4px;\n        }\n        #calculator .btn-group {\n            display: flex;\n            gap: 10px;\n            margin: 20px 0 10px 0;\n        }\n        #calculator button {\n            flex: 1;\n            height: 34px;\n            line-height: 34px;\n            font-size: 14px;\n            border: none;\n            border-radius: 0;\n            cursor: pointer;\n            transition: 0.2s ease;\n        }\n        #calculator .btn-calc {\n            background: var(--primary-color);\n            color: #ffffff;\n        }\n        #calculator .btn-calc:hover {\n            background: var(--primary-hover);\n        }\n        #calculator .btn-reset {\n            background: #cccccc;\n            color: #000000;\n        }\n        #calculator .result-box {\n            margin-top: 12px;\n            padding: 10px;\n            background: #ffffff;\n            border: 1px solid #dddddd;\n        }\n        #calculator .result-row {\n            display: flex;\n            gap: 16px;\n        }\n        #calculator .result-item {\n            flex: 1;\n            font-size: 16px;\n            margin: 8px 0;\n        }\n        #calculator .result-value {\n            font-size: 20px;\n            font-weight: bold;\n            color: var(--primary-color);\n            display: block;\n        }\n        #calculator sub {\n            font-size: 0.7em;\n        }\n        \/* Mobile Responsive: switch to single column *\/\n        @media (max-width: 768px) {\n            #calculator .row-two-col,\n            #calculator .result-row {\n                flex-direction: column;\n                gap: 0;\n            }\n            #calculator .col-half {\n                width: 100%;\n            }\n            #calculator input,\n            #calculator select {\n                height: 0.7rem;\n                font-size: 0.28rem;\n            }\n            #calculator button {\n                height: 0.7rem;\n                line-height: 0.7rem;\n                font-size: 0.28rem;\n            }\n            #calculator .btn-group {\n                flex-direction: column;\n            }\n            #calculator label {\n                font-size: 0.28rem;\n            }\n        }\n    <\/style>\n    <div class=\"calc-wrap\">\n        <!-- Row 1: Q & Qh Two Column -->\n        <div class=\"row-two-col\">\n            <div class=\"col-half\">\n                <div class=\"form-item\">\n                    <label for=\"calculator-Q\">Nennlast Q (t)<\/label>\n                    <input type=\"number\" id=\"calculator-Q\" step=\"0.01\" placeholder=\"z. B. 20\">\n                    <div class=\"error-msg\" id=\"calculator-Q-error\">Bitte geben Sie eine g\u00fcltige Nennlast ein.<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"col-half\">\n                <div class=\"form-item\">\n                    <label for=\"calculator-Qh\">Anbaugewicht Q<sub>H<\/sub> (T)<\/label>\n                    <input type=\"number\" id=\"calculator-Qh\" step=\"0.01\" placeholder=\"z. B. 0,4\">\n                    <div class=\"error-msg\" id=\"calculator-Qh-error\">Bitte geben Sie ein g\u00fcltiges Anbaugewicht ein.<\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n\n        <!-- Row 2: Sheave Ratio & Gamma Two Column -->\n        <div class=\"row-two-col\">\n            <div class=\"col-half\">\n                <div class=\"form-item\">\n                    <label for=\"calculator-m\">Seil\u00fcbersetzungen m<\/label>\n                    <select id=\"calculator-m\">\n                        <option value=\"2\">2<\/option>\n                        <option value=\"3\">3<\/option>\n                        <option value=\"4\" selected>4<\/option>\n                        <option value=\"5\">5<\/option>\n                        <option value=\"6\">6<\/option>\n                        <option value=\"8\">8<\/option>\n                    <\/select>\n                    <div class=\"error-msg\" id=\"calculator-m-error\">Bitte w\u00e4hlen Sie das 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value=\"luffing\">Vorliekwinden \/ Ausleger<\/option>\n                    <\/select>\n                    <div class=\"error-msg\" id=\"calculator-mechType-error\">Bitte w\u00e4hlen Sie den Mechanismustyp aus.<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"col-half\">\n                <div class=\"form-item\">\n                    <label for=\"calculator-ropeType\">Drahtseiltyp<\/label>\n                    <select id=\"calculator-ropeType\">\n                        <option value=\"standard\">Standard-Drahtseil<\/option>\n                        <option value=\"rotationResist\">Rotationsbest\u00e4ndiges Drahtseil<\/option>\n                    <\/select>\n                    <div class=\"error-msg\" id=\"calculator-ropeType-error\">Bitte w\u00e4hlen Sie den Drahtseiltyp.<\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n\n        <!-- Single Full Width: Winding Type (Only for Lifting) -->\n        <div class=\"form-item\" id=\"windingTypeWrapper\">\n            <label for=\"calculator-windingType\">Wicklungsart<\/label>\n            <select id=\"calculator-windingType\">\n                <option value=\"single\">Einlagige Wicklung<\/option>\n                <option value=\"multi\">Mehrlagige Wicklung<\/option>\n            <\/select>\n            <div class=\"error-msg\" id=\"calculator-windingType-error\">Bitte w\u00e4hlen Sie die Wicklungsart.<\/div>\n        <\/div>\n\n        <!-- Single Full Width: Duty Class -->\n        <div class=\"form-item\">\n            <label for=\"calculator-dutyClass\">Kranbetriebsklasse (Klasse M, einschlie\u00dflich Z)<sub>P<\/sub>)<\/label>\n            <select id=\"calculator-dutyClass\">\n                <option value=\"\">Laden\u2026<\/option>\n            <\/select>\n            <div class=\"error-msg\" id=\"calculator-dutyClass-error\">Bitte w\u00e4hlen Sie die Dienstklasse aus.<\/div>\n        <\/div>\n\n        <div class=\"btn-group\">\n            <button class=\"btn-calc\" id=\"calcBtn\">S und F berechnen<sub>Mindest<\/sub><\/button>\n            <button class=\"btn-reset\" id=\"resetBtn\">Alles zur\u00fccksetzen<\/button>\n        <\/div>\n\n        <!-- Two Column Result Area -->\n        <div class=\"result-box\">\n            <div class=\"result-row\">\n                <div class=\"result-item\">\n                    Maximale Seilspannung S (kN):\n                    <span class=\"result-value\" id=\"result-S\">&#8211;<\/span>\n                <\/div>\n                <div class=\"result-item\">\n                    Mindestbruchkraft F (kN):\n                    <span class=\"result-value\" id=\"result-Fmin\">&#8211;<\/span>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <script>\n        let calcTool_S = 0;\n        const g = 9.8;\n\n        const calcTool_ZpTable = {\n            lifting: {\n                single: {\n                    standard: {\n                        M1: 3.15, M2: 3.35, 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null, M8: null\n                    }\n                }\n            }\n        };\n\n        function calcTool_updateDutyClassOptions() {\n            const mech = document.getElementById('calculator-mechType').value;\n            const winding = document.getElementById('calculator-windingType').value;\n            const rope = document.getElementById('calculator-ropeType').value;\n            const selectEl = document.getElementById('calculator-dutyClass');\n            selectEl.options.length = 0;\n\n            const dataSet = calcTool_ZpTable[mech][winding][rope];\n            for (const [mClass, zpVal] of Object.entries(dataSet)) {\n                if (zpVal === null) continue;\n                const opt = new Option(`${mClass} (Z\u209a = ${zpVal})`, zpVal);\n                selectEl.options.add(opt);\n                if(mClass === \"M3\") opt.selected = true;\n            }\n        }\n\n        function calcTool_toggleWindingType() {\n            const mech = 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parseFloat(document.getElementById('calculator-Q').value);\n            const Qh_t = parseFloat(document.getElementById('calculator-Qh').value);\n            const m = parseInt(document.getElementById('calculator-m').value);\n            const gamma = parseFloat(document.getElementById('calculator-gamma').value);\n            const Zp = parseFloat(document.getElementById('calculator-dutyClass').value);\n\n            const Q_kg = Q_t * 1000;\n            const Qh_kg = Qh_t * 1000;\n            const S_N = ((Q_kg + Qh_kg) * g \/ m) * gamma;\n            calcTool_S = S_N \/ 1000;\n            const Fmin = calcTool_S * Zp;\n\n            document.getElementById('result-S').innerText = calcTool_S.toFixed(2);\n            document.getElementById('result-Fmin').innerText = Fmin.toFixed(2);\n        }\n\n        function calcTool_doReset() {\n            document.getElementById('calculator-Q').value = '';\n            document.getElementById('calculator-Qh').value = '';\n            document.getElementById('calculator-gamma').value = '1.1';\n            document.getElementById('calculator-m').value = '4';\n            document.getElementById('calculator-mechType').value = 'lifting';\n            document.getElementById('calculator-windingType').value = 'single';\n            document.getElementById('calculator-ropeType').value = 'standard';\n            calcTool_clearAllError();\n            document.getElementById('result-S').innerText = '-';\n            document.getElementById('result-Fmin').innerText = '-';\n            calcTool_S = 0;\n            calcTool_toggleWindingType();\n        }\n\n        function calcTool_bindEvents() {\n            document.getElementById('calculator-mechType').addEventListener('change', calcTool_toggleWindingType);\n            document.getElementById('calculator-windingType').addEventListener('change', calcTool_updateDutyClassOptions);\n            document.getElementById('calculator-ropeType').addEventListener('change', calcTool_updateDutyClassOptions);\n\n            const inputList = [\n                {id:'calculator-Q', err:'calculator-Q-error'},\n                {id:'calculator-Qh', err:'calculator-Qh-error'},\n                {id:'calculator-m', err:'calculator-m-error'},\n                {id:'calculator-gamma', err:'calculator-gamma-error'},\n                {id:'calculator-mechType', err:'calculator-mechType-error'},\n                {id:'calculator-windingType', err:'calculator-windingType-error'},\n                {id:'calculator-ropeType', err:'calculator-ropeType-error'},\n                {id:'calculator-dutyClass', err:'calculator-dutyClass-error'}\n            ];\n            inputList.forEach(item => {\n                document.getElementById(item.id).addEventListener('input', () => calcTool_clearError(item.id, item.err));\n            });\n\n            document.getElementById('calcBtn').addEventListener('click', calcTool_doCalculate);\n            document.getElementById('resetBtn').addEventListener('click', calcTool_doReset);\n        }\n\n        document.addEventListener('DOMContentLoaded', function(){\n            calcTool_bindEvents();\n            calcTool_toggleWindingType();\n        });\n    <\/script>\n<\/div>\n\n\n\n<div style=\"height:60px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Formel zur Berechnung der Mindestbruchlast von Kranseilen<\/h2>\n\n\n\n<p>F<sub>min<\/sub>\u2265S\u00d7Z<sub>p<\/sub><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>F<sub>Mindest<\/sub>Mindestbruchlast des Drahtseils<\/li>\n\n\n\n<li>S: die maximale Seilspannung (Einheit: kN)<\/li>\n\n\n\n<li>Z<sub>p<\/sub>: der minimale Auslegungsfaktor&nbsp;<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Formel zur Berechnung der maximalen Seilspannung eines Krans<\/h3>\n\n\n\n<p>S=\uff08Q+Qh\uff09g\/m\u00d7\u03b3<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>F: Nennhebekapazit\u00e4t (Einheit: kg)<\/li>\n\n\n\n<li>Q<sub>H<\/sub>Gesamtgewicht der Hebevorrichtung einschlie\u00dflich Haken, Seilscheibe, Hebebalken, Greifer, Trichter und aller anderen Zubeh\u00f6rteile, die sich mit dem Drahtseil heben und senken (Einheit: kg)<\/li>\n\n\n\n<li>g: Erdbeschleunigung, fester Wert von 9,8 m\/s\u00b2<\/li>\n\n\n\n<li>m: Seilscheiben-Blockverh\u00e4ltnis<\/li>\n\n\n\n<li>\u03b3: Umfassender Lastkorrekturfaktor, im Allgemeinen angenommen mit 1,1<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Hinweise<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bei der Berechnung von S f\u00fcr Hebezeuge m\u00fcssen folgende vier Faktoren ber\u00fccksichtigt werden: die Nennhebekapazit\u00e4t der Hebezeuge, die Masse des Seilscheibenblocks und\/oder anderer Hebezeuge, das Seilwickelverh\u00e4ltnis und der Wirkungsgrad des Seilwickelsystems (z. B. der Lagerwirkungsgrad).<\/li>\n\n\n\n<li>Das Seilrollenverh\u00e4ltnis eines Eintrommelsystems entspricht der Anzahl der tragenden Seilstr\u00e4nge. Beispielsweise ergibt sich bei zwei Str\u00e4ngen ein Verh\u00e4ltnis m = 2. Bei einem Zweitrommelsystem ist das Verh\u00e4ltnis die H\u00e4lfte der Stranganzahl. Mit vier tragenden und zwei freien Str\u00e4ngen ergibt sich m = 4\/2 = 2.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Geeignete Kr\u00e4ne und Hebezeuge<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Laufkr\u00e4ne<\/li>\n\n\n\n<li>Hebezeuge-Drahtseil<\/li>\n\n\n\n<li>Portal- oder Halbportalkrane<\/li>\n\n\n\n<li>Portal- oder Halbportalbr\u00fcckenkrane<\/li>\n\n\n\n<li>Mobilkrane<\/li>\n\n\n\n<li>Auslegerkrane (S\u00e4ulen-, Ausleger-, Wand- oder Laufkrane)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"Der Rechner f\u00fcr die Mindestbruchlast (MBL) von Kranseilen dient als schnelles Werkzeug zur Absch\u00e4tzung der Tragf\u00e4higkeit von Drahtseilen und zur \u00dcberpr\u00fcfung der Modellauswahl. Durch Eingabe verschiedener Drahtseilspezifikationen k\u00f6nnen Anwender die Bruchfestigkeit unterschiedlicher Drahtseilkonstruktionen automatisch und schnell vergleichen und deren Kompatibilit\u00e4t mit den entsprechenden Trommeln ermitteln. Dar\u00fcber hinaus unterst\u00fctzt er die Konstruktion von Hubwerkskomponenten wie Trommeln und Seilscheiben sowie die \u00dcberpr\u00fcfung der Motorleistung. W\u00e4hrend des sp\u00e4teren Kranbetriebs und der Wartung k\u00f6nnen Wartungstechniker die Daten dieses Rechners nutzen, um zu beurteilen, ob ein Drahtseilwechsel erforderlich ist und um zu \u00fcberpr\u00fcfen, ob neue Ersatzseile die urspr\u00fcnglichen Sicherheitsstandards erf\u00fcllen. Die Auswahl eines Drahtseils mit der richtigen MBL tr\u00e4gt somit dazu bei, \u00dcberlastungen zu vermeiden, das Unfallrisiko zu senken und die Lebensdauer der Drahtseile zu verl\u00e4ngern.","protected":false},"author":8,"featured_media":17122,"parent":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"single-onlinetools.php","format":"standard","meta":{"_acf_changed":false,"rank_math_lock_modified_date":false,"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[1059],"tags":[],"class_list":["post-17121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-online-tools"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/posts\/17121"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/comments?post=17121"}],"version-history":[{"count":8,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/posts\/17121\/revisions"}],"predecessor-version":[{"id":17136,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/posts\/17121\/revisions\/17136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/media\/17122"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/media?parent=17121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/categories?post=17121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/de\/wp-json\/wp\/v2\/tags?post=17121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}