{"id":774,"date":"2025-03-06T14:48:13","date_gmt":"2025-03-06T06:48:13","guid":{"rendered":"https:\/\/hengoseal.com\/?p=774"},"modified":"2025-05-03T20:03:06","modified_gmt":"2025-05-03T12:03:06","slug":"5-problems-with-pneumatic-cylinder-seals","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/es\/5-problems-with-pneumatic-cylinder-seals\/","title":{"rendered":"5 Common Problems with Pneumatic Cylinder Seals &#038; How to Fix Them (2025)"},"content":{"rendered":"<p>Seal failure leads to leaks, downtime, and inefficiency\u2014yet most are preventable.<br \/>\nHere are five common pneumatic seal issues and how to fix them with the right materials, techniques, and upgrades.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/03\/QYD-Pneumatic-Cylinder-Seals.png\" alt=\"placeholder_image\" \/><\/p>\n<p>From material selection to maintenance tips, this guide helps you extend seal life and boost system performance.<\/p>\n<h2>Why Do Pneumatic Cylinder Seals Fail So Often?<\/h2>\n<p>Improper use or material mismatch is the root of most failures.<\/p>\n<p>Worn seals, wrong sizing, or incorrect installation can lead to major pressure loss and poor efficiency. Understanding how seals degrade helps prevent downtime.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/03\/E4-Pneumatic-Cylinder-Seals.png\" alt=\"placeholder_image\" \/><\/p>\n<p>For an overview of pneumatic seal types and their roles, read the full <a href=\"https:\/\/hengoseal.com\/es\/pneumatic-cylinder-seals-guide-2025\/\" target=\"_blank\">pneumatic cylinder seals guide<\/a>.<\/p>\n<h2>How Do You Fix Air Leakage Around the Rod or Piston?<\/h2>\n<p>Air leakage is the most common issue in pneumatic systems.<\/p>\n<p><strong>Causas:<\/strong><\/p>\n<ul>\n<li>Sellos de pist\u00f3n o de biela desgastados<\/li>\n<li>Instalaci\u00f3n incorrecta<\/li>\n<li>Using incompatible materials<\/li>\n<\/ul>\n<p><strong>Fixes:<\/strong><\/p>\n<ul>\n<li>Replace seals with <a href=\"https:\/\/hengoseal.com\/es\/producto\/un-hydraulic-seal\/\" target=\"_blank\">TPU or NBR rod seals<\/a><\/li>\n<li>Follow OEM install specs<\/li>\n<li>Use FKM or PTFE in high-temp\/chemical systems<\/li>\n<\/ul>\n<h2>Why Do Seals Wear Out Prematurely?<\/h2>\n<p>Seals should last for thousands of cycles\u2014when they don\u2019t, something's wrong.<\/p>\n<p><strong>Causas:<\/strong><\/p>\n<ul>\n<li>Dry operation or no lubrication<\/li>\n<li>Dust, dirt, or water contamination<\/li>\n<li>Incorrect sizing<\/li>\n<\/ul>\n<p><strong>Fixes:<\/strong><\/p>\n<ul>\n<li>Apply synthetic seal-compatible lubricants  <\/li>\n<li>Usar <a href=\"https:\/\/hengoseal.com\/es\/producto\/dust-wiper-seals-for-pneumatic-cylinders\/\" target=\"_blank\">sellos limpiaparabrisas<\/a> to block debris  <\/li>\n<li>Size seals based on cylinder specs<\/li>\n<\/ul>\n<p>For common size options, review our <a href=\"https:\/\/hengoseal.com\/es\/how-to-measure-hydraulic-seals\/\" target=\"_blank\">seal measurement guide<\/a>.<\/p>\n<h2>What Causes Excessive Friction or Seal Hardening?<\/h2>\n<p>Too much friction increases energy use and shortens seal life.<\/p>\n<p><strong>Causas:<\/strong><\/p>\n<ul>\n<li>Sellos demasiado apretados<\/li>\n<li>Seal material not matched to environment<\/li>\n<li>Running dry without lubricant<\/li>\n<\/ul>\n<p><strong>Fixes:<\/strong><\/p>\n<ul>\n<li>Switch to <a href=\"https:\/\/hengoseal.com\/es\/high-performance-pneumatic-seals\/\" target=\"_blank\">low-friction TPU or PTFE<\/a>  <\/li>\n<li>Agregar <a href=\"https:\/\/hengoseal.com\/es\/producto\/buffer-seals-cushion-rings\/\" target=\"_blank\">sellos de amortiguaci\u00f3n<\/a> for shock absorption  <\/li>\n<li>Maintain with regular lubricant inspection<\/li>\n<\/ul>\n<h2>How Do You Fix Pressure Loss and Low Efficiency?<\/h2>\n<p>Loss of air pressure lowers cylinder response speed and accuracy.<\/p>\n<p><strong>Causas:<\/strong><\/p>\n<ul>\n<li>Seal micro-leakage<\/li>\n<li>Bore wear<\/li>\n<li>Improper seal profile<\/li>\n<\/ul>\n<p><strong>Fixes:<\/strong><\/p>\n<ul>\n<li>Upgrade to FKM or TPU materials  <\/li>\n<li>Inspect bore and rod condition  <\/li>\n<li>Use double-acting piston seals like Z8 or COP<\/li>\n<\/ul>\n<p>For seal material behavior, check the <a href=\"https:\/\/hengoseal.com\/es\/material-for-pneumatic-cylinder-seals\/\" target=\"_blank\">pneumatic seal material guide<\/a>.<\/p>\n<h2>What Causes Seal Swelling or Shrinking?<\/h2>\n<p>Temperature and chemical exposure can physically deform seals.<\/p>\n<p><strong>Causas:<\/strong><\/p>\n<ul>\n<li>Non-compatible material<\/li>\n<li>Chemical swelling<\/li>\n<li>Thermal expansion<\/li>\n<\/ul>\n<p><strong>Fixes:<\/strong><\/p>\n<ul>\n<li>Choose FKM or PTFE for high-temp\/chemical resistance  <\/li>\n<li>Avoid NBR in solvent-heavy systems  <\/li>\n<li>Replace aged or brittle seals immediately<\/li>\n<\/ul>\n<h2>Where to Buy Reliable Pneumatic Seals?<\/h2>\n<p>Ofrecemos:<\/p>\n<ul>\n<li>Piston, rod, buffer &amp; dust seals<\/li>\n<li>Materiales: NBR, TPU, FKM, PTFE<\/li>\n<li>OEM specs and custom options<\/li>\n<\/ul>\n<p>\ud83d\udce9 Correo electr\u00f3nico: info@hengoseal.com<br \/>\nWhatsApp: +86 17622979498<\/p>\n<h2>Conclusi\u00f3n<\/h2>\n<p>Solve air leaks, wear, and pressure loss by choosing the right pneumatic seals and maintaining them properly.<\/p>\n<h2>Browse Related Guides<\/h2>\n<ul>\n<li><a href=\"https:\/\/hengoseal.com\/es\/extend-pneumatic-seal-lifespan\/\" target=\"_blank\">How to Extend Pneumatic Seal Lifespan<\/a>  <\/li>\n<li><a href=\"https:\/\/hengoseal.com\/es\/pneumatic-piston-seals-guide\/\" target=\"_blank\">Piston Seal Types &amp; Materials<\/a>  <\/li>\n<li><a href=\"https:\/\/hengoseal.com\/es\/5-problems-with-pneumatic-cylinder-seals\/\" target=\"_blank\">5 Problems with Pneumatic Cylinder Seals<\/a><\/li>\n<\/ul>\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 causes pneumatic cylinder seal failure?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Wear, improper installation, contamination, and wrong materials.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How do I stop air leaks in pneumatic cylinders?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Use quality rod and piston seals, and apply proper lubrication.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What material lasts longest for pneumatic seals?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"TPU for durability, PTFE for low friction, FKM for chemicals.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How often should seals be replaced?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Every 6&ndash;12 months depending on usage.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use hydraulic seals in pneumatic systems?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"No&mdash;pneumatic seals are made for air pressure, not fluids.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How should I lubricate pneumatic seals?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Use synthetic, seal-safe lubricants regularly.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"What causes swelling in seals?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Chemical incompatibility and thermal changes.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Do you offer OEM and custom-size seals?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes, contact us for tailored pneumatic sealing solutions.\"\n}\n}\n]\n}\n<\/script><\/p>\n<h2>La gente tambi\u00e9n pregunta<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. \u00bfQu\u00e9 causa la falla del sello del cilindro neum\u00e1tico?<\/div>\n<div class=\"faq-answer\">Wear, improper installation, contamination, and wrong materials.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. How do I stop air leaks in pneumatic cylinders?<\/div>\n<div class=\"faq-answer\">Use quality rod and piston seals, and apply proper lubrication.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. What material lasts longest for pneumatic seals?<\/div>\n<div class=\"faq-answer\">TPU for durability, PTFE for low friction, FKM for chemicals.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. How often should seals be replaced?<\/div>\n<div class=\"faq-answer\">Every 6\u201312 months depending on usage.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. Can I use hydraulic seals in pneumatic systems?<\/div>\n<div class=\"faq-answer\">No\u2014pneumatic seals are made for air pressure, not fluids.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. How should I lubricate pneumatic seals?<\/div>\n<div class=\"faq-answer\">Use synthetic, seal-safe lubricants regularly.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. What causes swelling in seals?<\/div>\n<div class=\"faq-answer\">Chemical incompatibility and thermal changes.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. Do you offer OEM and custom-size seals?<\/div>\n<div class=\"faq-answer\">Yes, contact us for tailored pneumatic sealing solutions.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Seal failure leads to leaks, downtime, and inefficiency\u2014yet most are preventable. Here are five common pneumatic seal issues and how [&hellip;]<\/p>","protected":false},"author":1,"featured_media":637,"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":[39,58],"tags":[],"class_list":["post-774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pneumatic-seals","category-case-studies"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/posts\/774","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/comments?post=774"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/posts\/774\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/media\/637"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/media?parent=774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/categories?post=774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/es\/wp-json\/wp\/v2\/tags?post=774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}