{"id":11248,"date":"2023-09-19T11:27:43","date_gmt":"2023-09-19T09:27:43","guid":{"rendered":"https:\/\/rwlkwwtx9d.wpdns.site\/?p=11248"},"modified":"2026-03-06T15:19:21","modified_gmt":"2026-03-06T14:19:21","slug":"the-weight-of-the-composite-material","status":"publish","type":"post","link":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/","title":{"rendered":"The weight of the composite material"},"content":{"rendered":"<p style=\"text-align: left;\">One of the main features of <a href=\"https:\/\/polieco.com\/en\/type\/kio-manhole-covers\/\" target=\"_blank\" rel=\"noopener\">manhole covers in composite material<\/a> is their light weight. This property is achieved by following two paths:<\/p>\n<ul class=\"list-marked\">\n<li>use of materials with a specific weight lighter than that of cast iron, though obviously guaranteeing the strength features required by the standard;<\/li>\n<li>study of the geometry of the manhole cover optimised depending on the particular production method.<\/li>\n<\/ul>\n<p style=\"text-align: left;\">This makes it possible to make the system consisting of cover and frame weigh considerably lower than other products found on the market.<\/p>\n<p style=\"text-align: left;\">We are given a comparison expressed in kg between the weight of the frame + cover system made of composite material and the weights of the frame + cover system made of grey cast iron and ductile cast iron by European manufacturers. The weight difference is on average beyond 70% compared to covers in grey cast iron and beyond 65% compared to covers in ductile cast iron.<\/p>\n<table class=\" alignleft\">\n<tbody>\n<tr>\n<td width=\"135\"><strong>B125 <\/strong><\/td>\n<td width=\"135\"><strong>Grey Cast Iron <\/strong><\/p>\n<p><strong>(kg) <\/strong><\/td>\n<td width=\"135\"><strong>Ductile Cast Iron <\/strong><\/p>\n<p><strong>(kg) <\/strong><\/td>\n<td width=\"135\"><strong>Composite <\/strong><\/p>\n<p><strong>(kg) <\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"135\">300 x 300<\/td>\n<td width=\"135\">9.00<\/td>\n<td width=\"135\">8.20<\/td>\n<td width=\"135\">2.00<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">400 x 400<\/td>\n<td width=\"135\">15.00<\/td>\n<td width=\"135\">12.80<\/td>\n<td width=\"135\">3.10<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">500 x 500<\/td>\n<td width=\"135\">26.00<\/td>\n<td width=\"135\">18.20<\/td>\n<td width=\"135\">5.90<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">600 x 600<\/td>\n<td width=\"135\">40.00<\/td>\n<td width=\"135\">29.40<\/td>\n<td width=\"135\">9.00<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">700 x 700<\/td>\n<td width=\"135\">56.00<\/td>\n<td width=\"135\">38.80<\/td>\n<td width=\"135\">12.90<\/td>\n<\/tr>\n<tr>\n<td width=\"135\"><strong>C250 <\/strong><\/td>\n<td width=\"135\"><strong>Grey Cast Iron <\/strong><\/p>\n<p><strong>(kg) <\/strong><\/td>\n<td width=\"135\"><strong>Ductile Cast Iron <\/strong><\/p>\n<p><strong>(kg) <\/strong><\/td>\n<td width=\"135\"><strong>Composite <\/strong><\/p>\n<p><strong>(kg) <\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"135\">400 x 400<\/td>\n<td width=\"135\">23.00<\/td>\n<td width=\"135\">25.00<\/td>\n<td width=\"135\">5.50<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">500 x 500<\/td>\n<td width=\"135\">39.00<\/td>\n<td width=\"135\">33.00<\/td>\n<td width=\"135\">12.00<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">600 x 600<\/td>\n<td width=\"135\">57.00<\/td>\n<td width=\"135\">45.00<\/td>\n<td width=\"135\">19.40<\/td>\n<\/tr>\n<tr>\n<td width=\"135\">700 x 700<\/td>\n<td width=\"135\">74.00<\/td>\n<td width=\"135\">61.00<\/td>\n<td width=\"135\">29.80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: left;\">The low weight considerably reduces operators\u2019 risks during handling, installation and subsequent maintenance of the manhole covers. Law Decree 81\/08 (Consolidated Act on Health and Safety at Work) defines the maximum permitted weight for handling loads on construction sites as 25 kg. The <strong>weight of<\/strong> composite <strong>manhole covers<\/strong> up to model 600&#215;600 C250 is below this limit. Even smaller cast iron manhole covers require the intervention of two persons and the use of mechanical equipment for handling and installation.<\/p>\n<p style=\"text-align: center;\"><a class=\"button button-darker\" href=\"https:\/\/polieco.com\/en\/type\/kio-manhole-covers\/\" target=\"_blank\" rel=\"noopener\">Composite manhole covers<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <a class=\"button button-darker\" href=\"https:\/\/polieco.com\/en\/prodotti\/kio-trench\/\" target=\"_blank\" rel=\"noopener\">Modular manhole covers<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>One of the main features of manhole covers in composite material is their light weight. This property is achieved by [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[151],"tags":[],"class_list":["post-11248","post","type-post","status-publish","format-standard","hentry","category-manhole-covers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How much do composite manhole covers weigh? | Polieco Group<\/title>\n<meta name=\"description\" content=\"Composite manhole covers are much lighter than cast iron ones. Find out the weight difference in this article.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How much do composite manhole covers weigh? | Polieco Group\" \/>\n<meta property=\"og:description\" content=\"Composite manhole covers are much lighter than cast iron ones. Find out the weight difference in this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/\" \/>\n<meta property=\"og:site_name\" content=\"Polieco Industrie MPB\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-19T09:27:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-06T14:19:21+00:00\" \/>\n<meta name=\"author\" content=\"Lara Mersi\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Lara Mersi\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/\",\"url\":\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/\",\"name\":\"How much do composite manhole covers weigh? | Polieco Group\",\"isPartOf\":{\"@id\":\"https:\/\/polieco.com\/en\/#website\"},\"datePublished\":\"2023-09-19T09:27:43+00:00\",\"dateModified\":\"2026-03-06T14:19:21+00:00\",\"author\":{\"@id\":\"https:\/\/polieco.com\/en\/#\/schema\/person\/a89c3e316efec642c32ab2a4b3ff96df\"},\"description\":\"Composite manhole covers are much lighter than cast iron ones. Find out the weight difference in this article.\",\"breadcrumb\":{\"@id\":\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/polieco.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"The weight of the composite material\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/polieco.com\/en\/#website\",\"url\":\"https:\/\/polieco.com\/en\/\",\"name\":\"Polieco Industrie MPB\",\"description\":\"Tubazioni corrugate, pezzi speciali,  pozzetti in polietilene e KIO\",\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/polieco.com\/en\/#\/schema\/person\/a89c3e316efec642c32ab2a4b3ff96df\",\"name\":\"Lara Mersi\",\"url\":\"https:\/\/polieco.com\/en\/author\/laramersi\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How much do composite manhole covers weigh? | Polieco Group","description":"Composite manhole covers are much lighter than cast iron ones. Find out the weight difference in this article.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/","og_locale":"en_US","og_type":"article","og_title":"How much do composite manhole covers weigh? | Polieco Group","og_description":"Composite manhole covers are much lighter than cast iron ones. Find out the weight difference in this article.","og_url":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/","og_site_name":"Polieco Industrie MPB","article_published_time":"2023-09-19T09:27:43+00:00","article_modified_time":"2026-03-06T14:19:21+00:00","author":"Lara Mersi","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Lara Mersi","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/","url":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/","name":"How much do composite manhole covers weigh? | Polieco Group","isPartOf":{"@id":"https:\/\/polieco.com\/en\/#website"},"datePublished":"2023-09-19T09:27:43+00:00","dateModified":"2026-03-06T14:19:21+00:00","author":{"@id":"https:\/\/polieco.com\/en\/#\/schema\/person\/a89c3e316efec642c32ab2a4b3ff96df"},"description":"Composite manhole covers are much lighter than cast iron ones. Find out the weight difference in this article.","breadcrumb":{"@id":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/polieco.com\/en\/the-weight-of-the-composite-material\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/polieco.com\/en\/"},{"@type":"ListItem","position":2,"name":"The weight of the composite material"}]},{"@type":"WebSite","@id":"https:\/\/polieco.com\/en\/#website","url":"https:\/\/polieco.com\/en\/","name":"Polieco Industrie MPB","description":"Tubazioni corrugate, pezzi speciali,  pozzetti in polietilene e KIO","inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/polieco.com\/en\/#\/schema\/person\/a89c3e316efec642c32ab2a4b3ff96df","name":"Lara Mersi","url":"https:\/\/polieco.com\/en\/author\/laramersi\/"}]}},"_links":{"self":[{"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/posts\/11248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/comments?post=11248"}],"version-history":[{"count":3,"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/posts\/11248\/revisions"}],"predecessor-version":[{"id":15396,"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/posts\/11248\/revisions\/15396"}],"wp:attachment":[{"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/media?parent=11248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/categories?post=11248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polieco.com\/en\/wp-json\/wp\/v2\/tags?post=11248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}