{"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\/sv\/crane-rail-gnawing\/","title":{"rendered":"SEVENCRANE l\u00f6ser problemet med gnagande av brokran\/takkranskena f\u00f6r kunder"},"content":{"rendered":"<p>SEVENCRANE fick f\u00f6rfr\u00e5gningar om kranhjul och kranskenor p\u00e5 brokran\/ traverskran. Kunden k\u00f6pte traverskranen fr\u00e5n en annan leverant\u00f6r tidigare, men uppt\u00e4ckte att kranens kranskenor och hjul skadades allvarligt kort efter anv\u00e4ndning, vilket p\u00e5verkade produktionen och anv\u00e4ndningen och orsakade en stor f\u00f6rlust. SEVENCRANE f\u00f6rklarade orsaken till skadan f\u00f6r kunden efter att ha k\u00e4nt till och unders\u00f6kt den faktiska situationen f\u00f6r kundens kran. Fenomenet med gnagande av traversr\u00e4ls beror dels p\u00e5 den d\u00e5liga kvaliteten och dels p\u00e5 de objektiva faktorerna f\u00f6r felaktig anv\u00e4ndning.<\/p>\n\n\n\n<p>SEVENCRANE f\u00f6rs\u00e5g v\u00e5ra kunder med h\u00f6gkvalitativa kranhjul och kranskenor och utbildade dem systematiskt i korrekt anv\u00e4ndning och underh\u00e5ll av brokranar. M\u00e5nga kunder uttryckte sin tacksamhet och ber\u00f6m till SEVENCRANE och undertecknade l\u00e5ngsiktiga samarbetsavtal.<\/p>\n\n\n\n<p>F\u00f6r att hj\u00e4lpa kunder att minska risken f\u00f6r stillest\u00e5nd p\u00e5 grund av r\u00e4lsgnagande av brokranar, minska f\u00f6rluster och underh\u00e5llskostnader, sorterade SEVENCRANE speciellt ut Reasons f\u00f6r r\u00e4lsgnagning av traverskranar f\u00f6r kunderna att l\u00e4sa och l\u00e4ra sig.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Orsaker till r\u00e4lsgnagande av traverser<\/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=\"r\u00e4lsgnagande problem med travers\" 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=\"r\u00e4lsgnagande problem med travers\" 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. Kranhjulsp\u00e5verkan. <\/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 av 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 av 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>F\u00f6r det f\u00f6rsta, p\u00e5 grund av tillverkningsfel, oj\u00e4mnt slitage och ensidigt utbyte under underh\u00e5ll, \u00e4r hjuldiametrarna p\u00e5 b\u00e5da sidor olika. N\u00e4r man k\u00f6r i samma hastighet \u00e4r resorna p\u00e5 b\u00e5da sidor oj\u00e4mna och sidan med stora diametrar kommer att avancera gradvis, vilket resulterar i asynkron, vilket g\u00f6r att kroppen snett och gnager r\u00e4lsen. F\u00f6r det andra \u00e4r monteringspositionen f\u00f6r de fyra hjulen inte i rektangelns fyra h\u00f6rn, och mitten av hjulen p\u00e5 samma sida \u00e4r inte i en rak linje, vilket bildar avb\u00f6jningen av hjulens mittlinje och orsakar r\u00e4lsgnagning . <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">2. R\u00e4lsp\u00e5verkan. <\/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=\"J\u00e4rnv\u00e4gsp\u00e5verkan\" 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=\"J\u00e4rnv\u00e4gsp\u00e5verkan\" 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>F\u00f6r det f\u00f6rsta, eftersom sp\u00e5rl\u00e4ggningen inte \u00e4r standard, \u00e4r den horisontella b\u00f6jningen f\u00f6r stor och rakhetsfelet mer \u00e4n 2 mm, vilket resulterar i att det fasta sp\u00e5rsegmentet gnager.  <\/p>\n\n\n\n<p>F\u00f6r det andra \u00e4r sp\u00e5rvidden f\u00f6r stor, den yttre hjulkanten gnager skenan; omv\u00e4nt, den inre hjulkanten gnager skenan.  <\/p>\n\n\n\n<p>F\u00f6r det tredje \u00e4r den vertikala h\u00f6jdskillnaden mellan slitbanorna p\u00e5 samma sektion av de tv\u00e5 sp\u00e5ren mer \u00e4n 15 mm, vilket g\u00f6r att vagnen och r\u00e4lsen gnager.  <\/p>\n\n\n\n<p>F\u00f6r det fj\u00e4rde \u00e4r parallelliteten mellan de tv\u00e5 sp\u00e5ren \u00f6verdriven, och bildar en &quot;\u00e5tta tecken&quot; eller trumpetformad, vilket orsakar r\u00e4lsgnag.  <\/p>\n\n\n\n<p>\n\nF\u00f6r det femte \u00e4r sp\u00e5rfundamentet inte solid, och n\u00e4r det belastas kommer det att sjunka, vilket resulterar i r\u00e4lsgnag.\n\n<\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">3. Kranbro deformation p\u00e5verkan. <\/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=\"Kranbro deformation p\u00e5verkan\" 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=\"Kranbro deformation p\u00e5verkan\" 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>F\u00f6r det f\u00f6rsta orsakar deformationerna av broramen den horisontella b\u00f6jningen av \u00e4ndbalken. N\u00e4r diagonall\u00e4ngden \u00f6verstiger 5 mm eller mer g\u00f6r det att sp\u00e4nnvidden \u00f6verstiger skillnaden. Om den \u00e4r positiv gnager den p\u00e5 hjulets inre f\u00e4lg; tv\u00e4rtom, det gnager den yttre f\u00e4lgen p\u00e5 hjulet.  <\/p>\n\n\n\n<p>F\u00f6r det andra g\u00f6r den horisontella b\u00f6jningen av \u00e4ndbalken att hjulet avviker horisontellt, s\u00e5 att hjulets mittlinje och sp\u00e5rets mittlinje inte \u00e4r i en rak linje, vilket bildar samma avvikelse och orsakar r\u00e4lsgnag.  <\/p>\n\n\n\n<p>F\u00f6r det tredje orsakar den vertikala avb\u00f6jningen av broramen den vertikala avb\u00f6jningen av hjulet, vilket g\u00f6r att vinkeln mellan slitbanans mittlinje och den vertikala linjen \u00e4ndrar hjulets rullningsradie. Efter lastning \u00f6kar den vertikala nedb\u00f6jningen av en sida av hjulet gradvis, medan den vertikala nedb\u00f6jningen av den andra sidan minskar, vilket resulterar i olika rullradie, vilket resulterar i r\u00e4lsgnag. <\/p>\n<\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">4. Den olika hastigheten hos tv\u00e5 motorer eller den olika justeringen av spelet mellan de tv\u00e5 bromsarna i k\u00f6rmekanismen f\u00f6r den separat drivna kranvagnen resulterar i olika bromsmoment och steg, vilket resulterar i r\u00e4lsgnag.<\/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. Spalten mellan de tv\u00e5 \u00e4ndarna av transmissionsmekanismens koppling \u00e4r f\u00f6r stort, vilket g\u00f6r att hjulen inte kan k\u00f6ras samtidigt och orsakar r\u00e4lsgnag.<\/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=\"delar av popul\u00e4ra 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=\"delar av popul\u00e4ra 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. Olja eller skr\u00e4p p\u00e5 sp\u00e5rets slitbana kan g\u00f6ra att hjulet g\u00e5r i olika hastigheter p\u00e5 b\u00e5da sidor, vilket ocks\u00e5 kan leda till r\u00e4lsgnag.<\/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=\"spetsar p\u00e5 traversen\" 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=\"spetsar p\u00e5 traversen\" 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 vara intresserad av <\/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=\"underslungad 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=\"underslungad 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\/sv\/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\/sv\/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 pelarkran\" 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 pelarkran\" 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\/\" 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Kunden k\u00f6pte traverskranen fr\u00e5n en annan leverant\u00f6r tidigare, men fann att kranens kranskenor och hjul skadades allvarligt kort efter anv\u00e4ndning, vilket p\u00e5verkade produktionen och anv\u00e4ndningen och orsakade en stor f\u00f6rlust. 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