{"id":16986,"date":"2026-05-07T09:24:56","date_gmt":"2026-05-07T09:24:56","guid":{"rendered":"https:\/\/www.dgcrane.com\/?p=16986"},"modified":"2026-05-07T10:01:24","modified_gmt":"2026-05-07T10:01:24","slug":"crane-hoist-wire-rope-replacement-calculator","status":"publish","type":"post","link":"https:\/\/www.dgcrane.com\/it\/crane-hoist-wire-rope-replacement-calculator\/","title":{"rendered":"Calcolatrice per la sostituzione della fune metallica per paranchi di gru"},"content":{"rendered":"<div id=\"calculator\">\n\n  <div class=\"calc-group\">\n    <label for=\"calculator-ropeType\">Tipo di fune metallica<\/label>\n    <select id=\"calculator-ropeType\" class=\"calc-input\">\n      <option value=\"fc\">Corda monostrato con anima in fibra (FC)<\/option>\n      <option value=\"iwrc\">Corda monostrato con anima in acciaio (IWRC)<\/option>\n      <option value=\"rotation\">corda resistente alla rotazione<\/option>\n    <\/select>\n  <\/div>\n\n  <div class=\"calc-group\">\n    <label for=\"calculator-nominalD\">Diametro nominale d (mm)<\/label>\n    <input type=\"number\" step=\"0.1\" id=\"calculator-nominalD\" class=\"calc-input\" data-required=\"true\">\n    <div class=\"error-msg\" id=\"error-nominalD\">Inserisci un numero positivo valido<\/div>\n  <\/div>\n\n  <div class=\"calc-group\">\n    <label for=\"calculator-refD\">Diametro di riferimento d<sub>rif.<\/sub> (mm)<\/label>\n    <input type=\"number\" step=\"0.1\" id=\"calculator-refD\" class=\"calc-input\" data-required=\"true\">\n    <div class=\"error-msg\" id=\"error-refD\">Inserisci un numero positivo valido<\/div>\n  <\/div>\n\n  <div class=\"calc-group\">\n    <label for=\"calculator-measuredD\">Diametro misurato d<sub>M<\/sub> (mm)<\/label>\n    <input type=\"number\" step=\"0.1\" id=\"calculator-measuredD\" class=\"calc-input\" data-required=\"true\">\n    <div class=\"error-msg\" id=\"error-measuredD\">Inserisci un numero positivo valido<\/div>\n  <\/div>\n\n  <div class=\"calc-buttons\">\n    <button type=\"button\" id=\"calculator-calculate\" class=\"calc-btn primary\">Calcola e valuta<\/button>\n    <button type=\"button\" id=\"calculator-reset\" class=\"calc-btn reset\">Reset<\/button>\n  <\/div>\n\n  <div class=\"calc-result\" id=\"calculator-result\" style=\"display: none;\">\n    <div class=\"result-title\">Risultato della valutazione<\/div>\n    <div class=\"result-item\">\n      <span class=\"result-label\">Riduzione del diametro:<\/span>\n      <span class=\"result-value\" id=\"result-q\"><\/span>\n    <\/div>\n    <div class=\"result-item\">\n      <span class=\"result-label\">Intervallo di danno:<\/span>\n      <span class=\"result-value\" id=\"result-percent\"><\/span>\n    <\/div>\n    <div class=\"result-item\">\n      <span class=\"result-label\">Livello di danno:<\/span>\n      <span class=\"result-value\" id=\"result-level\"><\/span>\n    <\/div>\n    <div class=\"result-item\">\n      <span class=\"result-label\">Stato di utilizzo:<\/span>\n      <span class=\"result-value\" id=\"result-status\"><\/span>\n    <\/div>\n    <div class=\"result-item\">\n      <span class=\"result-label\">Azione consigliata:<\/span>\n      <span class=\"result-text\" id=\"result-action\"><\/span>\n    <\/div>\n  <\/div>\n\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: Arial, sans-serif;\n      color: var(--text-color);\n    }\n    #calculator * {\n      margin: 0;\n      padding: 0;\n      box-sizing: border-box;\n      transition: all 0.2s ease;\n    }\n    #calculator .calc-header {\n      font-size: 18px;\n      font-weight: bold;\n      text-align: center;\n      margin-bottom: 15px;\n      color: var(--primary-color);\n    }\n    #calculator .calc-formula {\n      text-align: center;\n      font-size: 14px;\n      margin-bottom: 20px;\n    }\n    #calculator .calc-group {\n      margin-bottom: 18px;gap:inherit;\n    }\n    #calculator label {\n      display: block;\n      font-size: 14px;\n      margin-bottom: 6px;\n      font-weight: 500;\n    }\n    #calculator .calc-input {\n      width: 100%;\n      height: 36px;\n      border-radius: 0;\n      border: 1px solid #ccc;\n      padding: 0 10px;\n      font-size: 16px;\n      outline: none;\n    }\n    #calculator .calc-input:focus {\n      border: 2px solid var(--primary-color);\n    }\n    #calculator .calc-input.error {\n      border: 2px solid var(--error-color) !important;\n    }\n    #calculator .error-msg {\n      display: none;\n      font-size: 12px;\n      color: var(--error-color);\n      margin-top: 4px;\n    }\n    #calculator .error-msg.show {\n      display: block;\n    }\n    #calculator .calc-buttons {\n      display: flex;\n      gap: 12px;\n      margin: 25px 0;\n    }\n    #calculator .calc-btn {\n      flex: 1;\n      height: 34px;\n      line-height: 34px;\n      border-radius: 0;\n      border: none;\n      font-size: 14px;\n      cursor: pointer;\n      text-align: center;\n    }\n    #calculator .calc-btn.primary {\n      background: var(--primary-color);\n      color: #fff;\n    }\n    #calculator .calc-btn.primary:hover {\n      background: var(--primary-hover);\n    }\n    #calculator .calc-btn.reset {\n      background: #ccc;\n      color: var(--text-color);\n    }\n    #calculator .calc-btn.reset:hover {\n      background: #bbb;\n    }\n    #calculator .calc-result {\n      border-top: 1px solid #ccc;\n      padding-top: 20px;\n    }\n    #calculator .result-title {\n      font-size: 18px;\n      font-weight: bold;\n      text-align: center;\n      margin-bottom: 15px;\n      color: var(--primary-color);\n    }\n    #calculator .result-item {\n      display: flex;\n      margin-bottom: 10px;\n      align-items: center;\n    }\n    #calculator .result-label {\n      width: 180px;\n      font-size: 14px;\n      font-weight: 500;\n    }\n    #calculator .result-value {\n      font-size: 16px;\n      font-weight: bold;\n    }\n    #calculator .result-text {\n      font-size: 14px;\n      line-height: 1.4;\n    }\n    #calculator .level-normal { color: #2e7d32; }\n    #calculator .level-warning { color: #f57f17; }\n    #calculator .level-danger { color: var(--error-color); }\n\n    @media (max-width: 768px) {\n      #calculator {\n        padding: 20px;\n      }\n      #calculator .calc-input,\n      #calculator .calc-btn {\n        height: 0.7rem;\n        font-size: 0.28rem;\n      }\n      #calculator .calc-buttons {\n        flex-direction: column;\n        gap: 10px;\n      }\n      #calculator .calc-btn {\n        width: 100%;\n      }\n      #calculator label,\n      #calculator .result-label,\n      #calculator .result-text {\n        font-size: 0.28rem;\n      }\n      #calculator .result-value {\n        font-size: 0.32rem;\n      }\n      #calculator .calc-header,\n      #calculator .result-title {\n        font-size: 0.36rem;\n      }\n    }\n  <\/style>\n\n  <script>\n    (function() {\n      const standards = {\n        fc: [\n          { min:0, max:6, percent:0, level:\"No Damage\", status:\"Safe for Use\", action:\"Routine inspection\" },\n          { min:6, max:7, percent:20, level:\"Slight\", status:\"Safe for Use\", action:\"Increase inspection frequency\" },\n          { min:7, max:8, percent:40, level:\"Medium\", status:\"Close Monitoring\", action:\"Prepare replacement plan\" },\n          { min:8, max:9, percent:60, level:\"Severe\", status:\"Close Monitoring\", action:\"Control load strictly\" },\n          { min:9, max:10, percent:80, level:\"Severe\", status:\"Recommended Discard\", action:\"Replace as soon as possible\" },\n          { min:10, max:Infinity, percent:100, level:\"Severe\", status:\"Must Discard\", action:\"Stop use immediately\" }\n        ],\n        iwrc: [\n          { min:0, max:3.5, percent:0, level:\"No Damage\", status:\"Safe for Use\", action:\"Routine inspection\" },\n          { min:3.5, max:4.5, percent:20, level:\"Slight\", status:\"Safe for Use\", action:\"Increase inspection frequency\" },\n          { min:4.5, max:5.5, percent:40, level:\"Medium\", status:\"Close Monitoring\", action:\"Prepare replacement plan\" },\n          { min:5.5, max:6.5, percent:60, level:\"Severe\", status:\"Close Monitoring\", action:\"Control load strictly\" },\n          { min:6.5, max:7.5, percent:80, level:\"Severe\", status:\"Recommended Discard\", action:\"Replace as soon as possible\" },\n          { min:7.5, max:Infinity, percent:100, level:\"Severe\", status:\"Must Discard\", action:\"Stop use immediately\" }\n        ],\n        rotation: [\n          { min:0, max:1, percent:0, level:\"No Damage\", status:\"Safe for Use\", action:\"Routine inspection\" },\n          { min:1, max:2, percent:20, level:\"Medium\", status:\"Safe for Use\", action:\"Increase inspection frequency\" },\n          { min:2, max:3, percent:40, level:\"Medium\", status:\"Close Monitoring\", action:\"Prepare replacement plan\" },\n          { min:3, max:4, percent:60, level:\"Severe\", status:\"Close Monitoring\", action:\"Control load strictly\" },\n          { min:4, max:5, percent:80, level:\"Severe\", status:\"Recommended Discard\", action:\"Replace as soon as possible\" },\n          { min:5, max:Infinity, percent:100, level:\"Severe\", status:\"Must Discard\", action:\"Stop use immediately\" }\n        ]\n      };\n\n      const el = (id) => document.getElementById(`calculator-${id}`);\n      const err = (id) => document.getElementById(`error-${id}`);\n      const inputs = ['nominalD', 'refD', 'measuredD'];\n\n      function setError(fieldId, msg) {\n        const input = el(fieldId);\n        const errorEl = err(fieldId);\n        input.classList.add('error');\n        errorEl.textContent = msg;\n        errorEl.classList.add('show');\n      }\n\n      function clearError(fieldId) {\n        const input = el(fieldId);\n        const errorEl = err(fieldId);\n        input.classList.remove('error');\n        errorEl.classList.remove('show');\n      }\n\n      function validateInput() {\n        let valid = true;\n        inputs.forEach(field => {\n          const val = parseFloat(el(field).value);\n          if (isNaN(val) || val <= 0) {\n            setError(field, 'Please enter a valid positive number');\n            valid = false;\n          } else {\n            clearError(field);\n          }\n        });\n        return valid;\n      }\n\n      function bindInputClear() {\n        inputs.forEach(field => {\n          el(field).addEventListener('input', () => clearError(field));\n        });\n      }\n\n      function calculate() {\n        if (!validateInput()) return;\n        const type = el('ropeType').value;\n        const d = parseFloat(el('nominalD').value);\n        const dRef = parseFloat(el('refD').value);\n        const dM = parseFloat(el('measuredD').value);\n\n        const Q = Math.abs(((dRef - dM) \/ d) * 100);\n        const qFixed = Q.toFixed(2);\n        const rules = standards[type];\n        let res = rules.find(r => Q >= r.min && Q < r.max) || rules[rules.length - 1];\n\n        const resultEl = document.getElementById('calculator-result');\n        document.getElementById('result-q').textContent = `${qFixed}%`;\n        document.getElementById('result-percent').textContent = `${res.percent}%`;\n        document.getElementById('result-level').textContent = res.level;\n        document.getElementById('result-status').textContent = res.status;\n        document.getElementById('result-action').textContent = res.action;\n\n        const levelCls = res.status.includes('Safe') ? 'level-normal' : res.status.includes('Monitoring') ? 'level-warning' : 'level-danger';\n        document.getElementById('result-level').className = 'result-value ' + levelCls;\n        document.getElementById('result-status').className = 'result-value ' + levelCls;\n\n        resultEl.style.display = 'block';\n      }\n\n      function resetForm() {\n        inputs.forEach(field => {\n          el(field).value = '';\n          clearError(field);\n        });\n        el('ropeType').selectedIndex = 0;\n        document.getElementById('calculator-result').style.display = 'none';\n      }\n\n      function init() {\n        bindInputClear();\n        el('calculate').addEventListener('click', calculate);\n        el('reset').addEventListener('click', resetForm);\n      }\n\n      window.addEventListener('DOMContentLoaded', init);\n    })();\n  <\/script>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Formula per la sostituzione della fune metallica del paranco<\/h2>\n\n\n\n<p><strong>Q=[ (d<sub>rif.<\/sub>-D<sub>M<\/sub>) \/d ]*100%<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D<sub>rif.<\/sub><\/strong>: il diametro di riferimento<\/li>\n\n\n\n<li><strong>D<sub>M<\/sub>: <\/strong>il diametro misurato<\/li>\n\n\n\n<li><strong>D:<\/strong> il diametro nominale<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Note importanti e consigli di sicurezza<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Questo strumento \u00e8 concepito come strumento di valutazione ausiliario per fornire dati di riferimento preliminari e rapidi.<\/li>\n\n\n\n<li>Per garantire la sicurezza delle attrezzature di sollevamento, \u00e8 necessaria un&#39;ispezione completa e periodica.<\/li>\n\n\n\n<li>Interrompere immediatamente l&#39;operazione al raggiungimento dello standard di scarto critico.<\/li>\n\n\n\n<li>Durante l&#39;utilizzo delle funi, evitare sovraccarichi, piegamenti bruschi e forti compressioni.<\/li>\n\n\n\n<li>Una lubrificazione regolare pu\u00f2 rallentare efficacemente l&#39;usura delle funi metalliche.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ambito di applicazione<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Paranchi elettrici a fune<\/li>\n\n\n\n<li>Paranchi manuali a fune<\/li>\n\n\n\n<li>Argani<\/li>\n\n\n\n<li>Gruppi di pulegge<\/li>\n\n\n\n<li>Gru a ponte<\/li>\n\n\n\n<li>Gru a cavalletto<\/li>\n\n\n\n<li>Gru mobili<\/li>\n\n\n\n<li>Gru portuali<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Prodotti e scenari non idonei<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>attrezzature di sollevamento non a gru<\/strong>: Ascensori, giostre, piattaforme di lavoro aeree (si applicano norme separate)<\/li>\n\n\n\n<li><strong>Sistemi speciali di funi in fibra sintetica<\/strong>Cinghie in fibra sintetica, cinghie in tessuto (con diverse propriet\u00e0 dei materiali)<\/li>\n\n\n\n<li><strong>Tamburi di avvolgimento monostrato con pulegge in materiale sintetico o rivestimenti delle scanalature delle pulegge<\/strong><\/li>\n\n\n\n<li><strong>Applicazioni non di sollevamento<\/strong>Funivie, ponti sospesi, linee di trasmissione elettrica (diversi meccanismi di sollecitazione)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"Il calcolatore per la sostituzione delle funi metalliche per paranchi, sviluppato in conformit\u00e0 alla norma ISO 4309:2017, \u00e8 pienamente conforme alle specifiche di settore. Consente di calcolare in modo rapido e preciso il tasso di usura del diametro della fune metallica, di individuare automaticamente il livello di scarto, di semplificare il processo di ispezione di conformit\u00e0 e di individuare tempestivamente i punti di sostituzione per evitare perdite dovute a fermi macchina e rischi per la sicurezza.","protected":false},"author":8,"featured_media":16988,"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":[63],"tags":[],"class_list":["post-16986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-other"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/posts\/16986"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/comments?post=16986"}],"version-history":[{"count":8,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/posts\/16986\/revisions"}],"predecessor-version":[{"id":16998,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/posts\/16986\/revisions\/16998"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/media\/16988"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/media?parent=16986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/categories?post=16986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/it\/wp-json\/wp\/v2\/tags?post=16986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}