{"id":2866,"date":"2018-04-18T00:00:00","date_gmt":"2018-04-17T22:00:00","guid":{"rendered":"https:\/\/epidor.com\/rascadores-para-sistemas-hidraulicos-extremos\/"},"modified":"2025-05-05T12:13:07","modified_gmt":"2025-05-05T10:13:07","slug":"scrapers-for-extreme-hydraulic-systems","status":"publish","type":"post","link":"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/","title":{"rendered":"Scrapers for extreme hydraulic systems"},"content":{"rendered":"<div id=\"pl-7180\"  class=\"panel-layout\" >\n<div id=\"pg-7180-0\"  class=\"panel-grid panel-no-style\"  data-style=\"{&quot;background_display&quot;:&quot;tile&quot;,&quot;lsow_dark_bg&quot;:&quot;&quot;,&quot;iw-visible-screen&quot;:&quot;iw-all&quot;,&quot;iw-visible-layout&quot;:&quot;iw-all&quot;}\" >\n<div id=\"pgc-7180-0-0\"  class=\"panel-grid-cell panel-grid-cell-empty\"  data-weight=\"0.050223083650106\" ><\/div>\n<div id=\"pgc-7180-0-1\"  class=\"panel-grid-cell panel-grid-cell-mobile-last\"  data-weight=\"0.89956672932203\" >\n<div id=\"panel-7180-0-1-0\" class=\"so-panel widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\" data-style=\"{&quot;background_image_attachment&quot;:false,&quot;background_display&quot;:&quot;tile&quot;,&quot;animation_offset&quot;:&quot;10&quot;,&quot;animation_iteration&quot;:&quot;1&quot;,&quot;sticky_type&quot;:&quot;no&quot;,&quot;sticky_spacer&quot;:&quot;false&quot;,&quot;iw-visible-screen&quot;:&quot;iw-all&quot;,&quot;iw-visible-layout&quot;:&quot;iw-all&quot;}\" >\n<div data-sticky-spacer=\"false\" class=\"panel-widget-style panel-widget-style-for-7180-0-1-0\" >\n<div class=\"so-widget-sow-editor so-widget-sow-editor-base\">\n<div class=\"siteorigin-widget-tinymce textwidget\">\n<p><span style=\"font-weight: 400;\">The scrapers serve to protect the interior of the hydraulic system, preventing the entry of contaminants into its cylinders. The cylinders that make up the hydraulic group need to operate in optimal conditions. The entry of contaminants, whether in greater or lesser volume, can have a great impact on the performance of the cylinders, and can cause the inoperability of part of the system, which would entail a costly repair.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In today's article, we will focus on the <strong>most critical hydraulic systems<\/strong>, The pressure to which it is subjected, the temperature conditions of the application or the high presence of contaminants.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For example; this is the case of the backhoe, a hydraulic system that is subjected to high pressure, oscillating temperatures (the variation between day and night temperature is strong) and a dirty environment.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-left counter-flat ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Index<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#Factores_criticos_en_los_rascadores_de_sistemas_hidraulicos\" >Critical factors in hydraulic system scrapers<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#Particulas_contaminantes\" >Contaminating particles<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#Presion_temperatura_y_entornos_extremos\" >Pressure, temperature and extreme environments<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#Contacto_con_medios_criticos\" >Contact with critical media<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Factores_criticos_en_los_rascadores_de_sistemas_hidraulicos\"><\/span><span style=\"font-weight: 400;\">Critical factors in hydraulic system scrapers <\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Particulas_contaminantes\"><\/span><b>Contaminating particles<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">One of the most dangerous points in a hydraulic system is the entry of contaminants into the cylinder. The cylinder must work in an environment full of solid particles such as sand, rock, dust and many others, and may come into contact with water and, in addition, it must face the weather conditions of the environment. The scraper is often one of the least expensive elements of the machine assembly. It is therefore necessary to select it on the basis of criteria that guarantee its correct operation, which will prolong its useful life. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">The scraper to be used in extreme hydraulic systems must have a <strong>robust design and a mounting that allows strong interference fit between its lip and the cylinder rod.<\/strong> This point is vital to avoid the entry of any of the above mentioned particles. In addition, it must have a <strong>high wear resistance<\/strong> <strong>by abrasion<\/strong>, caused by friction with all types of particles added to the temperature factor.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-12021 aligncenter\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-2-e15240628697811.jpg\" alt=\"\" width=\"600\" height=\"348\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Presion_temperatura_y_entornos_extremos\"><\/span><b>Pressure, temperature and extreme environments<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The scraper will have to\u00a0<strong>withstand the high pressures of heavy hydraulics<\/strong>, The strength and material of the seal will once again be decisive. <\/span><\/p>\n<p><span style=\"font-weight: 400;\"><strong>Polyurethane is a good choice<\/strong>, The product can work in environments with temperatures from -40\u00baC to 90\u00baC, and in high pressure applications due to its high mechanical resistance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">However, it presents the problem of hydrolysis. This phenomenon occurs when the polyurethane is in contact with water or in humid environments. Therefore, it is necessary to select a special polyurethane formulated to resist this phenomenon.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Contacto_con_medios_criticos\"><\/span><b>Contact with critical media<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Today, there are many applications where the scraper has to work in contact with critical media, e.g. in the chemical industry.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This is the case with the industrial mixer of a chemical processing plant, which is dedicated to the compaction of any type of product. In this case, the selection of the scraper will be oriented to the contact with the substance to be processed and also to high temperatures, due to the washing that this type of machinery requires to be able to produce in a clean and bacteria-free way.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In this system, factors such as pressure will take a back seat to the pressure, but <strong>the environment and temperature are of great importance<\/strong>.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A good choice could be the <strong>PTFE scrapers<\/strong>, This prevents the chemical attack from impairing its proper functioning.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Besides, this type of machines are usually washed with the CIP system, which consists of circulating through the equipment a mixture of hot water with dissolved chemical products. Therefore, the PTFE-based scraper is essential to withstand both the washing temperature and the action of the chemical components of the mixture.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For more information, do not hesitate to consult our team of experts, who will propose the best solution for your application.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7182\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-3.jpg\" alt=\"\" width=\"600\" height=\"348\" \/><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"pgc-7180-0-2\"  class=\"panel-grid-cell panel-grid-cell-empty\"  data-weight=\"0.050210187027859\" ><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Los rascadores sirven para proteger el interior del sistema hidr\u00e1ulico, evitando la entrada de contaminantes dentro de sus cilindros. Los cilindros que componen el grupo hidr\u00e1ulico necesitan operar en condiciones \u00f3ptimas. La \u00a0entrada de contaminantes, ya sea en mayor o menor volumen, puede tener un gran impacto en el rendimiento de los cilindros, pudiendo provocar [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2870,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[46],"tags":[],"class_list":["post-2866","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-estanqueidad-para-hidraulica-y-neumatica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rascadores para sistemas hidr\u00e1ulicos extremos I Epidor SRT<\/title>\n<meta name=\"description\" content=\"Los rascadores sirven para proteger el interior del sistema hidr\u00e1ulico, evitando la entrada de contaminantes.\u00a1Conoce los factores cr\u00edticos!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/epidor.com\/en\/blog\/scrapers-for-extreme-hydraulic-systems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rascadores para sistemas hidr\u00e1ulicos extremos I Epidor SRT\" \/>\n<meta property=\"og:description\" content=\"Los rascadores sirven para proteger el interior del sistema hidr\u00e1ulico, evitando la entrada de contaminantes.\u00a1Conoce los factores cr\u00edticos!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/epidor.com\/en\/blog\/scrapers-for-extreme-hydraulic-systems\/\" \/>\n<meta property=\"og:site_name\" content=\"Epidor - Expertos en soluciones de estanqueidad\" \/>\n<meta property=\"article:published_time\" content=\"2018-04-17T22:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-05T10:13:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-1024x594-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"594\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Marketing Digital\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marketing Digital\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/\"},\"author\":{\"name\":\"Marketing Digital\",\"@id\":\"https:\/\/epidor.com\/en\/#\/schema\/person\/4ac844ecb58831434eec7b420fe8ea11\"},\"headline\":\"Rascadores para sistemas hidr\u00e1ulicos extremos\",\"datePublished\":\"2018-04-17T22:00:00+00:00\",\"dateModified\":\"2025-05-05T10:13:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/\"},\"wordCount\":693,\"publisher\":{\"@id\":\"https:\/\/epidor.com\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-1024x594-1.jpg\",\"articleSection\":[\"Estanqueidad para hidr\u00e1ulica y neum\u00e1tica\"],\"inLanguage\":\"en\"},{\"@type\":[\"WebPage\",\"ItemPage\"],\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/\",\"url\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/\",\"name\":\"Rascadores para sistemas hidr\u00e1ulicos extremos I Epidor SRT\",\"isPartOf\":{\"@id\":\"https:\/\/epidor.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-1024x594-1.jpg\",\"datePublished\":\"2018-04-17T22:00:00+00:00\",\"dateModified\":\"2025-05-05T10:13:07+00:00\",\"description\":\"Los rascadores sirven para proteger el interior del sistema hidr\u00e1ulico, evitando la entrada de contaminantes.\u00a1Conoce los factores cr\u00edticos!\",\"breadcrumb\":{\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#breadcrumb\"},\"inLanguage\":\"en\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en\",\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#primaryimage\",\"url\":\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-1024x594-1.jpg\",\"contentUrl\":\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/sistemas-hidraulicos-Epidor-SRT-1024x594-1.jpg\",\"width\":1024,\"height\":594},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/epidor.com\/en\/blog\/rascadores-para-sistemas-hidraulicos-extremos\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/epidor.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Rascadores para sistemas hidr\u00e1ulicos extremos\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/epidor.com\/en\/#website\",\"url\":\"https:\/\/epidor.com\/en\/\",\"name\":\"Epidor - 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