{"id":1417,"date":"2019-10-17T18:26:26","date_gmt":"2019-10-17T10:26:26","guid":{"rendered":"https:\/\/www.sevencrane.com\/?p=1417"},"modified":"2022-11-22T17:45:09","modified_gmt":"2022-11-22T09:45:09","slug":"crane-rail-gnawing","status":"publish","type":"post","link":"https:\/\/www.sevencrane.com\/fr\/crane-rail-gnawing\/","title":{"rendered":"SEVENCRANE r\u00e9sout le probl\u00e8me du rongement des rails des ponts roulants et des ponts roulants pour les clients"},"content":{"rendered":"<p>SEVENCRANE a re\u00e7u des demandes concernant les roues de grue et les rails de grue du pont roulant\/pont roulant. Le client avait d\u00e9j\u00e0 achet\u00e9 le pont roulant aupr\u00e8s d&#039;un autre fournisseur, mais avait constat\u00e9 que les rails et les roues de la grue \u00e9taient gravement endommag\u00e9s peu de temps apr\u00e8s son utilisation, ce qui affectait la production et l&#039;utilisation et causait une perte importante. SEVENCRANE a expliqu\u00e9 la raison des dommages au client apr\u00e8s avoir connu et enqu\u00eat\u00e9 sur la situation r\u00e9elle de la grue du client. Le ph\u00e9nom\u00e8ne de rongement des rails des ponts roulants est en partie d\u00fb \u00e0 la mauvaise qualit\u00e9 et en partie aux facteurs objectifs d&#039;une mauvaise utilisation.<\/p>\n\n\n\n<p>SEVENCRANE a fourni \u00e0 nos clients des roues et des rails de grue de haute qualit\u00e9 et les a syst\u00e9matiquement form\u00e9s \u00e0 l&#039;utilisation et \u00e0 l&#039;entretien appropri\u00e9s des ponts roulants. De nombreux clients ont exprim\u00e9 leur gratitude et leurs \u00e9loges \u00e0 SEVENCRANE et ont sign\u00e9 des accords de coop\u00e9ration \u00e0 long terme.<\/p>\n\n\n\n<p>Afin d&#039;aider les clients \u00e0 r\u00e9duire le risque de temps d&#039;arr\u00eat d\u00fb au rongement des rails des ponts roulants, \u00e0 r\u00e9duire les pertes et les co\u00fbts de maintenance, SEVENCRANE a sp\u00e9cialement tri\u00e9 les raisons du rongement des rails des ponts roulants pour que les clients puissent les lire et les apprendre.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Raisons du rongement des rails des ponts roulants<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane.jpg\" alt=\"probl\u00e8me de rongement des rails du pont roulant\" class=\"wp-image-3873 lazyload\"\/><noscript><img decoding=\"async\" width=\"722\" height=\"255\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane.jpg\" alt=\"probl\u00e8me de rongement des rails du pont roulant\" class=\"wp-image-3873 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane.jpg 722w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173347\/rail-gnawing-problem-of-overhead-crane-300x106.jpg 300w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/><\/noscript><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">1. Impact des roues de la grue. <\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price.jpg\" alt=\"composants du prix du pont roulant\" class=\"wp-image-3868 size-full lazyload\"\/><noscript><img decoding=\"async\" width=\"923\" height=\"756\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price.jpg\" alt=\"composants du prix du pont roulant\" class=\"wp-image-3868 size-full lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price.jpg 923w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price-300x246.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173322\/components-of-bridge-crane-price-768x629.jpg 768w\" sizes=\"(max-width: 923px) 100vw, 923px\" \/><\/noscript><\/figure><div class=\"wp-block-media-text__content\">\n<p>Premi\u00e8rement, en raison d&#039;erreurs de fabrication, d&#039;une usure in\u00e9gale et d&#039;un remplacement unilat\u00e9ral lors de la maintenance, les diam\u00e8tres des roues des deux c\u00f4t\u00e9s sont in\u00e9gaux. Lorsqu&#039;on roule \u00e0 la m\u00eame vitesse, les d\u00e9placements des deux c\u00f4t\u00e9s sont in\u00e9gaux, et le c\u00f4t\u00e9 avec de grands diam\u00e8tres avancera progressivement, ce qui entra\u00eenera une asynchronie, qui am\u00e8nera la carrosserie \u00e0 s&#039;incliner et \u00e0 ronger les rails. Deuxi\u00e8mement, la position d&#039;installation des quatre roues n&#039;est pas aux quatre coins du rectangle et le centre des roues du m\u00eame c\u00f4t\u00e9 n&#039;est pas en ligne droite, ce qui forme la d\u00e9viation de l&#039;axe des roues et provoque le rongement des rails. . <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">2. Impact ferroviaire. <\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact.jpg\" alt=\"Impact ferroviaire\" class=\"wp-image-3874 size-full lazyload\"\/><noscript><img decoding=\"async\" width=\"964\" height=\"648\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact.jpg\" alt=\"Impact ferroviaire\" class=\"wp-image-3874 size-full lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact.jpg 964w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact-300x202.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173351\/Rail-impact-768x516.jpg 768w\" sizes=\"(max-width: 964px) 100vw, 964px\" \/><\/noscript><\/figure><div class=\"wp-block-media-text__content\">\n<p>Premi\u00e8rement, parce que la pose de la voie n&#039;est pas standard, la courbure horizontale est trop importante et l&#039;erreur de rectitude est sup\u00e9rieure \u00e0 2 mm, ce qui entra\u00eene le rongement du segment de voie fixe.  <\/p>\n\n\n\n<p>Deuxi\u00e8mement, l&#039;\u00e9cartement des voies est trop grand, le bord ext\u00e9rieur des roues ronge le rail ; \u00e0 l&#039;inverse, le bord int\u00e9rieur de la roue ronge le rail.  <\/p>\n\n\n\n<p>Troisi\u00e8mement, la diff\u00e9rence de hauteur verticale entre les bandes de roulement sur un m\u00eame tron\u00e7on des deux voies est sup\u00e9rieure \u00e0 15 mm, ce qui provoque le d\u00e9rapage du chariot et le rongement des rails.  <\/p>\n\n\n\n<p>Quatri\u00e8mement, le parall\u00e9lisme des deux voies est excessif, formant une forme de \u00ab huit caract\u00e8res \u00bb ou de trompette, provoquant un rongement des rails.  <\/p>\n\n\n\n<p>\n\nCinqui\u00e8mement, les fondations de la voie ne sont pas solides et, lorsqu&#039;elles sont charg\u00e9es, elles coulent, ce qui ronge les rails.\n\n<\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">3. Impact de la d\u00e9formation du pont roulant. <\/h4>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact.jpg\" alt=\"Impact de la d\u00e9formation du pont roulant\" class=\"wp-image-3869 size-full lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"747\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact.jpg\" alt=\"Impact de la d\u00e9formation du pont roulant\" class=\"wp-image-3869 size-full lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact.jpg 1024w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact-300x219.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173329\/Crane-bridge-deformation-impact-768x560.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure><div class=\"wp-block-media-text__content\">\n<p>Premi\u00e8rement, les d\u00e9formations de la charpente du pont provoquent la flexion horizontale de la poutre d&#039;extr\u00e9mit\u00e9. Lorsque la longueur diagonale d\u00e9passe 5 mm ou plus, la port\u00e9e d\u00e9passe la diff\u00e9rence. S&#039;il est positif, il ronge la jante int\u00e9rieure de la roue ; au contraire, il ronge la jante ext\u00e9rieure de la roue.  <\/p>\n\n\n\n<p>Deuxi\u00e8mement, la flexion horizontale de la poutre d&#039;extr\u00e9mit\u00e9 fait d\u00e9vier la roue horizontalement, de sorte que l&#039;axe central de la roue et l&#039;axe central de la voie ne soient pas en ligne droite, formant la m\u00eame d\u00e9viation et provoquant un rongement du rail.  <\/p>\n\n\n\n<p>Troisi\u00e8mement, la d\u00e9viation verticale du cadre du pont provoque la d\u00e9viation verticale de la roue, ce qui provoque l&#039;angle entre la ligne m\u00e9diane de la bande de roulement et la ligne verticale et modifie le rayon de roulement de la roue. Apr\u00e8s le chargement, la d\u00e9viation verticale d&#039;un c\u00f4t\u00e9 de la roue augmente progressivement, tandis que la d\u00e9viation verticale de l&#039;autre c\u00f4t\u00e9 diminue, ce qui entra\u00eene un rayon de roulement diff\u00e9rent, entra\u00eenant un rongement du rail. <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">4. La vitesse diff\u00e9rente de deux moteurs ou le r\u00e9glage diff\u00e9rent du jeu entre les deux freins dans le m\u00e9canisme de roulement du chariot-grue entra\u00een\u00e9 s\u00e9par\u00e9ment entra\u00eenent un moment et un pas de freinage diff\u00e9rents, ce qui entra\u00eene un rongement du rail.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane.jpg\" alt=\"moteur de grue\" class=\"wp-image-3870 lazyload\"\/><noscript><img decoding=\"async\" width=\"520\" height=\"482\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane.jpg\" alt=\"moteur de grue\" class=\"wp-image-3870 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane.jpg 520w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173334\/motor-of-crane-300x278.jpg 300w\" sizes=\"(max-width: 520px) 100vw, 520px\" \/><\/noscript><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">5. L&#039;\u00e9cart entre les deux extr\u00e9mit\u00e9s de l&#039;accouplement du m\u00e9canisme de transmission est trop grand, ce qui fait que les roues ne peuvent pas \u00eatre entra\u00een\u00e9es en m\u00eame temps et provoque le rongement des rails.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane.jpg\" alt=\"pi\u00e8ces de grue populaire\" class=\"wp-image-3872 lazyload\"\/><noscript><img decoding=\"async\" width=\"677\" height=\"452\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane.jpg\" alt=\"pi\u00e8ces de grue populaire\" class=\"wp-image-3872 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane.jpg 677w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173343\/parts-of-popular-crane-300x200.jpg 300w\" sizes=\"(max-width: 677px) 100vw, 677px\" \/><\/noscript><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">6. De l&#039;huile ou des d\u00e9bris sur la bande de roulement de la voie peuvent faire tourner la roue \u00e0 des vitesses diff\u00e9rentes des deux c\u00f4t\u00e9s, ce qui peut \u00e9galement entra\u00eener un rongement du rail.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips.jpg\" alt=\"conseils sur les ponts roulants\" class=\"wp-image-3871 lazyload\"\/><noscript><img decoding=\"async\" width=\"687\" height=\"609\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips.jpg\" alt=\"conseils sur les ponts roulants\" class=\"wp-image-3871 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips.jpg 687w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/10\/22173339\/overhead-crane-tips-300x266.jpg 300w\" sizes=\"(max-width: 687px) 100vw, 687px\" \/><\/noscript><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center\"><strong> Produits qui pourraient vous int\u00e9resser <\/strong><\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane.jpg\" alt=\"grue EOT suspendue\" data-id=\"3160\" data-full-url=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane.jpg\" data-link=\"https:\/\/www.sevencrane.com\/product\/european-type-single-girder-overhead-crane\/underslung-eot-crane\/\" class=\"wp-image-3160 lazyload\"\/><noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane.jpg\" alt=\"grue EOT suspendue\" data-id=\"3160\" data-full-url=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane.jpg\" data-link=\"https:\/\/www.sevencrane.com\/product\/european-type-single-girder-overhead-crane\/underslung-eot-crane\/\" class=\"wp-image-3160 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane.jpg 800w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane-300x225.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane-768x576.jpg 768w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane-428x321.jpg 428w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane-345x258.jpg 345w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2019\/04\/09150258\/underslung-eot-crane-253x190.jpg 253w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/noscript><figcaption class=\"blocks-gallery-item__caption\"><a href=\"https:\/\/www.sevencrane.com\/fr\/product\/european-type-single-girder-overhead-crane\/\">https:\/\/www.sevencrane.com\/product\/european-type-single-girder-overhead-crane\/<\/a><\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg\" alt=\"Pont roulant 32T\" data-id=\"3433\" data-full-url=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg\" data-link=\"https:\/\/www.sevencrane.com\/32ton-double-girder-overhead-crane-for-workshop\/32t-overhead-crane\/\" class=\"wp-image-3433 lazyload\"\/><noscript><img decoding=\"async\" width=\"750\" height=\"563\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg\" alt=\"Pont roulant 32T\" data-id=\"3433\" data-full-url=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg\" data-link=\"https:\/\/www.sevencrane.com\/32ton-double-girder-overhead-crane-for-workshop\/32t-overhead-crane\/\" class=\"wp-image-3433 lazyload\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane.jpg 750w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-300x225.jpg 300w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-428x321.jpg 428w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-345x258.jpg 345w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2022\/06\/17105256\/32T-overhead-crane-253x190.jpg 253w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/noscript><figcaption class=\"blocks-gallery-item__caption\"><a href=\"https:\/\/www.sevencrane.com\/fr\/product\/double-girder-overhead-crane\/\">https:\/\/www.sevencrane.com\/product\/double-girder-overhead-crane\/<\/a><\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2021\/07\/18150947\/250kg-pillar-jib-crane.jpg\" alt=\"grue \u00e0 fl\u00e8che sur pilier 250kg\" data-id=\"3637\" data-full-url=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2021\/07\/18150947\/250kg-pillar-jib-crane.jpg\" data-link=\"https:\/\/www.sevencrane.com\/some-precautions-for-pillar-jib-crane\/250kg-pillar-jib-crane\/\" class=\"wp-image-3637 lazyload\"\/><noscript><img decoding=\"async\" width=\"750\" height=\"545\" src=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2021\/07\/18150947\/250kg-pillar-jib-crane.jpg\" alt=\"grue \u00e0 fl\u00e8che sur pilier 250kg\" data-id=\"3637\" data-full-url=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2021\/07\/18150947\/250kg-pillar-jib-crane.jpg\" 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