{"id":11917,"date":"2026-07-07T07:11:30","date_gmt":"2026-07-07T07:11:30","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11917"},"modified":"2026-07-07T07:11:35","modified_gmt":"2026-07-07T07:11:35","slug":"overhead-crane-wire-rope-selection","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/da\/posts\/overhead-crane-wire-rope-selection\/","title":{"rendered":"Valg af wire til traverskraner: Den komplette guide til sikkert tromle- og skivedesign"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Indholdsfortegnelse<\/p><nav><ul><li><a href=\"#1-scope\">1. Anvendelsesomr\u00e5de<\/a><\/li><li><a href=\"#2-overhead-crane-wire-rope-minimum-safety-factor-zp\">2. Minimum sikkerhedsfaktor Zp for wire til traverskraner<\/a><\/li><li><a href=\"#3-overhead-crane-wire-rope-selection\">3. Valg af wire til traverskraner<\/a><ul><li><a href=\"#3-1-minimum-breaking-force\">3.1 Minimum brydekraft<\/a><\/li><li><a href=\"#3-2-maximum-fleet-angle\">3.2 Maksimal fl\u00e5devinkel<\/a><\/li><li><a href=\"#3-3-maximum-service-temperature-for-wire-rope\">3.3 Maksimal driftstemperatur for st\u00e5lwire<\/a><\/li><\/ul><\/li><li><a href=\"#4-overhead-crane-drum-and-sheave-selection\">4. Valg af tromle og skive til traverskran<\/a><ul><li><a href=\"#4-1-drum-type-and-winding-direction\">4.1 Tromletype og viklingsretning<\/a><\/li><li><a href=\"#4-2-groove-radius-and-sheave-material\">4.2 Spiralradius og skivemateriale<\/a><\/li><li><a href=\"#4-3-minimum-drum-and-sheave-diameter\">4.3 Minimum tromle- og skivediameter<\/a><\/li><\/ul><\/li><li><a href=\"#5-special-operating-conditions\">5. S\u00e6rlige driftsforhold<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>St\u00e5ltov, <a href=\"https:\/\/www.kscranegroup.com\/da\/crane-parts\/wire-drum.html\/\">trommer<\/a>, og skiver er kernekomponenterne i enhver traverskran eller l\u00f8ftemekanisme. Hvilken minimumssikkerhedsfaktor skal du bruge, n\u00e5r du specificerer disse komponenter? Hvordan beregner du den n\u00f8dvendige minimumsbrudkraft? Hvilken diameter skal din tromle og skive have?<\/p>\n\n\n\n<p>Valg af st\u00e5lwire til traverskraner forklaret med GB\/T 34529-2017 (ISO 16625). L\u00e6r, hvordan du beregner den minimale brudkraft, v\u00e6lger den korrekte sikkerhedsfaktor for st\u00e5lwire, bestemmer tromle- og skivediametre, styrer fl\u00e5devinkler, v\u00e6lger rilledimensioner og optimerer st\u00e5lwirens ydeevne til traverskraner og taljer.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1928\" height=\"816\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Overhead-crane-european-style-lifting-mechanism.png\" alt=\"\" class=\"wp-image-11907\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Overhead-crane-european-style-lifting-mechanism.png 1928w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/1Figure-1-Overhead-crane-european-style-lifting-mechanism-1536x650.png 1536w\" sizes=\"(max-width: 1928px) 100vw, 1928px\" \/><figcaption class=\"wp-element-caption\"><em>Figur 1 L\u00f8ftemekanisme i europ\u00e6isk stil<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-scope\">1. Anvendelsesomr\u00e5de<\/h2>\n\n\n\n<p>Denne standard g\u00e6lder for f\u00f8lgende kran- og taljetyper (de fleste er defineret i ISO 4306-1, svarende til GB\/T 6974.1-2008):<\/p>\n\n\n\n<ul>\n<li>Brokraner (overheadkraner)<\/li>\n\n\n\n<li>Wirehejs<\/li>\n\n\n\n<li>Portal- eller semiportalkraner<\/li>\n\n\n\n<li>Portal- eller semiportalkraner<\/li>\n\n\n\n<li>Kabelkraner og portalkabelkraner (kun l\u00f8ftemekanisme og l\u00f8bekats k\u00f8remekanisme)<\/li>\n\n\n\n<li>Mobilkraner<\/li>\n\n\n\n<li>T\u00e5rnkraner<\/li>\n\n\n\n<li>Jernbanekraner<\/li>\n\n\n\n<li>Flydende kraner<\/li>\n\n\n\n<li>D\u00e6kkraner<\/li>\n\n\n\n<li>Boret\u00e5rnkraner og kabellignende boret\u00e5rnkraner<\/li>\n\n\n\n<li>Stive afstivede borerigskraner<\/li>\n\n\n\n<li>Svingskraner (s\u00f8jle-, bom-, v\u00e6g- eller cykelkraner)<\/li>\n\n\n\n<li>Generelle offshore kraner<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-overhead-crane-wire-rope-minimum-safety-factor-zp\">2. Minimum sikkerhedsfaktor Zp for wire til traverskraner<\/h2>\n\n\n\n<p>Den minimale sikkerhedsfaktor for et st\u00e5lwire til en traverskran afh\u00e6nger af mekanismens arbejdsopgave, wireanvendelsen, wirearrangementet og wiretypen.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1832\" height=\"859\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Table-1-Minimum-safety-factors-for-overhead-cranes-and-hoists-Source-GBT-34529-2017.png\" alt=\"\" class=\"wp-image-11908\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Table-1-Minimum-safety-factors-for-overhead-cranes-and-hoists-Source-GBT-34529-2017.png 1832w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/2Table-1-Minimum-safety-factors-for-overhead-cranes-and-hoists-Source-GBT-34529-2017-1536x720.png 1536w\" sizes=\"(max-width: 1832px) 100vw, 1832px\" \/><figcaption class=\"wp-element-caption\"><em>Tabel 1 Minimumssikkerhedsfaktorer for kraner (eksklusive mobilkraner) og taljer (Kilde: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Punkterne 1-5 stammer fra GB\/T 3811-2008, tabel 44; punkterne 6-9 stammer fra GB\/T 34529-2017 og GB\/T 8706-2017.<\/p>\n\n\n\n<p><strong>Vigtige supplerende noter:<\/strong><\/p>\n\n\n\n<ol>\n<li>For st\u00e5lwirer, der h\u00e5ndterer farlige belastninger, skal du v\u00e6lge sikkerhedsfaktoren fra tabellen p\u00e5 <strong>et arbejdsniveau h\u00f8jere<\/strong> end designklassificeringen.<\/li>\n\n\n\n<li>For metallurgiske kraner og havnecontainerkraner med mekanismeopgaver M7 eller M8, a <strong>lidt lavere arbejdsarbejdsklassificering<\/strong> kan bruges til valg af st\u00e5lwire, forudsat at wirens forringelse kan overv\u00e5ges under brug for at sikre sikker brug og rettidig udskiftning.<\/li>\n\n\n\n<li><strong>Metallurgiske kraner<\/strong>: den minimale sikkerhedsfaktor m\u00e5 ikke v\u00e6re mindre end <strong>7.1<\/strong>.<\/li>\n\n\n\n<li><strong>Havnecontainerkraner<\/strong>Minimumssikkerhedsfaktoren for hovedhejsetove og l\u00f8bekatter\u00f8ve m\u00e5 ikke v\u00e6re mindre end <strong>6<\/strong>.<\/li>\n\n\n\n<li>St\u00e5lwirer til teleskopbomme skal have en sikkerhedsfaktor p\u00e5 mindst 4.<\/li>\n\n\n\n<li><strong>Standard st\u00e5lwire<\/strong> \u2014 En samlebetegnelse for &quot;enkeltlagsreb&quot; og &quot;parallellukket reb&quot;, ogs\u00e5 kaldet &quot;ikke-rotationsbestandigt reb&quot;.<\/li>\n\n\n\n<li><strong>Rotationsbestandigt st\u00e5lwire<\/strong> \u2014 Et flertr\u00e5det reb, der producerer reduceret drejningsmoment eller rotation ved belastning. Rotationsbestandige reb best\u00e5r generelt af mindst to lag af tr\u00e5de lagt spiralformet omkring en st\u00e5ltr\u00e5dskerne eller fiberkerne, hvor de ydre tr\u00e5de er lagt i modsat retning af de tilst\u00f8dende indre tr\u00e5de.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1337\" height=\"400\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/3Figure-2-Rotation-resistant-overhead-crane-wire-rope-selection-example.png\" alt=\"\" class=\"wp-image-11943\"\/><figcaption class=\"wp-element-caption\"><em>Figur 2 Eksempel p\u00e5 rotationssikkert st\u00e5lwire (Kilde: GB\/T 8706-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<ol>\n<li><strong>Enkeltlags reb<\/strong> \u2014 Et flertr\u00e5det reb best\u00e5ende af et lag af tr\u00e5de lagt spiralformet omkring en kerne.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1337\" height=\"388\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/4Figure-3-Single-layer-multi-strand-rope-example.png\" alt=\"\" class=\"wp-image-11910\"\/><figcaption class=\"wp-element-caption\"><em>Figur 3 Eksempel p\u00e5 enkeltlags flertr\u00e5det reb (Kilde: GB\/T 8706-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<ol>\n<li><strong>Parallellukket reb<\/strong> \u2014 Et flertr\u00e5det reb best\u00e5ende af to eller flere lag af tr\u00e5de lagt i \u00e9n operation omkring en tr\u00e5dkerne eller fiberkerne.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1337\" height=\"350\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/5Figure-4-Parallel-closed-rope-example.png\" alt=\"\" class=\"wp-image-11911\"\/><figcaption class=\"wp-element-caption\"><em>Figur 4 Eksempel p\u00e5 parallelt lukket reb (Kilde: GB\/T 8706-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1766\" height=\"891\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-2-Minimum-safety-factors-for-mobile-overhead-cranes.png\" alt=\"\" class=\"wp-image-11912\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-2-Minimum-safety-factors-for-mobile-overhead-cranes.png 1766w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/6Table-2-Minimum-safety-factors-for-mobile-overhead-cranes-1536x775.png 1536w\" sizes=\"(max-width: 1766px) 100vw, 1766px\" \/><figcaption class=\"wp-element-caption\"><em>Tabel 2 Minimumssikkerhedsfaktorer for mobilkraner (Kilde: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<p>Mobilkraner omfatter lastbilkraner, hjulkraner, b\u00e6ltekraner, terr\u00e6ng\u00e5ende kraner og lastbilmonterede kraner (GB\/T 20776-2023).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1393\" height=\"1129\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/7able-3-Minimum-safety-factors-for-static-ropes-and-erection-ropes.png\" alt=\"\" class=\"wp-image-11913\"\/><figcaption class=\"wp-element-caption\"><em>Tabel 3 Minimumssikkerhedsfaktorer for statiske reb og erektionsreb (Kilde: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-overhead-crane-wire-rope-selection\">3. Valg af wire til traverskraner<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-1-minimum-breaking-force\">3.1 Minimum brydekraft<\/h3>\n\n\n\n<p>Fmin \u2265 S \u00d7 Zp<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Symbol<\/th><th>Mening<\/th><\/tr><\/thead><tbody><tr><td>Fmin<\/td><td>Minimum brydekraft<\/td><\/tr><tr><td>S<\/td><td>Maksimal rebsp\u00e6nding<\/td><\/tr><tr><td>Zp<\/td><td>Minimum sikkerhedsfaktor (se tabel 1, 2, 3)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Speciel h\u00e5ndtering af gribekraner:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Tilstand<\/th><th>Lukkesnor S_cl<\/th><th>Holdetov S_hold<\/th><\/tr><\/thead><tbody><tr><td>Indl\u00e6s automatisk udlignet<\/td><td>Belastet gribemasse \u00d7 66% \u00f7 lukkerebet falder<\/td><td>Belastet gribemasse \u00d7 66% \u00f7 holdetov falder<\/td><\/tr><tr><td>Belastningen er ikke automatisk udlignet<\/td><td>Belastet gribemasse \u00f7 lukkerebet falder<\/td><td>Belastet gribemasse \u00d7 66% \u00f7 holdetov falder<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-2-maximum-fleet-angle\">3.2 Maksimal fl\u00e5devinkel<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Tilstand<\/th><th>Fl\u00e5devinkelgr\u00e6nse<\/th><th>Reference<\/th><\/tr><\/thead><tbody><tr><td>Rotationsbestandigt reb<\/td><td>\u2264 <strong>2\u00b0<\/strong><\/td><td>GB\/T 34529-2017, paragraf B.4<\/td><\/tr><tr><td>Standard st\u00e5lwire<\/td><td>\u2264 <strong>4\u00b0<\/strong><\/td><td>GB\/T 34529-2017, paragraf B.4<\/td><\/tr><tr><td>Reb, der g\u00e5r ind i\/ud af en skiverille<\/td><td>< <strong>5\u00b0<\/strong><\/td><td>GB\/T 27546-2011, klausul 5.7.2; GB\/T 3811-2008, klausul 6.3.3.3.1<\/td><\/tr><tr><td>Reb, der g\u00e5r ind\/ud af en rillet tromle<\/td><td>\u2264 <strong>3,5\u00b0<\/strong><\/td><td>JB\/T 9006-2013, klausul 4.7.2; GB\/T 3811-2008, klausul 6.3.3.3.2<\/td><\/tr><tr><td>Almindelig tromle, flerlags, ingen spoleenhed<\/td><td>\u2264 <strong>1,7\u00b0<\/strong><\/td><td>JB\/T 9006-2013, klausul 4.7.3; GB\/T 3811-2008, klausul 6.3.3.3.3<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Til flerlagstromlevikling anbefales st\u00e5lwirer med st\u00e5lkerner.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1512\" height=\"1040\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/8Figure-5-Fleet-angle-and-helix-angle.png\" alt=\"\" class=\"wp-image-11914\"\/><figcaption class=\"wp-element-caption\"><em>Figur 5 Fl\u00e5devinkel og helixvinkel<\/em><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Symbol<\/th><th>Mening<\/th><th>Begr\u00e6nse<\/th><\/tr><\/thead><tbody><tr><td>\u03b1<\/td><td>Tromlespiralvinkel<\/td><td>\u2014<\/td><\/tr><tr><td>\u03b2<em>venstre + \u03b1, \u03b2<\/em>h\u00f8jre \u2212 \u03b1<\/td><td>Fl\u00e5devinkel i forhold til tromlens centerlinje<\/td><td>\u2264 3,5\u00b0 (typisk designet til maks. 3,5\u00b0)<\/td><\/tr><tr><td>\u03b2<em>venstre, \u03b2<\/em>h\u00f8jre<\/td><td>Fleetvinkel ind-\/udg\u00e5ende skive<\/td><td>&lt; 5\u00b0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Foranstaltninger til at reducere fl\u00e5devinklen:<\/strong><\/p>\n\n\n\n<ul>\n<li>\u00d8g tromlediameteren for at reducere viklingsomr\u00e5det<\/li>\n\n\n\n<li>\u00d8g afstanden mellem skive og tromle<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-3-maximum-service-temperature-for-wire-rope\">3.3 Maksimal driftstemperatur for st\u00e5lwire<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Kernetype<\/th><th>Maksimal temperatur<\/th><th>Bem\u00e6rkninger<\/th><\/tr><\/thead><tbody><tr><td>Fiberkerne (FC)<\/td><td><strong>100\u00b0C<\/strong><\/td><td>\u2014<\/td><\/tr><tr><td>St\u00e5lkerne (IWRC) \/ enkeltstrenget reb \/ l\u00e5st reb<\/td><td><strong>200\u00b0C<\/strong><\/td><td>Fra 100\u00b0C til 200\u00b0C kan der antages et styrketab p\u00e5 10%; der kr\u00e6ves et specielt sm\u00f8remiddel over 100\u00b0C.<\/td><\/tr><tr><td>Omgivelsestemperatur <strong>\u221240\u00b0C<\/strong><\/td><td>Styrke up\u00e5virket<\/td><td>Ingen reduktion af arbejdsbelastning n\u00f8dvendig, men rebets ydeevne kan afh\u00e6nge af sm\u00f8remidlets effektivitet ved lave temperaturer<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Hvis driftsmilj\u00f8et forbyder sm\u00f8ring af st\u00e5lwirer, anbefales det at konsultere leverand\u00f8r og k\u00f8ber, herunder at fasts\u00e6tte krav til inspektionshyppighed.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-overhead-crane-drum-and-sheave-selection\">4. Valg af tromle og skive til traverskran<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-1-drum-type-and-winding-direction\">4.1 Tromletype og viklingsretning<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Sammenligning<\/th><th>Almindelig tromle<\/th><th>Rillet tromle<\/th><\/tr><\/thead><tbody><tr><td>Henstilling<\/td><td>Acceptabel<\/td><td><strong>Foretrukket<\/strong> (enkeltlagsvikling)<\/td><\/tr><tr><td>Flerlagsvikling<\/td><td>Flangeh\u00f8jde over yderste reb \u2265 0,5d<\/td><td>Samme som venstre<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Regler for viklingsretning:<\/strong><\/p>\n\n\n\n<ul>\n<li>Almindelig tromle \u2192 Viklingsretningen afh\u00e6nger af rebets l\u00e6gningsretning; bestem rebets fastg\u00f8relsespunkt i henhold til tabel 4.<\/li>\n\n\n\n<li>Rillet tromle \u2192 Begge rebl\u00e6gningsretninger kan bruges, men <strong>samme lay som for en almindelig tromle foretr\u00e6kkes<\/strong>: Venstre spiralformet rille matcher h\u00f8jre l\u00e6gningsreb, h\u00f8jre spiralformet rille matcher venstre l\u00e6gningsreb.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1383\" height=\"1137\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/9Table-4-Correct-method-for-determining-the-rope-fixing-point-on-a-drum.png\" alt=\"\" class=\"wp-image-11915\"\/><figcaption class=\"wp-element-caption\"><em>Tabel 4 Korrekt metode til bestemmelse af rebets fastg\u00f8relsespunkt p\u00e5 en tromle (Kilde: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-2-groove-radius-and-sheave-material\">4.2 Spiralradius og skivemateriale<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Parameter<\/th><th>Anbefalet v\u00e6rdi<\/th><\/tr><\/thead><tbody><tr><td>Rilleradius<\/td><td>0,525d\u20130,550d, <strong>optimal 0,5375d<\/strong><\/td><\/tr><tr><td>Skive inkluderet vinkel<\/td><td>45\u00b0\u201360\u00b0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Retningslinjer for valg af skivemateriale:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Viklingstype<\/th><th>Anbefalet materiale<\/th><th>\u00c5rsag<\/th><\/tr><\/thead><tbody><tr><td>Flerlags<\/td><td>Polymerskiver eller polymerforede riller er acceptable<\/td><td>Den mest alvorlige skade p\u00e5 rebet opst\u00e5r i krydsningszoner p\u00e5 tromlen<\/td><\/tr><tr><td>Enkeltlags<\/td><td>Polymerskiver <strong>ikke anbefalet<\/strong><\/td><td>Skader er prim\u00e6rt udmattelsesinduceret; indre udmattelse af rebet er sv\u00e6rere at opdage med polymerskiver<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Ved hyppig service: brug <strong>st\u00e5lskiver<\/strong> for at \u00f8ge sandsynligheden for udvendigt slid \u2014 dette slid letter inspektion af reb. Hvis der anvendes polymerskiver, anbefales det at inkludere mindst <strong>en st\u00e5lskive<\/strong> i rivearrangementet, normalt det, der er t\u00e6ttest p\u00e5 tromlen.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-3-minimum-drum-and-sheave-diameter\">4.3 Minimum tromle- og skivediameter<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1105\" height=\"1423\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/07\/10Table-5-Overhead-Crane-Drum-and-sheave-selection-coefficients-and-minimum-diameter-calculation-.png\" alt=\"\" class=\"wp-image-11916\"\/><figcaption class=\"wp-element-caption\"><em>Tabel 5 Valgkoefficienter for tromle og skive og beregning af minimumsdiameter (Kilde: GB\/T 34529-2017)<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-special-operating-conditions\">5. S\u00e6rlige driftsforhold<\/h2>\n\n\n\n<p>Til h\u00e5ndtering af smeltet metal, ekstremt barske og\/eller \u00e6tsende milj\u00f8er og lignende s\u00e6rlige forhold:<\/p>\n\n\n\n<ol>\n<li>Mekanismens arbejdsbelastning m\u00e5 ikke v\u00e6re lavere end M5<\/li>\n\n\n\n<li>Zp-v\u00e6rdien skal \u00f8ges med 25%, op til et maksimum p\u00e5 9,0<\/li>\n<\/ol>\n\n\n\n<p>Det originale dokument d\u00e6kker ogs\u00e5 brugen af drejeled og drejeled, \u00e5rsager til st\u00e5lwireforringelse, wireforl\u00e6ngelse og -valg samt wireafslutning. Se den originale standard for yderligere unders\u00f8gelse.<\/p>\n\n\n\n<p><strong>Referencestandarder<strong>(<a href=\"https:\/\/openstd.samr.gov.cn\/bzgk\/std\/std_list?p.p1=0&amp;p.p90=circulation_date&amp;p.p91=desc&amp;p.p2=%E8%B5%B7%E9%87%8D%E6%9C%BA\" target=\"_blank\" rel=\"noopener\">Foresp\u00f8rgsel om kinesiske kranstandarder<\/a>)<\/strong>:<\/strong><\/p>\n\n\n\n<ul>\n<li>GB\/T 34529-2017 Kraner og taljer \u2014 Udv\u00e6lgelse af st\u00e5lwirer, tromler og skiver (IDT ISO 16625:2013)<\/li>\n\n\n\n<li>GB\/T 20118-2017 St\u00e5lwirer til generelle form\u00e5l (NEQ ISO 2408:2017)<\/li>\n\n\n\n<li>GB\/T 20863.1-2021 Kraner \u2014 Klassificering \u2014 Del 1: Generelt (IDT ISO 4301-1:2016)<\/li>\n\n\n\n<li>GB\/T 6974.1-2008 Kraner \u2014 Ordforr\u00e5d \u2014 Del 1: Generelt (IDT ISO 4306-1:2007)<\/li>\n\n\n\n<li>GB\/T 5972-2023 Kraner \u2014 St\u00e5lwirer \u2014 Pleje og vedligeholdelse, inspektion og bortskaffelse (IDT ISO 4309:2017)<\/li>\n\n\n\n<li>GB\/T 8706-2017 St\u00e5lwirer \u2014 Ordforr\u00e5d, betegnelse og klassificering (MOD ISO 17893:2004)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"Wire rope, drums, and sheaves are the core components of any overhead crane or hoist lifting mechanism. When specifying these components, what minimum safety factor should you use? How do you calculat","protected":false},"featured_media":11527,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[826,801,825,822,823,121,829,828,818,827,824],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts\/11917"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":3,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts\/11917\/revisions"}],"predecessor-version":[{"id":11944,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/xmxposts\/11917\/revisions\/11944"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/media\/11527"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/media?parent=11917"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/posts_category?post=11917"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/da\/wp-json\/wp\/v2\/posts_tag?post=11917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}