{"id":24324,"date":"2026-02-12T02:24:43","date_gmt":"2026-02-12T02:24:43","guid":{"rendered":"https:\/\/www.mechstream.com\/?p=24324"},"modified":"2026-02-12T02:25:28","modified_gmt":"2026-02-12T02:25:28","slug":"air-bending-tonnage-calculator","status":"publish","type":"post","link":"https:\/\/www.mechstream.com\/ar\/air-bending-tonnage-calculator\/","title":{"rendered":"Air Bending Tonnage Calculator"},"content":{"rendered":"<p>\u0625\u0646 <strong>Air Bending Tonnage Calculator<\/strong> is a practical engineering tool designed to accurately estimate the required bending force when performing air bending operations on a press brake. By inputting key parameters such as material type, tensile strength, sheet thickness, and V-die opening, the Air Bending Tonnage Calculator helps engineers, operators, and production planners determine the correct tonnage per meter or per foot before production begins. This ensures proper machine selection, prevents overloading, protects tooling, and improves bending accuracy. Whether you are working with mild steel, stainless steel, or aluminum, this calculator supports safer operations, optimized setup, and cost-efficient sheet metal fabrication.<\/p>\n\n\n\n<!-- Air Bending Tonnage Calculator - WordPress Embeddable -->\n<style>\n    @import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@300;400;500;600;700&display=swap');\n    \n    \/* \u6837\u5f0f\u9694\u79bb\uff1a\u6240\u6709\u6837\u5f0f\u90fd\u9650\u5b9a\u5728 .tonnage-calculator \u5bb9\u5668\u5185 *\/\n    .tonnage-calculator {\n        font-family: 'Inter', sans-serif;\n        box-sizing: border-box;\n        max-width: 1000px;\n        margin: 0 auto;\n        padding: 16px;\n    }\n    \n    .tonnage-calculator *,\n    .tonnage-calculator *::before,\n    .tonnage-calculator *::after {\n        box-sizing: border-box;\n    }\n    \n    .tonnage-calculator .calc-title {\n        font-size: 1.875rem;\n        font-weight: 700;\n        color: #111827;\n        margin-bottom: 1.5rem;\n        text-align: left;\n    }\n    \n    .tonnage-calculator .calc-card {\n        background-color: #ffffff;\n        border-radius: 1rem;\n        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);\n        padding: 1.5rem;\n    }\n    \n    @media (min-width: 768px) {\n        .tonnage-calculator .calc-card {\n            padding: 2rem;\n        }\n    }\n    \n    .tonnage-calculator .calc-subtitle {\n        font-size: 1.5rem;\n        font-weight: 700;\n        color: #111827;\n        margin-bottom: 1.5rem;\n        display: flex;\n        align-items: center;\n    }\n    \n    .tonnage-calculator .calc-subtitle svg {\n        width: 1.5rem;\n        height: 1.5rem;\n        margin-right: 0.5rem;\n        color: #2563eb;\n    }\n    \n    .tonnage-calculator .calc-form {\n        display: flex;\n        flex-direction: column;\n        gap: 1.5rem;\n    }\n    \n    .tonnage-calculator .form-group label {\n        display: block;\n        font-size: 0.875rem;\n        font-weight: 600;\n        color: #374151;\n        margin-bottom: 0.5rem;\n    }\n    \n    .tonnage-calculator .form-input,\n    .tonnage-calculator .form-select {\n        width: 100%;\n        padding: 1rem;\n        border-radius: 0.5rem;\n        border: 2px solid #d1d5db;\n        background-color: #ffffff;\n        color: #111827;\n        font-size: 1rem;\n        transition: all 0.2s;\n        outline: none;\n    }\n    \n    .tonnage-calculator .form-input:focus,\n    .tonnage-calculator .form-select:focus {\n        border-color: #2563eb;\n        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);\n    }\n    \n    .tonnage-calculator .form-select {\n        cursor: pointer;\n        appearance: auto;\n    }\n    \n    .tonnage-calculator .form-hint {\n        margin-top: 0.25rem;\n        font-size: 0.875rem;\n        color: #6b7280;\n    }\n    \n    .tonnage-calculator .form-hint-value {\n        font-weight: 600;\n        color: #2563eb;\n    }\n    \n    .tonnage-calculator .input-wrapper {\n        position: relative;\n    }\n    \n    .tonnage-calculator .input-wrapper .form-input {\n        padding-right: 3.5rem;\n    }\n    \n    .tonnage-calculator .input-unit {\n        position: absolute;\n        right: 1rem;\n        top: 50%;\n        transform: translateY(-50%);\n        color: #6b7280;\n        font-weight: 500;\n        pointer-events: none;\n    }\n    \n    .tonnage-calculator .v-opening-row {\n        display: flex;\n        align-items: center;\n        gap: 0.75rem;\n    }\n    \n    .tonnage-calculator .v-opening-row .input-wrapper {\n        flex: 1;\n    }\n    \n    .tonnage-calculator .btn-auto {\n        padding: 1rem;\n        background-color: #16a34a;\n        color: #ffffff;\n        font-weight: 500;\n        border-radius: 0.5rem;\n        border: none;\n        cursor: pointer;\n        transition: all 0.2s;\n        display: flex;\n        align-items: center;\n        white-space: nowrap;\n    }\n    \n    .tonnage-calculator .btn-auto:hover {\n        background-color: #15803d;\n    }\n    \n    .tonnage-calculator .btn-auto svg {\n        width: 1.25rem;\n        height: 1.25rem;\n        margin-right: 0.25rem;\n    }\n    \n    .tonnage-calculator .recommendation-msg {\n        margin-top: 0.25rem;\n        font-size: 0.875rem;\n        color: #16a34a;\n        display: none;\n    }\n    \n    .tonnage-calculator .recommendation-msg.show {\n        display: block;\n    }\n    \n    .tonnage-calculator .btn-wrapper {\n        display: flex;\n        justify-content: center;\n    }\n    \n    .tonnage-calculator .btn-calculate {\n        padding: 0.75rem 3rem;\n        background-color: #2156dc;\n        color: #ffffff;\n        font-weight: 600;\n        border-radius: 0.5rem;\n        border: none;\n        cursor: pointer;\n        transition: all 0.2s;\n        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);\n    }\n    \n    .tonnage-calculator .btn-calculate:hover {\n        opacity: 0.9;\n        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);\n    }\n    \n    .tonnage-calculator .results-section {\n        margin-top: 2rem;\n        display: none;\n    }\n    \n    .tonnage-calculator .results-section.show {\n        display: block;\n    }\n    \n    .tonnage-calculator .results-card {\n        background: linear-gradient(to bottom right, #2563eb, #1e40af);\n        border-radius: 0.75rem;\n        padding: 1.5rem;\n        color: #ffffff;\n        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);\n    }\n    \n    .tonnage-calculator .results-title {\n        font-size: 1.125rem;\n        font-weight: 600;\n        margin-bottom: 1rem;\n        opacity: 0.9;\n    }\n    \n    .tonnage-calculator .results-grid {\n        display: grid;\n        grid-template-columns: repeat(2, 1fr);\n        gap: 1rem;\n        margin-bottom: 1rem;\n    }\n    \n    .tonnage-calculator .result-item {\n        background-color: rgba(255, 255, 255, 0.1);\n        border-radius: 0.5rem;\n        padding: 1rem;\n        text-align: center;\n    }\n    \n    .tonnage-calculator .result-label {\n        font-size: 0.875rem;\n        opacity: 0.8;\n        margin-bottom: 0.25rem;\n    }\n    \n    .tonnage-calculator .result-value {\n        font-size: 1.875rem;\n        font-weight: 700;\n    }\n    \n    .tonnage-calculator .result-unit {\n        font-size: 0.875rem;\n        opacity: 0.8;\n    }\n    \n    .tonnage-calculator .safety-warning {\n        background-color: rgba(234, 179, 8, 0.2);\n        border: 1px solid rgba(250, 204, 21, 0.5);\n        border-radius: 0.5rem;\n        padding: 1rem;\n        margin-top: 1rem;\n        display: flex;\n        align-items: flex-start;\n    }\n    \n    .tonnage-calculator .safety-warning svg {\n        width: 1.5rem;\n        height: 1.5rem;\n        color: #fde047;\n        margin-right: 0.75rem;\n        flex-shrink: 0;\n        margin-top: 0.125rem;\n    }\n    \n    .tonnage-calculator .safety-title {\n        font-weight: 600;\n        color: #fef08a;\n    }\n    \n    .tonnage-calculator .safety-text {\n        font-size: 0.875rem;\n        margin-top: 0.25rem;\n        opacity: 0.9;\n    }\n    \n    .tonnage-calculator .safety-value {\n        font-weight: 700;\n        font-size: 1.125rem;\n    }\n<\/style>\n\n<div class=\"tonnage-calculator\">\n    <h2 class=\"calc-title\">\u0627\u0644\u0622\u0644\u0629 \u0627\u0644\u062d\u0627\u0633\u0628\u0629<\/h2>\n    <div class=\"calc-card\">\n        <h3 class=\"calc-subtitle\">\n            <svg fill=\"none\" stroke=\"currentColor\" viewbox=\"0 0 24 24\">\n                <path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M9 7h6m0 10v-3m-3 3h.01M9 17h.01M9 14h.01M12 14h.01M15 11h.01M12 11h.01M9 11h.01M7 21h10a2 2 0 002-2V5a2 2 0 00-2-2H7a2 2 0 00-2 2v14a2 2 0 002 2z\"\/>\n            <\/svg>\n            \u0645\u0639\u0644\u0645\u0627\u062a \u0627\u0644\u0625\u062f\u062e\u0627\u0644\n        <\/h3>\n\n        <form id=\"tonnageCalculatorForm\" class=\"calc-form\" action=\"\">\n            <!-- Material Selection -->\n            <div class=\"form-group\">\n                <label>Material Type<\/label>\n                <select id=\"tonnageMaterial\" class=\"form-select\">\n                    <option value=\"450\">Mild Steel (\u03c3 = 450 N\/mm\u00b2)<\/option>\n                    <option value=\"700\">Stainless Steel (\u03c3 = 700 N\/mm\u00b2)<\/option>\n                    <option value=\"250\">Aluminum (\u03c3 = 250 N\/mm\u00b2)<\/option>\n                <\/select>\n                <p class=\"form-hint\">\n                    Tensile Strength: <span id=\"tonnageTensileDisplay\" class=\"form-hint-value\">450 N\/mm\u00b2<\/span>\n                <\/p>\n            <\/div>\n\n            <!-- Thickness -->\n            <div class=\"form-group\">\n                <label>Plate Thickness (T)<\/label>\n                <div class=\"input-wrapper\">\n                    <input type=\"number\" id=\"tonnageThickness\" class=\"form-input\" placeholder=\"Enter thickness\" step=\"0.1\" min=\"0.1\" required>\n                    <span class=\"input-unit\">\u0645\u0645<\/span>\n                <\/div>\n            <\/div>\n\n            <!-- Bending Length -->\n            <div class=\"form-group\">\n                <label>Bending Length (L)<\/label>\n                <div class=\"input-wrapper\">\n                    <input type=\"number\" id=\"tonnageLength\" class=\"form-input\" placeholder=\"\u0623\u062f\u062e\u0644 \u0627\u0644\u0637\u0648\u0644\" step=\"0.01\" min=\"0.01\" required>\n                    <span class=\"input-unit\">\u0645<\/span>\n                <\/div>\n            <\/div>\n\n            <!-- V-Opening -->\n            <div class=\"form-group\">\n                <label>V-Opening Width (V)<\/label>\n                <div class=\"v-opening-row\">\n                    <div class=\"input-wrapper\">\n                        <input type=\"number\" id=\"tonnageVOpening\" class=\"form-input\" placeholder=\"Enter V-opening\" step=\"0.1\" min=\"1\" required>\n                        <span class=\"input-unit\">\u0645\u0645<\/span>\n                    <\/div>\n                    <button type=\"button\" id=\"tonnageRecommendBtn\" class=\"btn-auto\">\n                        <svg fill=\"none\" stroke=\"currentColor\" viewbox=\"0 0 24 24\">\n                            <path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M13 10V3L4 14h7v7l9-11h-7z\"\/>\n                        <\/svg>\n                        Auto (T\u00d78)\n                    <\/button>\n                <\/div>\n                <p id=\"tonnageVRecommendation\" class=\"recommendation-msg\">\n                    Recommended V-opening applied!\n                <\/p>\n            <\/div>\n\n            <!-- Calculate Button -->\n            <div class=\"btn-wrapper\">\n                <button type=\"submit\" class=\"btn-calculate\">\u0627\u062d\u0633\u0628<\/button>\n            <\/div>\n        <input type=\"hidden\" name=\"trp-form-language\" value=\"ar\"\/><\/form>\n\n        <!-- Results Section -->\n        <div id=\"tonnageResultsSection\" class=\"results-section\">\n            <div class=\"results-card\">\n                <h3 class=\"results-title\">\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u062d\u0633\u0627\u0628<\/h3>\n                <div class=\"results-grid\">\n                    <div class=\"result-item\">\n                        <p class=\"result-label\">Required Tonnage<\/p>\n                        <p class=\"result-value\" id=\"tonnageResultTons\">0<\/p>\n                        <p class=\"result-unit\">Tons<\/p>\n                    <\/div>\n                    <div class=\"result-item\">\n                        <p class=\"result-label\">Force<\/p>\n                        <p class=\"result-value\" id=\"tonnageResultKN\">0<\/p>\n                        <p class=\"result-unit\">\u0643\u064a\u0644\u0648 \u0646\u064a\u0648\u062a\u0646<\/p>\n                    <\/div>\n                <\/div>\n                \n                <!-- Safety Warning -->\n                <div class=\"safety-warning\">\n                    <svg fill=\"none\" stroke=\"currentColor\" viewbox=\"0 0 24 24\">\n                        <path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z\"\/>\n                    <\/svg>\n                    <div>\n                        <p class=\"safety-title\">Safety Factor Recommendation<\/p>\n                        <p class=\"safety-text\">\n                            Recommended Machine Tonnage: <span id=\"tonnageSafetyTonnage\" class=\"safety-value\">0<\/span> Tons (+20%)\n                        <\/p>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<script>\n(function() {\n    \/\/ \u4f7f\u7528 IIFE \u9694\u79bb\u4f5c\u7528\u57df\uff0c\u907f\u514d\u53d8\u91cf\u6c61\u67d3\u5168\u5c40\n    const calculatorForm = document.getElementById('tonnageCalculatorForm');\n    const materialSelect = document.getElementById('tonnageMaterial');\n    const tensileDisplay = document.getElementById('tonnageTensileDisplay');\n    const thicknessInput = document.getElementById('tonnageThickness');\n    const lengthInput = document.getElementById('tonnageLength');\n    const vOpeningInput = document.getElementById('tonnageVOpening');\n    const recommendBtn = document.getElementById('tonnageRecommendBtn');\n    const vRecommendation = document.getElementById('tonnageVRecommendation');\n    const resultsSection = document.getElementById('tonnageResultsSection');\n    const resultTons = document.getElementById('tonnageResultTons');\n    const resultKN = document.getElementById('tonnageResultKN');\n    const safetyTonnage = document.getElementById('tonnageSafetyTonnage');\n\n    \/\/ Material Selection Handler\n    materialSelect.addEventListener('change', function(e) {\n        const tensileStrength = e.target.value;\n        tensileDisplay.textContent = tensileStrength + ' N\/mm\u00b2';\n    });\n\n    \/\/ Recommend V-Opening Button\n    recommendBtn.addEventListener('click', function() {\n        const thickness = parseFloat(thicknessInput.value);\n        if (thickness && thickness > 0) {\n            const recommendedV = thickness * 8;\n            vOpeningInput.value = recommendedV.toFixed(1);\n            vRecommendation.classList.add('show');\n            setTimeout(function() {\n                vRecommendation.classList.remove('show');\n            }, 3000);\n        } else {\n            alert('Please enter a valid thickness first.');\n        }\n    });\n\n    \/\/ Calculate Tonnage\n    function calculateTonnage(sigma, T, L, V) {\n        \/\/ Formula: P = (650 \u00d7 \u03c3 \u00d7 T\u00b2 \u00d7 L) \/ (V \u00d7 1000)\n        return (650 * sigma * Math.pow(T, 2) * L) \/ (V * 1000);\n    }\n\n    \/\/ Form Submission\n    calculatorForm.addEventListener('submit', function(e) {\n        e.preventDefault();\n\n        const sigma = parseFloat(materialSelect.value);\n        const T = parseFloat(thicknessInput.value);\n        const L = parseFloat(lengthInput.value);\n        const V = parseFloat(vOpeningInput.value);\n\n        \/\/ Validation\n        if (!T || T <= 0) {\n            alert('Please enter a valid thickness.');\n            return;\n        }\n        if (!L || L <= 0) {\n            alert('Please enter a valid bending length.');\n            return;\n        }\n        if (!V || V <= 0) {\n            alert('Please enter a valid V-opening width.');\n            return;\n        }\n\n        \/\/ Calculate\n        const tonnage = calculateTonnage(sigma, T, L, V);\n        const kN = tonnage * 9.80665; \/\/ Convert tons to kN\n        const safetyTon = tonnage * 1.2; \/\/ 20% safety factor\n\n        \/\/ Display Results\n        resultTons.textContent = tonnage.toFixed(2);\n        resultKN.textContent = kN.toFixed(2);\n        safetyTonnage.textContent = safetyTon.toFixed(2);\n\n        \/\/ Show results section\n        resultsSection.classList.add('show');\n        resultsSection.scrollIntoView({ behavior: 'smooth', block: 'nearest' });\n    });\n})();\n<\/script>","protected":false},"excerpt":{"rendered":"<p>The Air Bending Tonnage Calculator is a practical engineering tool designed to accurately estimate the required bending force when performing air bending operations on a&#8230;<\/p>","protected":false},"author":2,"featured_media":24325,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8413],"tags":[8475,287,8474],"class_list":["post-24324","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unit-and-industry-standard-conversion","tag-air-bending","tag-press-brake","tag-tonnage-calculation","pmpro-has-access"],"acf":[],"jetpack_featured_media_url":"https:\/\/www.mechstream.com\/wp-content\/uploads\/2026\/02\/Air-Bending-Tonnage-Calculator.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/posts\/24324","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/comments?post=24324"}],"version-history":[{"count":0,"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/posts\/24324\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/media\/24325"}],"wp:attachment":[{"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/media?parent=24324"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/categories?post=24324"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mechstream.com\/ar\/wp-json\/wp\/v2\/tags?post=24324"}],"curies":[{"name":"\u0648\u0648\u0631\u062f\u0628\u0631\u064a\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}