{"id":3606,"date":"2025-11-19T17:24:42","date_gmt":"2025-11-19T17:24:42","guid":{"rendered":"https:\/\/www.sebinopack.com\/2025\/11\/19\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/"},"modified":"2025-12-19T10:51:32","modified_gmt":"2025-12-19T10:51:32","slug":"how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well","status":"publish","type":"post","link":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/","title":{"rendered":"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well"},"content":{"rendered":"\n<p>Choosing the <strong>right big bag <\/strong>means avoiding downtime, breakages, safety issues and disputes. This is why it is essential to start with an essential data sheet: what the big bag should contain, for how long, under what storage conditions, and how to load and unload. <\/p>\n\n<p>The base material for big bags is woven <strong>polypropylene<\/strong><em>(PP<\/em>) <strong>fabric<\/strong>, in different weights. Lighter fabrics are suitable for medium-low capacities and nonabrasive products; heavier weights are needed for high loads, aggressive products or repeated use. The fabric is often joined by internal plastic film liners, useful when a barrier against moisture, oxygen or contamination is needed.  <\/p>\n\n<p>The <strong>choice of load capacity<\/strong><em>(<\/em>Safe<em>Working Load<\/em>) and safety factor is a key step. The SWL indicates the maximum weight that the big bag can bear in operation, while the safety factor (e.g., 5:1, 6:1) describes the safety margin with which the bag has been tested. For single-use products in many industrial settings, a 5:1 is sufficient, while higher factors may be required for reusable big bags or for critical industries.  <\/p>\n\n<p>Another key element is the <strong>loading and unloading system<\/strong>. At the top we can find: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>Open top (for rapid loading of aggregates),<\/li>\n\n\n\n<li>fill skirt (which facilitates loading by reducing dust and dispersion),<\/li>\n\n\n\n<li>loading valve (ideal for connection to hoppers and closed systems).<\/li>\n<\/ul>\n\n<p>At the bottom, the most popular options are:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Closed flat bottom (for single use and discharge by tipping the bag),<\/li>\n\n\n\n<li>Conical discharge valve (for controlled emptying),<\/li>\n\n\n\n<li>Quick opening systems (&#8220;star&#8221;, &#8220;trap door&#8221; or similar bottoms).<\/li>\n<\/ul>\n\n<p>Finally, <strong>the accessories<\/strong>: document pocket, sewn-in labels, additional tipping straps, specific seam colors, reinforcement bands, anti-UV treatments. Every detail can make a difference on automated lines or in harsh environments. <\/p>\n\n<p><em>To avoid mistakes<\/em>, it is helpful to share department photos, layouts, and handling methods with the supplier. <strong>Sebino Pack<\/strong>, for example, often starts with physical samples and inspections to propose a configuration that holds together <strong>safety<\/strong>, <strong>practicality <\/strong>, and <strong>cost <\/strong>per duty cycle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Choosing the right big bag means avoiding downtime, breakages, safety issues and disputes. This is why it is essential to start with an essential data sheet: what the big bag should contain, for how long, under what storage conditions, and how to load and unload. The base material for big bags is woven polypropylene(PP) fabric, [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":3422,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3606","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-categorizzato"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well<\/title>\n<meta name=\"description\" content=\"To choose the right big bag, it is essential to start with a data sheet to avoid stoppages, disputes or problems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well\" \/>\n<meta property=\"og:description\" content=\"To choose the right big bag, it is essential to start with a data sheet to avoid stoppages, disputes or problems.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/\" \/>\n<meta property=\"og:site_name\" content=\"Sebino Pack\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SebinoPack\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-19T17:24:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-19T10:51:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2025\/12\/2.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"716\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"giuliatattico\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"giuliatattico\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well","description":"To choose the right big bag, it is essential to start with a data sheet to avoid stoppages, disputes or problems.","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:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/","og_locale":"en_US","og_type":"article","og_title":"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well","og_description":"To choose the right big bag, it is essential to start with a data sheet to avoid stoppages, disputes or problems.","og_url":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/","og_site_name":"Sebino Pack","article_publisher":"https:\/\/www.facebook.com\/SebinoPack\/","article_published_time":"2025-11-19T17:24:42+00:00","article_modified_time":"2025-12-19T10:51:32+00:00","og_image":[{"width":1600,"height":716,"url":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2025\/12\/2.jpeg","type":"image\/jpeg"}],"author":"giuliatattico","twitter_card":"summary_large_image","twitter_misc":{"Written by":"giuliatattico","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#article","isPartOf":{"@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/"},"author":{"name":"giuliatattico","@id":"https:\/\/www.sebinopack.com\/en\/#\/schema\/person\/16d5a764cdeda6d4ba5aa7399f215bf9"},"headline":"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well","datePublished":"2025-11-19T17:24:42+00:00","dateModified":"2025-12-19T10:51:32+00:00","mainEntityOfPage":{"@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/"},"wordCount":336,"commentCount":0,"publisher":{"@id":"https:\/\/www.sebinopack.com\/en\/#organization"},"image":{"@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2025\/12\/2.jpeg","articleSection":["Non categorizzato"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/","url":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/","name":"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well","isPartOf":{"@id":"https:\/\/www.sebinopack.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#primaryimage"},"image":{"@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2025\/12\/2.jpeg","datePublished":"2025-11-19T17:24:42+00:00","dateModified":"2025-12-19T10:51:32+00:00","description":"To choose the right big bag, it is essential to start with a data sheet to avoid stoppages, disputes or problems.","breadcrumb":{"@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#primaryimage","url":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2025\/12\/2.jpeg","contentUrl":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2025\/12\/2.jpeg","width":1600,"height":716,"caption":"Big-Bag"},{"@type":"BreadcrumbList","@id":"https:\/\/www.sebinopack.com\/en\/how-to-choose-the-right-big-bag-materials-capacity-loading-unloading-valves-and-accessories-explained-well\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sebinopack.com\/en\/"},{"@type":"ListItem","position":2,"name":"How to choose the right Big Bag: materials, capacity, loading\/unloading valves and accessories explained well"}]},{"@type":"WebSite","@id":"https:\/\/www.sebinopack.com\/en\/#website","url":"https:\/\/www.sebinopack.com\/en\/","name":"Sebino Pack","description":"Big Bags e packaging per l&#039;Industria e il Commercio","publisher":{"@id":"https:\/\/www.sebinopack.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sebinopack.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.sebinopack.com\/en\/#organization","name":"Sebino Pack","url":"https:\/\/www.sebinopack.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.sebinopack.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2024\/09\/logo_colori-piatto-small.png","contentUrl":"https:\/\/www.sebinopack.com\/wp-content\/uploads\/2024\/09\/logo_colori-piatto-small.png","width":189,"height":64,"caption":"Sebino Pack"},"image":{"@id":"https:\/\/www.sebinopack.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SebinoPack\/"]},{"@type":"Person","@id":"https:\/\/www.sebinopack.com\/en\/#\/schema\/person\/16d5a764cdeda6d4ba5aa7399f215bf9","name":"giuliatattico","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.sebinopack.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/c47f133b687698a5b2e2a46022fce5608525a1784215960a0444751b327d5f77?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c47f133b687698a5b2e2a46022fce5608525a1784215960a0444751b327d5f77?s=96&d=mm&r=g","caption":"giuliatattico"},"url":"https:\/\/www.sebinopack.com\/en\/author\/giuliatattico\/"}]}},"_links":{"self":[{"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/posts\/3606","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/comments?post=3606"}],"version-history":[{"count":1,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/posts\/3606\/revisions"}],"predecessor-version":[{"id":3608,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/posts\/3606\/revisions\/3608"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/media\/3422"}],"wp:attachment":[{"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/media?parent=3606"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/categories?post=3606"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sebinopack.com\/en\/wp-json\/wp\/v2\/tags?post=3606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}