{"id":4082,"date":"2025-12-02T23:39:09","date_gmt":"2025-12-02T23:39:09","guid":{"rendered":"https:\/\/hnytventilator.com\/?p=4082"},"modified":"2025-12-02T23:43:03","modified_gmt":"2025-12-02T23:43:03","slug":"how-should-you-maintain-an-sdf-series-tunnel-axial-flow-fan-for-long-term-safe-operation","status":"publish","type":"post","link":"https:\/\/hnytventilator.com\/fr\/blog\/how-should-you-maintain-an-sdf-series-tunnel-axial-flow-fan-for-long-term-safe-operation\/","title":{"rendered":"How Should You Maintain an SDF Series Tunnel Axial Flow Fan for Long-Term Safe Operation?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"4082\" class=\"elementor elementor-4082\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8473a7d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8473a7d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-31306f5a\" data-id=\"31306f5a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-42be92eb elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"42be92eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How Should You Maintain an SDF Series Tunnel Axial Flow Fan for Long-Term Safe Operation?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bc26b86 elementor-widget elementor-widget-post-info\" data-id=\"7bc26b86\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-1215865 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/2025\/12\/02\/\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>d\u00e9cembre 2, 2025<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fbb3d1b elementor-widget elementor-widget-text-editor\" data-id=\"1fbb3d1b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"http:\/\/www.ytequipment.net\">S\u00e9rie SDF - Ventilateur \u00e0 flux axial en tunnel<\/a> requires correct operation and regular maintenance to ensure long-term safe and stable performance in tunnel ventilation. Operators must follow strict procedures to keep the fan running efficiently and to reduce safety risks.<\/p><p>Proper Startup for Different Ventilation Distances<\/p><p>For short-distance ventilation, only the first-stage fan needs to be started. For long-distance ventilation, all three stages can be used. When starting three stages, start the Stage 1 fan first. After it reaches normal running condition, start Stage 2, and then Stage 3. This sequence prevents overload and protects the electrical system.<\/p><p>Pre-Operation Inspection<\/p><p>Before running the fan, ensure no foreign objects remain inside the fan housing. All fasteners must be secure, and the impeller must rotate in the correct direction. Conduct a test run to confirm flexible rotation and absence of abnormal noise. During operation, operators should inspect the fan frequently and keep detailed records.<\/p><p>Safety Precautions for Air Inlet<\/p><p>Nothing should be placed or hung at the fan\u2019s air inlet to prevent objects from being sucked in. If the protective cover on the collector is damaged, the fan must not be used. This rule prevents accidents and protects the impeller from severe damage.<\/p><p>Lubrication and Bearing Care<\/p><p>Grease must be replaced regularly. When the fan has operated for six months, the bearing should be cleaned, and fresh grease added. The correct filling amount is one-half to two-thirds of the bearing\u2019s free volume. During use, the bearing temperature must not exceed 95\u00b0C, and the sound should remain normal. Replace bearings immediately if severe wear is detected.<\/p><p>Maintaining the Anechoic Holes<\/p><p>After a period of operation, dust may accumulate in the anechoic holes. High-pressure air should be used to clean them. If the holes remain blocked, the noise-reduction performance of the SDF fan will be affected.<\/p><p>Regular Repair Schedule<\/p><p>A minor repair should be performed every six months, and a major repair every year. Only trained professionals should manage, operate, and maintain the fan to ensure safety and prolong service life.<\/p><p>Storage Requirements<\/p><p>When the fan is not in use, it should be stored in a dry, well-ventilated location to prevent moisture damage, corrosion, and structural deterioration.<\/p><p><a href=\"https:\/\/hnytventilator.com\/fr\/\">S\u00e9rie SDF - Ventilateur \u00e0 flux axial en tunnel<\/a> can achieve long-term safe operation only when operators follow proper startup steps, perform regular inspections, and carry out scheduled maintenance to ensure stable and reliable ventilation performance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bc798b4 elementor-widget elementor-widget-image\" data-id=\"6bc798b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div 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href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-minier-2\/\" class=\"elementor-post-info__terms-list-item\">ventilateur minier<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-minier\/\" class=\"elementor-post-info__terms-list-item\">ventilateur minier<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-de-tunnel-2\/\" class=\"elementor-post-info__terms-list-item\">ventilateur de tunnel<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-de-tunnel-2\/\" class=\"elementor-post-info__terms-list-item\">ventilateur de tunnel<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-de-tunnel\/\" class=\"elementor-post-info__terms-list-item\">ventilateur de tunnel<\/a>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element 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value=\"fr\"\/><\/form>\n\t\t<\/search>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-383b72ee elementor-widget elementor-widget-heading\" data-id=\"383b72ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Messages r\u00e9cents<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c2f9541 elementor-grid-1 elementor-posts--thumbnail-left elementor-grid-tablet-1 elementor-grid-mobile-1 elementor-widget elementor-widget-posts\" data-id=\"3c2f9541\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;classic_columns&quot;:&quot;1&quot;,&quot;classic_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;40&quot;,&quot;sizes&quot;:[]},&quot;classic_columns_tablet&quot;:&quot;1&quot;,&quot;classic_columns_mobile&quot;:&quot;1&quot;,&quot;classic_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;classic_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-classic elementor-grid\" role=\"list\">\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-4368 post type-post status-publish format-standard has-post-thumbnail hentry category-news tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-intelligent-local-ventilation-system tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-ventilation-fan tag-tunnel-ventilator\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/nouvelles\/fbcz-30kw-underground-mining-axial-ventilator-fan-successfully-shipped-with-advanced-ventilation-ducts\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img decoding=\"async\" width=\"300\" height=\"240\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/Deliery-of-FBCZ-30KW-underground-mining-axial-ventilator-fan.png?fit=300%2C240&amp;ssl=1\" class=\"attachment-medium size-medium wp-image-4369\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/Deliery-of-FBCZ-30KW-underground-mining-axial-ventilator-fan.png?w=1402&amp;ssl=1 1402w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/Deliery-of-FBCZ-30KW-underground-mining-axial-ventilator-fan.png?resize=300%2C240&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/Deliery-of-FBCZ-30KW-underground-mining-axial-ventilator-fan.png?resize=1030%2C824&amp;ssl=1 1030w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/Deliery-of-FBCZ-30KW-underground-mining-axial-ventilator-fan.png?resize=768%2C615&amp;ssl=1 768w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/Deliery-of-FBCZ-30KW-underground-mining-axial-ventilator-fan.png?resize=15%2C12&amp;ssl=1 15w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/nouvelles\/fbcz-30kw-underground-mining-axial-ventilator-fan-successfully-shipped-with-advanced-ventilation-ducts\/\" >\n\t\t\t\tFBCZ 30KW Underground Mining Axial Ventilator Fan Successfully Shipped with Advanced Ventilation Ducts\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-4356 post type-post status-publish format-standard has-post-thumbnail hentry category-blog tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-intelligent-local-ventilation-system tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-fan-project-on-ecuador tag-tunnel-ventilation-fan tag-tunnel-ventilator\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/blog\/how-to-install-a-mining-underground-axial-flow-fan-step-by-step-guide\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img decoding=\"async\" width=\"300\" height=\"240\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/mining-vitilator.png?fit=300%2C240&amp;ssl=1\" class=\"attachment-medium size-medium wp-image-4358\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/mining-vitilator.png?w=1402&amp;ssl=1 1402w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/mining-vitilator.png?resize=300%2C240&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/mining-vitilator.png?resize=1030%2C824&amp;ssl=1 1030w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/mining-vitilator.png?resize=768%2C615&amp;ssl=1 768w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/mining-vitilator.png?resize=15%2C12&amp;ssl=1 15w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/blog\/how-to-install-a-mining-underground-axial-flow-fan-step-by-step-guide\/\" >\n\t\t\t\tHow to Install a Mining Underground Axial Flow Fan: Step-by-Step Guide\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-4343 post type-post status-publish format-standard has-post-thumbnail hentry category-blog tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-ventilation-fan tag-tunnel-ventilator tag-ventilator-fan-distance-with-10km\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/blog\/how-to-choose-the-right-main-mine-ventilator-axial-or-centrifugal\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"164\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/How-to-Choose-the-Right-Main-Mine-Ventilator-Axial-or-Centrifugal.png?fit=300%2C164&amp;ssl=1\" class=\"attachment-medium size-medium wp-image-4344\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/How-to-Choose-the-Right-Main-Mine-Ventilator-Axial-or-Centrifugal.png?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/How-to-Choose-the-Right-Main-Mine-Ventilator-Axial-or-Centrifugal.png?resize=300%2C164&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/How-to-Choose-the-Right-Main-Mine-Ventilator-Axial-or-Centrifugal.png?resize=768%2C419&amp;ssl=1 768w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/05\/How-to-Choose-the-Right-Main-Mine-Ventilator-Axial-or-Centrifugal.png?resize=18%2C10&amp;ssl=1 18w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/blog\/how-to-choose-the-right-main-mine-ventilator-axial-or-centrifugal\/\" >\n\t\t\t\tHow to Choose the Right Main Mine Ventilator: Axial or Centrifugal?\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-4336 post type-post status-publish format-standard has-post-thumbnail hentry category-blog tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-intelligent-local-ventilation-system tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-ventilation-fan tag-tunnel-ventilator\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/blog\/centrifugal-vs-axial-flow-local-ventilation-fans-which-is-best-for-mining\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2025\/09\/30kw-axial-flow-ventilation-mine-fan.jpg?fit=300%2C225&amp;ssl=1\" class=\"attachment-medium size-medium wp-image-3931\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2025\/09\/30kw-axial-flow-ventilation-mine-fan.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2025\/09\/30kw-axial-flow-ventilation-mine-fan.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2025\/09\/30kw-axial-flow-ventilation-mine-fan.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2025\/09\/30kw-axial-flow-ventilation-mine-fan.jpg?resize=16%2C12&amp;ssl=1 16w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/blog\/centrifugal-vs-axial-flow-local-ventilation-fans-which-is-best-for-mining\/\" >\n\t\t\t\tCentrifugal vs. Axial Flow Local Ventilation Fans: Which Is Best for Mining?\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-4047 post type-post status-publish format-standard has-post-thumbnail hentry category-blog tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-intelligent-local-ventilation-system tag-mining-fan tag-mining-ventilator tag-tunnel-ventilation-fan tag-tunnel-ventilator tag-ventilator-fan-distance-with-10km\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/blog\/how-to-install-an-explosion-proof-mine-fan-safely-and-efficiently-underground\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/12\/delivery-of-75kw-mining-fan.jpg?fit=300%2C225&amp;ssl=1\" class=\"attachment-medium size-medium wp-image-3387\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/12\/delivery-of-75kw-mining-fan.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/12\/delivery-of-75kw-mining-fan.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/12\/delivery-of-75kw-mining-fan.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/12\/delivery-of-75kw-mining-fan.jpg?resize=16%2C12&amp;ssl=1 16w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/blog\/how-to-install-an-explosion-proof-mine-fan-safely-and-efficiently-underground\/\" >\n\t\t\t\tHow to Install an Explosion-Proof Mine Fan Safely and Efficiently Underground?\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-4327 post type-post status-publish format-standard has-post-thumbnail hentry category-news tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-ventilation-fan tag-tunnel-ventilator tag-ventilator-fan-distance-with-10km\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/nouvelles\/delivery-of-18-5kw-underground-mining-ventilator-fans\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/04\/18.5kw-undergound-mining-ventilator-fans-delivery.jpg?fit=300%2C225&amp;ssl=1\" class=\"attachment-medium size-medium wp-image-4328\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/04\/18.5kw-undergound-mining-ventilator-fans-delivery.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/04\/18.5kw-undergound-mining-ventilator-fans-delivery.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/04\/18.5kw-undergound-mining-ventilator-fans-delivery.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2026\/04\/18.5kw-undergound-mining-ventilator-fans-delivery.jpg?resize=16%2C12&amp;ssl=1 16w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/nouvelles\/delivery-of-18-5kw-underground-mining-ventilator-fans\/\" >\n\t\t\t\tDelivery of 18.5kW Underground Mining Ventilator Fans\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ed6aee elementor-widget elementor-widget-heading\" data-id=\"6ed6aee\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Tag Nuages<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51ecc73a elementor-widget elementor-widget-post-info\" data-id=\"51ecc73a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-8acbabb elementor-inline-item\" itemprop=\"about\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-terms\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-post-info__terms-list\">\n\t\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-a-flux-axial\/\" class=\"elementor-post-info__terms-list-item\">Ventilateur axial<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/fbcdz-ventilateur-principal\/\" class=\"elementor-post-info__terms-list-item\">fbcdz ventilateur principal<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-minier-2\/\" class=\"elementor-post-info__terms-list-item\">ventilateur minier<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-minier\/\" class=\"elementor-post-info__terms-list-item\">ventilateur minier<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-de-tunnel-2\/\" class=\"elementor-post-info__terms-list-item\">ventilateur de tunnel<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-de-tunnel-2\/\" class=\"elementor-post-info__terms-list-item\">ventilateur de tunnel<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/ventilateur-de-tunnel\/\" class=\"elementor-post-info__terms-list-item\">ventilateur de tunnel<\/a>, <a href=\"https:\/\/hnytventilator.com\/fr\/tag\/distance-du-ventilateur-avec-10km\/\" class=\"elementor-post-info__terms-list-item\">distance du ventilateur avec 10km<\/a>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3483cd24 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"3483cd24\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5171bc0b\" data-id=\"5171bc0b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4524f3be elementor-widget elementor-widget-heading\" data-id=\"4524f3be\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Produits apparent\u00e9s<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71629c02 elementor-grid-tablet-3 elementor-posts--align-center elementor-grid-3 elementor-grid-mobile-1 elementor-posts--thumbnail-top elementor-invisible elementor-widget elementor-widget-posts\" data-id=\"71629c02\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;classic_columns_tablet&quot;:&quot;3&quot;,&quot;classic_columns&quot;:&quot;3&quot;,&quot;classic_columns_mobile&quot;:&quot;1&quot;,&quot;classic_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:35,&quot;sizes&quot;:[]},&quot;classic_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;classic_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"posts.classic\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-classic elementor-grid\" role=\"list\">\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-1088 post type-post status-publish format-standard has-post-thumbnail hentry category-product tag-axial-flow-fan tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-ventilation-fan tag-ventilator-fan-distance-with-10km\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/product\/ventilateur-de-ventilation-pour-application-dans-les-tunnels-miniers-a-longue-distance\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/1d766897e05de28de03c4c6e5270f39.jpg?fit=750%2C750&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-1177\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/1d766897e05de28de03c4c6e5270f39.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/1d766897e05de28de03c4c6e5270f39.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/1d766897e05de28de03c4c6e5270f39.jpg?resize=80%2C80&amp;ssl=1 80w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/product\/ventilateur-de-ventilation-pour-application-dans-les-tunnels-miniers-a-longue-distance\/\" >\n\t\t\t\tVentilateur pour application dans les tunnels miniers \u00e0 longue distance\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/hnytventilator.com\/fr\/product\/ventilateur-de-ventilation-pour-application-dans-les-tunnels-miniers-a-longue-distance\/\" aria-label=\"Plus d&#039;informations sur Ventilateur de ventilation pour application dans les tunnels d&#039;exploitation mini\u00e8re \u00e0 longue distance\" tabindex=\"-1\" >\n\t\t\tLire la suite \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-1082 post type-post status-publish format-standard has-post-thumbnail hentry category-product tag-axial-flow-fan tag-fbcdz-main-ventilation-fan tag-intelligent-local-ventilation-system tag-mining-fan tag-mining-ventilator tag-tunnel-ventilation-fan tag-tunnel-ventilator\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/product\/systeme-complet-de-ventilation-locale-intelligente\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/fan-system-1.jpg?fit=750%2C750&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-1167\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/fan-system-1.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/fan-system-1.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/fan-system-1.jpg?resize=80%2C80&amp;ssl=1 80w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/product\/systeme-complet-de-ventilation-locale-intelligente\/\" >\n\t\t\t\tSyst\u00e8me complet de ventilation locale intelligente\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/hnytventilator.com\/fr\/product\/systeme-complet-de-ventilation-locale-intelligente\/\" aria-label=\"En savoir plus sur le syst\u00e8me complet de ventilation locale intelligente\" tabindex=\"-1\" >\n\t\t\tLire la suite \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-1076 post type-post status-publish format-standard has-post-thumbnail hentry category-product tag-axial-flow-fan tag-fby-mining-explosion-proof-ventilator tag-fby-mining-fan tag-mining-fan tag-mining-ventilator tag-tunnel-fan tag-tunnel-ventilation-fan tag-ventilator-fan-distance-with-10km\" role=\"listitem\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/hnytventilator.com\/fr\/product\/serie-fby-mine-flameproof-press-in-axial-flow-local-ventilator-fan\/\" tabindex=\"-1\" >\n\t\t\t<div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/mine-fan16-1.jpg?fit=750%2C750&amp;ssl=1\" class=\"attachment-medium_large size-medium_large wp-image-1184\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/mine-fan16-1.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/mine-fan16-1.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/hnytventilator.com\/wp-content\/uploads\/2024\/02\/mine-fan16-1.jpg?resize=80%2C80&amp;ssl=1 80w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/div>\n\t\t<\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h3 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/hnytventilator.com\/fr\/product\/serie-fby-mine-flameproof-press-in-axial-flow-local-ventilator-fan\/\" >\n\t\t\t\tVentilateur local \u00e0 flux axial de la s\u00e9rie FBY pour mines, antid\u00e9flagrant et encastr\u00e9\t\t\t<\/a>\n\t\t<\/h3>\n\t\t\n\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/hnytventilator.com\/fr\/product\/serie-fby-mine-flameproof-press-in-axial-flow-local-ventilator-fan\/\" aria-label=\"Plus d&#039;informations sur le ventilateur local de la s\u00e9rie FBY (Mine Flameproof Press-in Axial Flow Fan)\" tabindex=\"-1\" >\n\t\t\tLire la suite \"\t\t<\/a>\n\n\t\t\t\t<\/div>\n\t\t\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>How Should You Maintain an SDF Series Tunnel Axial Flow Fan for Long-Term Safe Operation?<\/p>","protected":false},"author":2,"featured_media":3849,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"nf_dc_page":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"cybocfi_hide_featured_image":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[13],"tags":[28,21,19,22,20,30],"class_list":["post-4082","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-axial-flow-fan","tag-mining-fan","tag-mining-ventilator","tag-tunnel-fan","tag-tunnel-ventilation-fan","tag-tunnel-ventilator"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.9 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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