{"id":1005,"date":"2025-04-03T11:01:17","date_gmt":"2025-04-03T03:01:17","guid":{"rendered":"https:\/\/hengoseal.com\/?p=1005"},"modified":"2025-06-03T14:38:27","modified_gmt":"2025-06-03T06:38:27","slug":"how-to-measure-hydraulic-seals","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/it\/how-to-measure-hydraulic-seals\/","title":{"rendered":"Come misurare le guarnizioni idrauliche per una sostituzione perfetta?"},"content":{"rendered":"<p>Ordinare la misura sbagliata della guarnizione pu\u00f2 ritardare la riparazione, costarti soldi e, cosa peggiore, lasciare la macchina ferma per giorni. Ho fatto questo errore e non voglio che lo faccia anche tu.<\/p>\n<p>Per misurare correttamente una guarnizione idraulica, \u00e8 necessario registrare la <strong>diametro interno (ID)<\/strong>, <strong>diametro esterno (OD)<\/strong>, E <strong>larghezza della sezione trasversale<\/strong>Per garantire un corretto adattamento, queste dimensioni devono corrispondere alla scanalatura del cilindro.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/04\/webp.webp\" alt=\"placeholder_image\" \/><\/p>\n<p>Let me walk you through how I measure seals in my daily work\u2014and how you can avoid common errors, even without fancy equipment.<\/p>\n<h2>What tools do I need to measure a hydraulic seal accurately?<\/h2>\n<p>Without the right tools, seal measurement turns into guesswork. And guesswork leads to leaks.<\/p>\n<p>In my toolbox, I always keep:<\/p>\n<ul>\n<li>Digital caliper (0.01 mm accuracy)<\/li>\n<li>Superficie piana o piastra d&#039;acciaio<\/li>\n<li>Clean cloth for oil removal<\/li>\n<li>Backup: vernier caliper<\/li>\n<li>Notepad or printable measurement form<\/li>\n<\/ul>\n<p>These tools help me measure every seal\u2014whether it\u2019s brand new or worn beyond recognition.<\/p>\n<table>\n<thead>\n<tr>\n<th>Attrezzo<\/th>\n<th>Scopo<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Calibro digitale<\/td>\n<td>ID, OD, and width measurement<\/td>\n<\/tr>\n<tr>\n<td>Piatto piano<\/td>\n<td>Ensures seal lies flat for accuracy<\/td>\n<\/tr>\n<tr>\n<td>Stoffa<\/td>\n<td>Wipe away residue before measuring<\/td>\n<\/tr>\n<tr>\n<td>Seal Form<\/td>\n<td>Record specs for matching and quote<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If you're working with standard sizes, check out our <a href=\"https:\/\/hengoseal.com\/it\/prodotto\/hydraulic-seal-kit-by-size\/\" target=\"_blank\">hydraulic seal kits by size<\/a> to simplify reordering.<\/p>\n<h2>How do I measure a worn or damaged hydraulic seal?<\/h2>\n<p>Measuring worn seals is tricky, but not impossible. The key is cleaning and consistency.<\/p>\n<p>Here\u2019s my step-by-step:<\/p>\n<ol>\n<li>Wipe the seal with alcohol and cloth<\/li>\n<li>Lay it flat on a smooth surface<\/li>\n<li>Measure ID, OD, and width three times from different points<\/li>\n<\/ol>\n<p>If the seal has lost shape, I average the numbers. Recently I matched a distorted seal at 45x56x7 mm\u2014perfectly aligned with our <a href=\"https:\/\/hengoseal.com\/it\/prodotto\/un-hydraulic-seal\/\" target=\"_blank\">Guarnizione idraulica UN<\/a> line.<\/p>\n<p>For damaged or incomplete samples, take a clear photo with a ruler next to it and send it to us\u2014we\u2019ll identify the closest match fast.<\/p>\n<h2>Can I measure directly from the cylinder groove?<\/h2>\n<p>Yes\u2014and it\u2019s often more accurate if the old seal is missing or destroyed.<\/p>\n<p>Here\u2019s how I do it:<\/p>\n<ul>\n<li>Misura <strong>groove width<\/strong> to match seal width<\/li>\n<li>Misura <strong>groove ID or OD<\/strong> (depending on rod or piston side)<\/li>\n<li>Optionally, check groove <strong>depth<\/strong> for compatibility with single\/double-lip seals<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Groove Feature<\/th>\n<th>Measurement Tool<\/th>\n<th>Seal Correspondence<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Larghezza<\/td>\n<td>Calibro digitale<\/td>\n<td>Seal Width<\/td>\n<\/tr>\n<tr>\n<td>Diametro<\/td>\n<td>ID\/OD Gauges<\/td>\n<td>Rod or Piston Match<\/td>\n<\/tr>\n<tr>\n<td>Profondit\u00e0<\/td>\n<td>Depth Micrometer<\/td>\n<td>Lip Fit, Seal Retention<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Need a sizing guide for grooves? Contact us by whatsapp or mail.<\/p>\n<h2>What if I can\u2019t identify the seal type?<\/h2>\n<p>Don\u2019t worry\u2014it happens to most professionals at some point.<\/p>\n<p>Here\u2019s what to send us:<\/p>\n<ul>\n<li>Clear photos of the seal (front, side, installed)<\/li>\n<li>Machine brand and model info<\/li>\n<li>All three dimensions: ID, OD, and width<\/li>\n<li>Optional: drawing or part number<\/li>\n<\/ul>\n<p>We\u2019ve matched thousands of seals for everything from forklift cylinders in Chile to mining machinery in Kazakhstan. Often, it's just about matching profiles like <a href=\"https:\/\/hengoseal.com\/it\/prodotto\/kdas-compact-seal\/\" target=\"_blank\">Il rapporto KDAS<\/a>, <a href=\"https:\/\/hengoseal.com\/it\/prodotto\/idu-odu-piston-seal\/\" target=\"_blank\">IDU<\/a>, O <a href=\"https:\/\/hengoseal.com\/it\/prodotto\/un-hydraulic-seal\/\" target=\"_blank\">ONU<\/a>.<\/p>\n<p>If you're running a service team, ask us about our printable spec sheet for field techs.<\/p>\n<h2>How to choose the correct hydraulic seal size?<\/h2>\n<p>Use this checklist:<\/p>\n<ul>\n<li>Clean the seal completely before measuring<\/li>\n<li>Record all three dimensions: ID, OD, width<\/li>\n<li>When in doubt, measure the groove\u2014not the seal<\/li>\n<li>If old seal is distorted, average the numbers<\/li>\n<li>Send a photo with a scale or ruler for verification<\/li>\n<\/ul>\n<p>Once you\u2019ve got the specs, match with our <a href=\"https:\/\/hengoseal.com\/it\/hydraulic-seals\/\" target=\"_blank\">hydraulic seal product range<\/a> or send it to us for confirmation.<\/p>\n<h2>Conclusione<\/h2>\n<p>The right seal starts with the right measurement. A few millimeters can make or break your system. Use accurate tools, follow a step-by-step approach, and lean on suppliers like us when you're unsure.<\/p>\n<h2>Ready to get it right?<\/h2>\n<p>Hai bisogno di aiuto per misurare o abbinare una guarnizione idraulica?<br \/>\n\ud83d\udce7 E-mail: info@hengoseal.com<br \/>\n\ud83d\udcf1 WhatsApp: +86 17622979498<br \/>\nRispondiamo rapidamente e supportiamo le partite tramite foto, campioni o disegni.<\/p>\n<h2>Related topic<\/h2>\n<p><a href=\"https:\/\/hengoseal.com\/it\/prodotto\/un-hydraulic-seal\/\" target=\"_blank\">Guarnizione idraulica UN<\/a><br \/>\n<a href=\"https:\/\/hengoseal.com\/it\/blog\/how-to-choose-hydraulic-seal-kits-by-size\/\" target=\"_blank\">How to Choose Hydraulic Seal Kits by Size<\/a><br \/>\n<a href=\"https:\/\/hengoseal.com\/it\/prodotto\/hydraulic-seal-kit-by-size\/\" target=\"_blank\">Kit di guarnizioni idrauliche per dimensione<\/a><\/p>\n<style>\n.faq-question {\ncursor: pointer;\nfont-weight: bold;\npadding: 10px;\nbackground-color: #f1f1f1;\nborder: 1px solid #ddd;\nmargin-bottom: 5px;\ncolor: #0073aa;\n}\n.faq-answer {\ndisplay: none;\npadding: 10px;\nborder-left: 3px solid #0073aa;\nbackground-color: #f9f9f9;\nmargin-bottom: 10px;\n}\n<\/style>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\nconst questions = document.querySelectorAll('.faq-question');\nquestions.forEach(question => {\nquestion.addEventListener('click', function() {\nconst answer = this.nextElementSibling;\nanswer.style.display = answer.style.display === 'block' ? 'none' : 'block';\n});\n});\n});\n<\/script><br \/>\n<!-- JSON-LD FAQ Schema --><br \/>\n<script type=\"application\/ld+json\">\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"What&rsquo;s the most important dimension when measuring a seal?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"All three&mdash;ID, OD, and width&mdash;are essential. Missing one can cause mismatch or leakage.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I send a seal photo instead of measuring?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes. We match seals from photos daily. Just include a ruler or caliper for scale reference.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How accurate do my measurements need to be?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Within 0.1 mm is ideal. But we can still help if your caliper reads to 0.5 mm.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What if the seal is broken or incomplete?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Send whatever pieces you have, plus groove sizes. We can often identify the profile and size.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do I measure the inside or outside of the groove?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Measure both: inside (for ID), outside (for OD), and width. These match seal specs.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can you help measure from a cylinder drawing?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Absolutely. Send the drawing or screenshot with labeled dimensions&mdash;we&rsquo;ll match the seal for you.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do you offer seal gauges?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"We offer size charts and can supply custom gauges upon request (MOQ applies).\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How long does it take to match a seal by size?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Typically under 12 hours. For in-stock sizes, we can quote and ship same-day.\"\n}\n}\n]\n}\n<\/script><\/p>\n<h2>Le persone chiedono anche<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. Qual \u00e8 la dimensione pi\u00f9 importante quando si misura una guarnizione?<\/div>\n<div class=\"faq-answer\">Tutti e tre (ID, OD e larghezza) sono essenziali. La mancanza di uno pu\u00f2 causare incongruenze o perdite.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. Posso inviare una foto del sigillo invece di misurarlo?<\/div>\n<div class=\"faq-answer\">S\u00ec. Ogni giorno confrontiamo i sigilli con le foto. Basta includere un righello o un calibro per riferimento di scala.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. Quanto devono essere precise le mie misurazioni?<\/div>\n<div class=\"faq-answer\">Entro 0,1 mm \u00e8 l&#039;ideale. Ma possiamo comunque aiutarti se il tuo calibro segna fino a 0,5 mm.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. Cosa succede se il sigillo \u00e8 rotto o incompleto?<\/div>\n<div class=\"faq-answer\">Inviateci tutti i pezzi che avete, pi\u00f9 le dimensioni delle scanalature. Spesso possiamo identificare il profilo e le dimensioni.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. Devo misurare l&#039;interno o l&#039;esterno della scanalatura?<\/div>\n<div class=\"faq-answer\">Misura entrambi: interno (per ID), esterno (per OD) e larghezza. Questi corrispondono alle specifiche della guarnizione.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. Puoi aiutarmi a misurare partendo da un disegno cilindrico?<\/div>\n<div class=\"faq-answer\">Assolutamente. Invia il disegno o lo screenshot con le dimensioni etichettate: faremo corrispondere il sigillo per te.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. Offrite indicatori di tenuta?<\/div>\n<div class=\"faq-answer\">Offriamo tabelle delle taglie e possiamo fornire calibri personalizzati su richiesta (si applica un minimo quantitativo).<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. Quanto tempo ci vuole per adattare una guarnizione in base alle dimensioni?<\/div>\n<div class=\"faq-answer\">In genere meno di 12 ore. Per le taglie in stock, possiamo quotare e spedire in giornata.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ordinare una guarnizione di dimensioni sbagliate pu\u00f2 ritardare la riparazione, costare denaro e, cosa peggiore, lasciare la macchina ferma per [\u2026]<\/p>","protected":false},"author":1,"featured_media":1006,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[38],"tags":[],"class_list":["post-1005","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hydraulic-seals"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/posts\/1005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/comments?post=1005"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/posts\/1005\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/media\/1006"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/media?parent=1005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/categories?post=1005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/it\/wp-json\/wp\/v2\/tags?post=1005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}