{"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\/da\/crane-rail-gnawing\/","title":{"rendered":"SEVENCRANE l\u00f8ser problemet med brokran\/overheadkranskinne, der gnaver for kunder"},"content":{"rendered":"<p>SEVENCRANE modtog henvendelser om kranhjul og kranskinner p\u00e5 brokran\/overl\u00f8bskran. Kunden har tidligere k\u00f8bt traverskranen hos en anden leverand\u00f8r, men konstaterede, at kranens kranskinner og hjul kort efter brug blev alvorligt beskadiget, hvilket p\u00e5virkede produktionen og brugen og medf\u00f8rte et stort tab. SEVENCRANE forklarede \u00e5rsagen til skaden for kunden efter at have kendt og unders\u00f8gt den faktiske situation for kundens kran. F\u00e6nomenet med at gnave traversskinne skyldes dels den d\u00e5rlige kvalitet og dels de objektive faktorer ved ukorrekt brug.<\/p>\n\n\n\n<p>SEVENCRANE forsynede vores kunder med h\u00f8jkvalitets kranhjul og kranskinner og tr\u00e6nede dem systematisk i korrekt brug og vedligeholdelse af brokraner. Mange kunder udtrykte deres taknemmelighed og ros til SEVENCRANE og underskrev langsigtede samarbejdsaftaler.<\/p>\n\n\n\n<p>For at hj\u00e6lpe kunderne med at reducere risikoen for nedetid p\u00e5 grund af skinnegnavning af brokraner, reducere tab og vedligeholdelsesomkostninger, sorterede SEVENCRANE specielt \u00e5rsagerne til skinnegnavning af traverskraner, som kunderne kunne l\u00e6se og l\u00e6re.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u00c5rsager til skinnegnavning af traverskraner<\/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=\"skinnegnaveproblem af traverskran\" 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=\"skinnegnaveproblem af traverskran\" 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. Kranhjulp\u00e5virkning. <\/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=\"komponenter af bro kran pris\" 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=\"komponenter af bro kran pris\" 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>For det f\u00f8rste, p\u00e5 grund af fabrikationsfejl, uj\u00e6vn slitage og ensidig udskiftning under vedligeholdelse, er hjuldiametrene p\u00e5 begge sider uens. N\u00e5r man k\u00f8rer med samme hastighed, er turene p\u00e5 begge sider ulige, og siden med store diametre vil rykke gradvist frem, hvilket resulterer i asynkroni, som f\u00e5r kroppen til at sk\u00e6ve og gnave skinnerne. For det andet er monteringspositionen af de fire hjul ikke i de fire hj\u00f8rner af rektanglet, og midten af hjulene p\u00e5 samme side er ikke i en lige linje, hvilket danner afb\u00f8jningen af hjulenes midterlinje og for\u00e5rsager skinnegnav . <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">2. Skinnep\u00e5virkning. <\/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=\"Skinnep\u00e5virkning\" 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=\"Skinnep\u00e5virkning\" 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>For det f\u00f8rste, fordi sporl\u00e6gningen ikke er standard, er den vandrette b\u00f8jning for stor, og rethedsfejlen er mere end 2 mm, hvilket resulterer i, at det faste sporsegment gnaver.  <\/p>\n\n\n\n<p>For det andet er sporvidden for stor, den ydre hjulkant gnaver skinnen; omvendt gnaver den inderste hjulkant skinnen.  <\/p>\n\n\n\n<p>For det tredje er den lodrette h\u00f8jdeforskel mellem trinene p\u00e5 samme sektion af de to spor mere end 15 mm, hvilket f\u00e5r sideslip af vognen og skinnerne til at gnave.  <\/p>\n\n\n\n<p>For det fjerde er paralleliteten mellem de to spor overdreven, idet den danner en &quot;otte-karakter&quot; eller trompetformet, hvilket for\u00e5rsager skinnegnav.  <\/p>\n\n\n\n<p>\n\nFor det femte er sporfundamentet ikke solidt, og n\u00e5r det belastes, vil det synke, hvilket resulterer i skinnegnav.\n\n<\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">3. Kranbroens deformationsp\u00e5virkning. <\/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=\"Kranbroens deformationsp\u00e5virkning\" 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=\"Kranbroens deformationsp\u00e5virkning\" 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>For det f\u00f8rste for\u00e5rsager deformationerne af brorammen den vandrette b\u00f8jning af endebj\u00e6lken. N\u00e5r diagonall\u00e6ngden overstiger 5 mm eller mere, f\u00e5r det sp\u00e6ndvidden til at overstige forskellen. Hvis den er positiv, gnaver den inderkanten af hjulet; tv\u00e6rtimod gnaver den den yderste f\u00e6lg p\u00e5 hjulet.  <\/p>\n\n\n\n<p>For det andet bevirker den vandrette b\u00f8jning af endebj\u00e6lken, at hjulet afviger vandret, s\u00e5ledes at hjulets midterlinje og sporets midterlinje ikke er i en lige linje, hvilket danner den samme afvigelse og for\u00e5rsager skinnegnav.  <\/p>\n\n\n\n<p>For det tredje for\u00e5rsager den lodrette afb\u00f8jning af brorammen den lodrette afb\u00f8jning af hjulet, hvilket bevirker, at vinklen mellem slidbanens midterlinje og den lodrette linje \u00e6ndrer hjulets rulleradius. Efter l\u00e6sning \u00f8ges den lodrette afb\u00f8jning af den ene side af hjulet gradvist, mens den lodrette afb\u00f8jning af den anden side aftager, hvilket resulterer i forskellig rulleradius, hvilket resulterer i skinnegnav. <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">4. De forskellige hastigheder p\u00e5 to motorer eller den forskellige justering af frigangen mellem de to bremser i l\u00f8bemekanismen p\u00e5 den kranvogn, der k\u00f8res separat, resulterer i forskelligt bremsemoment og trin, hvilket resulterer i skinnegnav.<\/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=\"kranens motor\" 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=\"kranens motor\" 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. Mellemrummet mellem de to ender af koblingen til transmissionsmekanismen er for stort, hvilket medf\u00f8rer, at hjulene ikke kan k\u00f8res samtidig og for\u00e5rsager skinnegnav.<\/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=\"dele af popul\u00e6r kran\" 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=\"dele af popul\u00e6r kran\" 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. Olie eller affald p\u00e5 sporets slidbane kan f\u00e5 hjulet til at k\u00f8re med forskellige hastigheder p\u00e5 begge sider, hvilket ogs\u00e5 kan f\u00f8re til skinnegnav.<\/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=\"topkranspidser\" 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=\"topkranspidser\" 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> Produkter du kan v\u00e6re interesseret i <\/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=\"underslynget eot kran\" 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=\"underslynget eot kran\" 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\/da\/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=\"32T traverskran\" 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=\"32T traverskran\" 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\/da\/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=\"250 kg s\u00f8jle svingkran\" 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=\"250 kg s\u00f8jle svingkran\" 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\" srcset=\"https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2021\/07\/18150947\/250kg-pillar-jib-crane.jpg 750w, https:\/\/d3fnmw4lwrx8lm.cloudfront.net\/wp-content\/uploads\/2021\/07\/18150947\/250kg-pillar-jib-crane-300x218.jpg 300w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/noscript><figcaption class=\"blocks-gallery-item__caption\"><a href=\"https:\/\/www.sevencrane.com\/da\/product\/bz-type-pillar-jib-crane\/\">https:\/\/www.sevencrane.com\/product\/bz-type-pillar-jib-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\/02\/17155455\/25t-double-girder-gantry-crane.jpg\" alt=\"25 tons dobbeltbj\u00e6lke 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Kunden har tidligere k\u00f8bt traverskranen hos en anden leverand\u00f8r, men konstaterede, at kranens kranskinner og hjul kort efter brug blev alvorligt beskadiget, hvilket p\u00e5virkede produktionen og brugen og medf\u00f8rte et stort tab. 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