{"id":8943,"date":"2025-11-03T10:37:23","date_gmt":"2025-11-03T09:37:23","guid":{"rendered":"https:\/\/www.certech.it\/products\/raw-material-dosing-system\/transport-storage-and-extraction\/serranda-a-bocca-di-lupo-bl\/"},"modified":"2025-11-12T16:52:52","modified_gmt":"2025-11-12T15:52:52","slug":"variable-aperture-shutter-bl","status":"publish","type":"page","link":"https:\/\/www.certech.it\/en\/products\/raw-material-dosing-system\/transport-storage-and-extraction\/variable-aperture-shutter-bl\/","title":{"rendered":"Variable Aperture Shutter BL"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row full_width=&#8221;stretch_row&#8221; gap=&#8221;20&#8243; equal_height=&#8221;yes&#8221; kd_background_overlay=&#8221;default&#8221; kd_background_image_position=&#8221;vc_row-bg-position-top&#8221; css=&#8221;.vc_custom_1762161531429{margin-top: 100px !important;padding-top: 100px !important;padding-bottom: 100px !important;}&#8221; el_class=&#8221;swap-on-mobile&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;7994&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221;][vc_empty_space][\/vc_column][vc_column width=&#8221;1\/2&#8243;]<header class=\"kd-section-title col-lg-12 text-left\" ><p class=\"st-overline inherit-color\" style=\"margin-bottom:10px;\">TRANSPORT, STORAGE AND EXTRACTION<\/p><h2 class=\"kd-main-title separator_off\" style=\"font-size: 40;font-weight: 700;\">Variable Aperture Shutter BL<\/h2><\/header>[vc_separator color=&#8221;custom&#8221; align=&#8221;align_left&#8221; border_width=&#8221;3&#8243; el_width=&#8221;20&#8243; css=&#8221;.vc_custom_1695990783786{margin-bottom: 30px !important;}&#8221; accent_color=&#8221;#007e3f&#8221;][vc_column_text css=&#8221;&#8221;]The BL variable aperture shutter built by Certech Group is used for the extraction of free-flowing materials that come out of silos or hoppers (e.g. atomized clay).<\/p>\n<p>The machine is mainly composed of:<\/p>\n<ul>\n<li>a fixed body, which acts as an inlet hopper, flanged and solidly fixed to the silo or hopper outlet.<\/li>\n<li>a pneumatic cylinder, single or combined, which regulates the opening of the shutter according to needs. It is operated by one or more solenoid valves depending on the opening configuration required.<\/li>\n<li>a mobile body hinged on the fixed body, which tilts according to the opening of the pneumatic cylinder.<\/li>\n<\/ul>\n<p>The quantity of material discharged is determined by the size of the variable aperture shutter, the type of material and the width of the opening during operation.<\/p>\n<p>Flow rate adjustment is achieved by adjusting the position of the cylinder. The presence of sensors allows you to check the correct functioning of the BL variable aperture shutter.[\/vc_column_text][vc_empty_space]<a href=\"https:\/\/www.certech.it\/ceramic-processing-plants\/wp-content\/uploads\/2025\/11\/2-ante-BL-GB.pdf\" target=\"_blank\"   class=\"tt_button tt_primary_button btn_primary_color hover_solid_primary btn-align-left button-action-link\" data-text=\"DOWNLOAD THE CATALOGUE\" style=\"width:200;\"><span class=\"prim_text\">DOWNLOAD THE CATALOGUE<\/span><\/a>[vc_empty_space][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; kd_background_overlay=&#8221;default&#8221; kd_background_image_position=&#8221;vc_row-bg-position-top&#8221; css=&#8221;.vc_custom_1762161546227{padding-top: 100px !important;padding-bottom: 70px !important;background-color: #F5F5F5 !important;}&#8221; css_tablet_landscape=&#8221;.vc_custom_1762161546227{padding-bottom: 0px !important;}&#8221; css_tablet_portrait=&#8221;.vc_custom_1762161546227{padding-bottom: 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url(https:\/\/www.certech.it\/ceramic-processing-plants\/wp-content\/uploads\/2023\/09\/Raggruppa-407.jpg?id=297) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; css_tablet_portrait=&#8221;.vc_custom_1695900019997{margin-bottom: 50px !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; css_mobile=&#8221;.vc_custom_1695900019998{margin-bottom: 50px !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221;][vc_column]<header class=\"kd-section-title col-lg-12 text-center\" ><h2 class=\"kd-main-title separator_off\" style=\"color: #ffffff;font-size: 36;font-weight: 700;\">Would you like to know more?<\/h2><\/header>[vc_row_inner kd_background_overlay=&#8221;default&#8221; kd_background_image_position=&#8221;vc_row-bg-position-top&#8221;][vc_column_inner width=&#8221;1\/4&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;]<a href=\"https:\/\/www.certech.it\/ceramic-processing-plants\/wp-content\/uploads\/2025\/11\/2-ante-BL-GB.pdf\" target=\"_self\"   class=\"tt_button tt_primary_button btn_secondary_color hover_solid_primary button-center button-action-link   vc_custom_1762962050244 kd-animated zoomIn\" data-text=\"DOWNLOAD THE CATALOGUE\" style=\"width:200px;\" data-animation-delay=200><span class=\"prim_text\">DOWNLOAD THE CATALOGUE<\/span><\/a>[\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;]<a href=\"https:\/\/www.certech.it\/en\/contacts\/\" target=\"_self\"   class=\"tt_button tt_primary_button btn_secondary_color hover_solid_primary button-center button-action-link   vc_custom_1698365526074 kd-animated zoomIn\" data-text=\"CONTACT US\" style=\"width:200px;\" data-animation-delay=200><span class=\"prim_text\">CONTACT US<\/span><\/a>[\/vc_column_inner][vc_column_inner width=&#8221;1\/4&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row kd_background_overlay=&#8221;default&#8221; kd_background_image_position=&#8221;vc_row-bg-position-top&#8221; css=&#8221;.vc_custom_1696502280431{margin-top: 80px !important;}&#8221;][vc_column]<header class=\"kd-section-title col-lg-12 text-left\" ><h2 class=\"kd-main-title separator_off\" >Look also<\/h2><\/header>[\/vc_column][\/vc_row][vc_row kd_background_overlay=&#8221;default&#8221; kd_background_image_position=&#8221;vc_row-bg-position-top&#8221;][vc_column][vc_basic_grid post_type=&#8221;page&#8221; max_items=&#8221;4&#8243; element_width=&#8221;3&#8243; orderby=&#8221;title&#8221; item=&#8221;1883&#8243; css=&#8221;&#8221; grid_id=&#8221;vc_gid:1762961851766-8bfa5aaf-8e84-2&#8243; taxonomies=&#8221;114&#8243;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row full_width=&#8221;stretch_row&#8221; gap=&#8221;20&#8243; equal_height=&#8221;yes&#8221; kd_background_overlay=&#8221;default&#8221; kd_background_image_position=&#8221;vc_row-bg-position-top&#8221; css=&#8221;.vc_custom_1762161531429{margin-top: 100px !important;padding-top: 100px !important;padding-bottom: 100px !important;}&#8221; el_class=&#8221;swap-on-mobile&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;7994&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221;][vc_empty_space][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_separator color=&#8221;custom&#8221;<\/p>\n","protected":false},"author":1,"featured_media":8145,"parent":8744,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[133],"tags":[],"class_list":["post-8943","page","type-page","status-publish","has-post-thumbnail","hentry","category-transport-storage-and-extraction"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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