{"id":2635,"date":"2026-05-25T08:42:05","date_gmt":"2026-05-25T08:42:05","guid":{"rendered":"https:\/\/meitu-engelhardt.com\/?page_id=2635"},"modified":"2026-05-25T08:43:02","modified_gmt":"2026-05-25T08:43:02","slug":"iso-3302-1-tolerance-calculator","status":"publish","type":"page","link":"https:\/\/meitu-engelhardt.com\/de\/lsr-injection-molding\/silicone-compression-molding\/iso-3302-1-tolerance-calculator\/","title":{"rendered":"Iso-3302-1-toleranzrechner"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-0ab209c\" data-block-id=\"0ab209c\"><style>.stk-0ab209c {margin-bottom:0px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-0ab209c-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-6515daa\" data-v=\"4\" data-block-id=\"6515daa\"><style>.stk-6515daa-container{margin-top:var(--stk--preset--spacing--50, 1.5rem) !important;margin-right:var(--stk--preset--spacing--50, 1.5rem) !important;margin-bottom:var(--stk--preset--spacing--50, 1.5rem) !important;margin-left:var(--stk--preset--spacing--50, 1.5rem) !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-6515daa-container stk--no-background stk--no-padding\"><div class=\"has-text-align-center stk-block-content stk-inner-blocks stk-6515daa-inner-blocks\"><div class=\"ct-breadcrumbs\" data-source=\"rankmath\" ><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-34fc69b\" data-block-id=\"34fc69b\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-34fc69b-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-fb062f5\" data-v=\"4\" data-block-id=\"fb062f5\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-fb062f5-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-fb062f5-inner-blocks\">\n<section id=\"stc-calc-v1\">\n<style>\n#stc-calc-v1 { max-width: 1080px; margin: 0 auto; padding: 0; color: #111827; }\n#stc-calc-v1 * { box-sizing: border-box; }\n#stc-calc-v1 h2, #stc-calc-v1 h3, #stc-calc-v1 h4 {\n  font-family: inherit !important; font-weight: 700 !important; line-height: 1.25 !important;\n  margin: 0 0 8px !important; padding: 0 !important; color: #111827;\n}\n#stc-calc-v1 h3 { font-size: 18px !important; }\n#stc-calc-v1 h4 {\n  font-size: 12px !important; text-transform: uppercase; letter-spacing: 0.5px;\n  color: #545B66; font-family: 'IBM Plex Mono', monospace !important;\n}\n#stc-calc-v1 .stc-wrap { border: 1px solid #E2E5EA; background: #FFFFFF; }\n#stc-calc-v1 .stc-head { background: #111827; color: #FFFFFF; padding: 20px 24px; }\n#stc-calc-v1 .stc-head h2 { color: #FFFFFF !important; }\n#stc-calc-v1 .stc-head p { margin: 6px 0 0; font-size: 14px; color: #C7CCD4; }\n#stc-calc-v1 .stc-body { padding: 24px; }\n#stc-calc-v1 .stc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }\n#stc-calc-v1 .stc-input, #stc-calc-v1 .stc-select {\n  width: 100% !important; height: 44px !important; margin-top: 6px;\n  font-size: 14px !important; color: #111827 !important; background: #FFFFFF !important;\n  border: 1px solid #E2E5EA !important; padding: 0 12px !important;\n  -webkit-appearance: none !important; appearance: none !important; border-radius: 0 !important;\n}\n#stc-calc-v1 .stc-select option { color: #000018 !important; background: #FFFFFF !important; padding: 8px !important; }\n#stc-calc-v1 .stc-input:focus, #stc-calc-v1 .stc-select:focus { border-color: #0048F0 !important; outline: none !important; }\n#stc-calc-v1 .stc-btn {\n  margin-top: 18px; width: 100%; height: 50px; font-size: 15px; font-weight: 600;\n  color: #FFFFFF !important; background: #0048F0; border: none; cursor: pointer;\n  -webkit-appearance: none !important; appearance: none !important; border-radius: 0 !important;\n}\n#stc-calc-v1 .stc-btn:hover { background: #0036B8; }\n#stc-calc-v1 .stc-result { margin-top: 20px; border: 1px solid #E2E5EA; display: none; }\n#stc-calc-v1 .stc-result.stc-on { display: block; }\n#stc-calc-v1 .stc-out { background: #111827; color: #FFFFFF; padding: 24px 22px; text-align: center; }\n#stc-calc-v1 .stc-big { font-family: 'IBM Plex Mono', monospace; font-size: 38px; font-weight: 600; color: #6E97FF; }\n#stc-calc-v1 .stc-sub { font-size: 13px; color: #C7CCD4; margin-top: 6px; }\n#stc-calc-v1 .stc-why { padding: 16px 22px; font-size: 14px; color: #545B66; }\n#stc-calc-v1 .stc-cta {\n  display: block; margin: 0 22px 20px; padding: 13px; text-align: center;\n  background: #0048F0; color: #FFFFFF !important; text-decoration: none; font-weight: 600; font-size: 14px;\n}\n#stc-calc-v1 .stc-cta:hover { background: #0036B8; }\n#stc-calc-v1 .stc-note { font-size: 11px; color: #9AA1AC; padding: 0 24px 18px; }\n#stc-calc-v1 .stc-err { color: #C93B3B; font-size: 13px; padding: 12px 22px; }\n@media (max-width: 860px) {\n  #stc-calc-v1 .stc-grid { grid-template-columns: 1fr; }\n}\n<\/style>\n\n<div class=\"stc-wrap\">\n  <div class=\"stc-head\">\n    <h2>ISO 3302-1 Molded Silicone Tolerance Calculator<\/h2>\n    <p>Check the dimensional tolerance your compression molded part can hold by ISO 3302-1 class.<\/p>\n  <\/div>\n  <div class=\"stc-body\">\n    <div class=\"stc-grid\">\n      <div>\n        <h4>Nominal dimension (mm)<\/h4>\n        <input type=\"number\" class=\"stc-input\" id=\"stc-dim\" value=\"12\" min=\"0\" step=\"0.1\" oninput=\"stcClear()\">\n      <\/div>\n      <div>\n        <h4>Dimension type<\/h4>\n        <select class=\"stc-select\" id=\"stc-type\" onchange=\"stcClear()\">\n          <option value=\"F\" selected>Fixed (F) \u2014 one tool half<\/option>\n          <option value=\"C\">Closure (C) \u2014 across mating halves<\/option>\n        <\/select>\n      <\/div>\n      <div>\n        <h4>Tolerance class<\/h4>\n        <select class=\"stc-select\" id=\"stc-cls\" onchange=\"stcClear()\">\n          <option value=\"M1\" selected>M1 \u2014 Precision<\/option>\n          <option value=\"M2\">M2 \u2014 High grade<\/option>\n          <option value=\"M3\">M3 \u2014 General<\/option>\n          <option value=\"M4\">M4 \u2014 Coarse<\/option>\n        <\/select>\n      <\/div>\n    <\/div>\n    <button type=\"button\" class=\"stc-btn\" onclick=\"stcRun()\">Calculate Tolerance<\/button>\n\n    <div class=\"stc-err\" id=\"stc-err\" style=\"display:none;\">Enter a nominal dimension greater than 0.<\/div>\n\n    <div class=\"stc-result\" id=\"stc-result\">\n      <div class=\"stc-out\">\n        <h3 style=\"color:#FFFFFF !important;\">Achievable tolerance<\/h3>\n        <div class=\"stc-big\" id=\"stc-big\">&mdash;<\/div>\n        <div class=\"stc-sub\" id=\"stc-sub\">&mdash;<\/div>\n      <\/div>\n      <p class=\"stc-why\" id=\"stc-why\">&mdash;<\/p>\n      <a class=\"stc-cta\" href=\"#ct-popup-800\">Send Your Drawing for a Tolerance Review &rarr;<\/a>\n    <\/div>\n    <p class=\"stc-note\">Values per BS ISO 3302-1 for compression molded solid rubber. M1 is precision molding; M4 is general-purpose. Closure (C) dimensions cross two tool halves and carry a wider band than Fixed (F).<\/p>\n  <\/div>\n<\/div>\n\n<script>\nfunction stcClear() {\n  document.getElementById('stc-result').className = 'stc-result';\n  document.getElementById('stc-err').style.display = 'none';\n}\nfunction stcRun() {\n  var dim = parseFloat(document.getElementById('stc-dim').value);\n  var type = document.getElementById('stc-type').value;\n  var cls = document.getElementById('stc-cls').value;\n\n  if (isNaN(dim)) { document.getElementById('stc-err').style.display = 'block'; return; }\n  if (dim <= 0) { document.getElementById('stc-err').style.display = 'block'; return; }\n  document.getElementById('stc-err').style.display = 'none';\n\n  var bands = [4.0, 6.3, 10.0, 16.0, 25.0, 40.0, 63.0, 100.0, 160.0];\n  var fixed = {\n    M1: [0.08, 0.10, 0.10, 0.15, 0.20, 0.20, 0.25, 0.35, 0.40],\n    M2: [0.10, 0.15, 0.20, 0.20, 0.25, 0.35, 0.40, 0.50, 0.70],\n    M3: [0.25, 0.25, 0.30, 0.40, 0.50, 0.60, 0.80, 1.00, 1.30],\n    M4: [0.50, 0.50, 0.70, 0.80, 1.00, 1.30, 1.60, 2.00, 2.50]\n  };\n  var closure = {\n    M1: [0.10, 0.12, 0.15, 0.20, 0.20, 0.25, 0.35, 0.40, 0.50],\n    M2: [0.15, 0.20, 0.20, 0.25, 0.35, 0.40, 0.50, 0.70, 0.80],\n    M3: [0.40, 0.40, 0.50, 0.60, 0.80, 1.00, 1.30, 1.60, 2.00],\n    M4: [0.50, 0.50, 0.70, 0.80, 1.00, 1.30, 1.60, 2.00, 2.50]\n  };\n  var pctF = { M1: 0.3, M2: 0.5, M3: 0.8, M4: 1.5 };\n  var pctC = { M1: 0.4, M2: 0.7, M3: 1.3, M4: 1.5 };\n\n  var tol = 0;\n  var basis = '';\n\n  if (dim > 160.0) {\n    var pct = pctF[cls];\n    if (type === 'C') { pct = pctC[cls]; }\n    tol = dim * pct \/ 100;\n    tol = Math.round(tol * 100) \/ 100;\n    basis = 'Over 160 mm \u2014 tolerance is ' + pct + '% of the nominal dimension.';\n  } else {\n    var idx = 0;\n    var i = 0;\n    for (i = 0; i < bands.length; i = i + 1) {\n      if (dim <= bands[i]) { idx = i; break; }\n    }\n    var row = fixed[cls];\n    if (type === 'C') { row = closure[cls]; }\n    tol = row[idx];\n    var lo = '0';\n    if (idx > 0) { lo = String(bands[idx - 1]); }\n    basis = 'Nominal band ' + lo + ' to ' + bands[idx] + ' mm, class ' + cls + ', ' + type + ' dimension.';\n  }\n\n  var typeword = 'Fixed';\n  if (type === 'C') { typeword = 'Closure'; }\n\n  document.getElementById('stc-big').innerHTML = '&plusmn; ' + tol + ' mm';\n  document.getElementById('stc-sub').innerHTML = 'Class ' + cls + ' &middot; ' + typeword + ' dimension &middot; ' + dim + ' mm nominal';\n  document.getElementById('stc-why').innerHTML = basis + ' If this band is wider than your design needs, a tighter class or a Fixed-dimension layout may be possible \u2014 Engelhardt confirms an achievable class against your drawing before the mold is cut.';\n  document.getElementById('stc-result').className = 'stc-result stc-on';\n}\n<\/script>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>ISO 3302-1 Molded Silicone Tolerance Calculator Check the dimensional tolerance your compression molded part can hold by ISO 3302-1 class. Nominal dimension (mm) Dimension type Fixed (F) \u2014 one tool halfClosure (C) \u2014 across mating halves Tolerance class M1 \u2014 PrecisionM2 \u2014 High gradeM3 \u2014 GeneralM4 \u2014 Coarse Calculate Tolerance Enter a nominal dimension greater [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":2584,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-2635","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/pages\/2635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/comments?post=2635"}],"version-history":[{"count":0,"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/pages\/2635\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/pages\/2584"}],"wp:attachment":[{"href":"https:\/\/meitu-engelhardt.com\/de\/wp-json\/wp\/v2\/media?parent=2635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}