{"id":9345,"date":"2016-10-18T10:09:23","date_gmt":"2016-10-18T08:09:23","guid":{"rendered":"https:\/\/www.gammaimpianti.com\/fumi-di-saldatura-rischi-tecniche-aspirazione\/"},"modified":"2023-06-26T10:19:25","modified_gmt":"2023-06-26T08:19:25","slug":"welding-fumes-risks-and-extraction-techniques","status":"publish","type":"post","link":"https:\/\/www.gammaimpianti.com\/en\/welding-fumes-risks-and-extraction-techniques\/","title":{"rendered":"Welding fumes: risks and extraction techniques"},"content":{"rendered":"<h3>Welding fumes: in Italy, according to the latest Istat survey, more than one million of welders work full-time and a large number of workers who occasionally perform technical welding work are all exposed to various health risks, including welding fumes, dust, vapours, and gases<\/h3>\n<p>It is known that during the process of welding metals, depending on the technique used, welding fumes, dust and gases containing dozens of different chemical and harmful substances are generated, produced from the same processed material that remains <strong>suspended in the air in the form of metal particles or metal derivatives<\/strong> (for example oxides), fillers (electrodes, rod electrodes, lead, welding powder, etc.) or these are removed from the recoating as paints, coverings and detergents.<\/p>\n<p>&nbsp;<\/p>\n<h4>How much welding smoke does each different process generate?<\/h4>\n<p>The amount of fumes generated and their danger depend on different variables, all well known by every expert welder:<\/p>\n<ul>\n<li>The electrode type, wire diameter, gas flow rate and its composition;<\/li>\n<li>Obviously the welding technique adopted and its technical setups such as intensity and voltage;<\/li>\n<li>The type of coating, the thickness and composition and very often the presence of substances that cover the sheet metals.<\/li>\n<\/ul>\n<p>The health risk is particularly high when welding stainless steels due to the presence of certain transition metals, such as chromium, nickel, molybdenum and manganese, which produce in welding fumes metals and oxidised compounds which are very dangerous for health.<\/p>\n<table style=\"width: 731px;\">\n<tbody>\n<tr>\n<td style=\"width: 444px;\">\n<h4>Serious risks for people<\/h4>\n<p>Continuous exposure to welding fumes can cause numerous problems for operators because when inhaled, they are absorbed through the lungs into the blood, nerve cells of the brain, spinal cord, and other important organs, causing serious health effects in the short to long term.<\/td>\n<td style=\"width: 271px;\"><a href=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/lavoratore_saldatura_fumi.jpg\" rel=\"prettyPhoto\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1910\" title=\"Fumi di saldatura: tecniche di aspirazione fumi saldatura e rischi per la salute del lavoratore\" src=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/lavoratore_saldatura_fumi-300x300.jpg\" alt=\"Fumi di saldatura rischi per la salute lavoratore\" width=\"204\" height=\"204\" srcset=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/lavoratore_saldatura_fumi-300x300.jpg 300w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/lavoratore_saldatura_fumi-150x150.jpg 150w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/lavoratore_saldatura_fumi.jpg 691w\" sizes=\"auto, (max-width: 204px) 100vw, 204px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h4>Effective suction depending on the type of work<\/h4>\n<p>All the risks outlined above can be drastically reduced by using the right suction and filtration systems when needed. Every experienced welder knows that the most efficient way to control welding fumes is to capture them at the source, as close as possible to the emission source before they pass through the breathing zone of the workers or disperse into the working environment, as seen in the video below:<\/p>\n<div style=\"width: 750px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-9345-1\" width=\"750\" height=\"422\" loop preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/aspirazione_fumi_saldatura_MFU_gammaimpianti.m4v?_=1\" \/><a href=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/aspirazione_fumi_saldatura_MFU_gammaimpianti.m4v\">https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/aspirazione_fumi_saldatura_MFU_gammaimpianti.m4v<\/a><\/video><\/div>\n<p>&nbsp;<\/p>\n<p>These techniques of extraction of welding fumes, among other things, require air flow rates much lower than the general ventilation of the premises with consequent lower operating costs even if with higher initial investment costs. Local ventilation must be considered a priority in all cases and in particular when dangerous pollutants are emitted in significant quantities.<\/p>\n<p>The calculation of the necessary flow rates, for the various types of local suction systems, must be carried out considering the correct collection speeds at the source otherwise the system will be ineffective.<br \/>\nThe choice of the suction system is made together with our technical department especially according to the size of the pieces and the production needs.<\/p>\n<p>&nbsp;<\/p>\n<h4><strong>Examples of localized welding fume collection systems<\/strong><\/h4>\n<table style=\"width: 100%;\" width=\"100%\">\n<tbody>\n<tr>\n<td style=\"text-align: center; width: 30%;\" width=\"30%\"><strong>Suction bench<\/strong>, single or\u00a0installed in a <a href=\"https:\/\/www.gammaimpianti.com\/realizzazione\/impianto-aspirazione-fumi-saldatura\/\">central system<\/a><\/td>\n<td style=\"text-align: center; width: 4%;\" width=\"4%\"><\/td>\n<td style=\"text-align: center; width: 31%;\" width=\"31%\"><strong>Suction bench<\/strong> with <a href=\"https:\/\/www.gammaimpianti.com\/p\/gbv-banchi-aspiranti-filtri-ventilatore\/\">suction table<\/a> and retaining walls or suction arm<\/td>\n<td style=\"text-align: center; width: 4%;\" width=\"4%\"><\/td>\n<td style=\"text-align: center; width: 30%;\" width=\"30%\"><strong>Portable purifier<\/strong> <a href=\"https:\/\/www.gammaimpianti.com\/p\/aspiratore-mobile-filtro-depuratore-fumi-saldatura-mfu16\/\">with HEPA 99.95% filtration<\/a> and activated carbons<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; width: 30%;\"><a title=\"Impianto aspirazione fumi di saldatura centralizzato\" href=\"https:\/\/www.gammaimpianti.com\/p\/prodotto-1\/\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1800\" src=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/impianto_aspirazione_fumi_saldatura2-300x225.jpg\" alt=\"Impianto aspirazione fumi di saldatura centralizzato, braccio aspirante con prolunga a bandiera\" width=\"216\" height=\"162\" srcset=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/impianto_aspirazione_fumi_saldatura2-300x225.jpg 300w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/impianto_aspirazione_fumi_saldatura2-768x576.jpg 768w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/impianto_aspirazione_fumi_saldatura2-1024x768.jpg 1024w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/impianto_aspirazione_fumi_saldatura2-1200x900.jpg 1200w\" sizes=\"auto, (max-width: 216px) 100vw, 216px\" \/><\/a><\/td>\n<td style=\"width: 4%;\"><\/td>\n<td style=\"text-align: center; width: 31%;\"><a title=\"GBV Banchi aspiranti con filtri e ventilatore\" href=\"https:\/\/www.gammaimpianti.com\/p\/gbv-banchi-aspiranti-filtri-ventilatore\/\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1694 aligncenter\" src=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/GBV_banco_filtri_ventilatore-259x300.jpg\" alt=\"Banco aspirante per fumi e polveri molatura con ventilatore e filtri integrati\" width=\"169\" height=\"196\" srcset=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/GBV_banco_filtri_ventilatore-259x300.jpg 259w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/GBV_banco_filtri_ventilatore-768x888.jpg 768w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/GBV_banco_filtri_ventilatore-886x1024.jpg 886w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/GBV_banco_filtri_ventilatore-1200x1388.jpg 1200w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/GBV_banco_filtri_ventilatore.jpg 1280w\" sizes=\"auto, (max-width: 169px) 100vw, 169px\" \/><\/a><\/td>\n<td style=\"text-align: center; width: 4%;\"><\/td>\n<td style=\"text-align: center; width: 30%;\"><a title=\"Fumi e polveri di saldatura aspirazione con filtro carrellato\" href=\"https:\/\/www.gammaimpianti.com\/p\/aspiratore-mobile-filtro-depuratore-fumi-saldatura-mfu16\/\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1917\" src=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/depuratore_mobile_fumi_saldatura-230x300.jpg\" alt=\"fumi e polveri di saldatura aspirazione con filtro carrellato\" width=\"151\" height=\"197\" srcset=\"https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/depuratore_mobile_fumi_saldatura-230x300.jpg 230w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/depuratore_mobile_fumi_saldatura-768x1001.jpg 768w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/depuratore_mobile_fumi_saldatura-786x1024.jpg 786w, https:\/\/www.gammaimpianti.com\/wp-content\/uploads\/depuratore_mobile_fumi_saldatura-1200x1564.jpg 1200w\" sizes=\"auto, (max-width: 151px) 100vw, 151px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 30%;\"><strong>ADVANTAGES<\/strong><br \/>\n&#8211; Allows work at undefined workstation<br \/>\n&#8211; Collection near the source<br \/>\n&#8211; Reduced flow rate<\/td>\n<td style=\"width: 4%;\"><\/td>\n<td style=\"width: 31%;\"><strong>ADVANTAGES<\/strong><br \/>\n&#8211; Collection without the welder intervention<br \/>\n&#8211; The work plan facilitates operations<\/td>\n<td style=\"width: 4%;\"><\/td>\n<td style=\"width: 30%;\"><strong>ADVANTAGES<\/strong><br \/>\n&#8211; Allows several welding points to be reached<br \/>\n&#8211; Collection near the source<br \/>\n&#8211; Reduced flow rate<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.gammaimpianti.com\/en\/p\/welding-and-grinding-booth-with-extendable-telescopic-cover\/\">The welding cabins<\/a>, equipped with suction wall, are typical examples of systems with not localized collection but that exploit the ventilation of the working area, to be used in case <strong>the dimensions of the pieces to be welded<\/strong> make it impossible to use localized systems.<\/p>\n<p><strong>ADVANTAGES<\/strong><\/p>\n<ul>\n<li>Effective ventilation<\/li>\n<li>Collection without the welder intervention<\/li>\n<li>Excellent insulation of the area<\/li>\n<\/ul>\n<p><strong>Finally, it is essential to know the application and evaluate your safety needs<\/strong><\/p>\n<p>Remember that the type of <a href=\"https:\/\/www.gammaimpianti.com\/en\/i\/welding-fumes-extraction\/\">welding fumes suction system<\/a>, the possible filtration, and personal protection depend on the type of material you are working, welding techniques, and production layout.<br \/>\nOur technical department recommends that you always critically assess your working situation together with the safety officer, asking for:<\/p>\n<ul>\n<li>Work in limited space with little or no ventilation?<\/li>\n<li>What kind of metals am I welding?<\/li>\n<li>Are the parts to be processed clean or stained with chemicals?<\/li>\n<li>Is my suction system working properly?<\/li>\n<li>Is there any prevailing air flow that I can take advantage of or that disturbs the suction?<\/li>\n<li>Should I wear a mask or other personal protective equipment?<\/li>\n<\/ul>\n<p>The answers to the above questions will lead you in the right direction, which is to improve the working environment while minimizing the risks for all people involved.<\/p>\n<p><a href=\"https:\/\/www.gammaimpianti.com\/en\/contacts\/\">Contact us<\/a> for a free consultation or a quotation.<\/p>\n<p>&nbsp;<\/p>\n<p>Sources and references used for this article:<\/p>\n<ul>\n<li><a href=\"https:\/\/appsricercascientifica.inail.it\/profili_di_rischio\/Industrie_meccaniche\/index.asp\">Inail &#8211; Risk profiles in the production sectors of craft, small, and medium enterprises, and public establishments: Mechanical Industries<\/a><\/li>\n<li><a href=\"https:\/\/it.wikipedia.org\/wiki\/Saldatura\">Wikipedia: the welding<\/a><a href=\"https:\/\/appsricercascientifica.inail.it\/profili_di_rischio\/Industrie_meccaniche\/index.asp\"><br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.istat.it\/it\/istituto-nazionale-di-statistica\">Istat &#8211; Istituto Nazionale di Statistica<\/a><a href=\"https:\/\/appsricercascientifica.inail.it\/profili_di_rischio\/Industrie_meccaniche\/index.asp\"><br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.hse.gov.uk\/welding\/illness.htm\">HSE Uk<\/a><a href=\"https:\/\/appsricercascientifica.inail.it\/profili_di_rischio\/Industrie_meccaniche\/index.asp\"><br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.ccohs.ca\/oshanswers\/safety_haz\/welding\/fumes.html\">CCOHS Canada\u00a0<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Welding fumes: in Italy, according to the latest Istat survey, more than one million of welders work full-time and a large number of workers who occasionally perform technical welding work are all exposed to various health risks, including welding fumes, dust, vapours, and gases It is known that during the process of welding metals, depending [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1914,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[91],"tags":[109],"class_list":["post-9345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-focus-air-treatment","tag-welding-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Welding fumes: risks and extraction techniques - Gamma impianti<\/title>\n<meta name=\"description\" content=\"In Italy, more than a million welders work exposed to various health risks, including welding fumes, dust, vapors, and gases.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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